Watering fruit trees. How and how much should fruit trees be watered? Is it possible to water the trees on a hot sunny day
Let's talk about watering fruit trees.
Many of us have, albeit small, but our own garden, where we enjoy spending our free time caring for plants, or just relaxing and gaining strength, contemplating the beauty flowering trees and inhaling the aroma of flowers, and someone, perhaps, is still only dreaming about it. But I think this article will be interesting and useful to everyone, since in it I want to talk about how to water fruit trees.
Thoroughly water fruit trees recommended 3-4 times a year. This must be done during the following periods:
1) in the spring, before bud break (April-May);
2) 2-3 weeks after the end of flowering;
3) 2-3 weeks before the start of harvesting;
By by and large there is no need to water fruit trees too often, but with each watering, such an amount of water should be applied to achieve soil moisture to the depth of the main mass of roots.
To determine how much water a particular tree needs, the calculation is made on the basis that 2-3 buckets of water must be applied for each year of a tree's life: for trees under the age of 5 years, it will be enough to pour 6-10 buckets per watering, from 5 to 10 years old - 12-18, over 10 years old - 20 - 25 buckets of water.
If you will be water fruit trees more often but little by little, wetting only upper layer soil, besides the fact that you will bring little benefit to this, it may also lead to negative consequences because - waterlogged surface layer soil hinders air circulation.
The frequency of watering is directly related to the characteristics of the soil on which your garden grows. So on heavy clay soils plants need to be watered less often, but more abundantly. On sandy soils - more often, but with less water.
There are several ways watering fruit trees:
1) The simplest of them and the most time-consuming one, working on the principle of draw more, carry on, is watering from a bucket. For better water retention, it is recommended to make grooves along the perimeter of the crown projection, and when the water is absorbed into the soil, they are covered.
For this purpose, it is also possible to drill wells about half a meter deep, at the rate of 1 well per 1 m 2 of the trunk circle area. The wells are drilled with a drill with a diameter of 10-12 cm and filled with sand. They can also be used for applying liquid fertilizers.
2) You can also water the trees with a hose, placing it in the trunk circle, first of one tree, then the next, etc. But with this method of watering trees, it will be quite difficult to control the flow of water.
3) The most acceptable way, in our opinion, should be considered watering trees through special dispensers of spray nozzles that are put on water hoses. This is the so-called sprinkling.
After watering, as well as after heavy rain, the soil around the tree must be loosened, otherwise the resulting crust will prevent the penetration of air into the soil.
Can be ordered. Now is the time to put your garden tools in order and purchase new ones as needed. A bunch of various items garden tools produces industry to help gardeners. One of such important and constantly necessary items is an garden hose for watering
Insufficient moisture in the soil negatively affects the condition of any plant, this also applies to large fruit trees. They quickly age, sharply lose their productivity, their fruiting is reduced, for them the threat of freezing in winter becomes more real. But excessive moisture should not be considered a favorable circumstance either: moisture displaces oxygen from the soil and contributes to the accumulation of carbon dioxide, which can lead to the death of roots or inhibition of the root system.
When to Water Fruit Trees
To maintain health and fertility, you should know when to water fruit trees. AT special care plants need the first few years after transplantation: this period is coming active formation crowns and the development of the root system, but the existing roots of the tree are not yet powerful enough to provide all the needs of the plant. If the summer is dry, then the seedlings will need to be watered 5-8 times per season, if it is moderately humid, then 3-4 times. For young tree 2-4 buckets of water will be enough, for a seven-eight year old - from 10 to 15.
Watering is recommended to coincide with certain stages of plant development: spring watering produces in early spring before bud break. The next time the tree will require an increased amount of water after two weeks after the end of flowering. Moisten the soil a couple of weeks before the predicted harvest. Of particular importance is abundant moisture-charging watering before the tree leaves for the winter.
Perform winter irrigation fruit trees especially important if the autumn is dry. If in October the plant does not store enough moisture, then drying out of the wood can lead to freezing of the tree in winter, well-moistened soil freezes to a lesser extent.
The rate of water application during late autumn irrigation is about 5-6 buckets per square meter. area meter. Water should be introduced into the grooves made along the circumference around the trunk, the opinion that it is useful to water trees in near-stem funnels is not correct. The area in which the peripheral roots are located, which work more actively, needs more moisture. In principle, increased moistening of the soil adjacent to the vertical root is not required; moreover, modern agronomy is of the opinion that it is harmful to the plant.
Watering rules
To water the trees correctly, you should have an idea of how the root system. It is generally accepted that the depth of the root zone, and hence the zone where the roots can actively absorb water, is as follows:
- for non-fruiting young trees, pears and apple trees - from 0.5 to 0.7 m
- fruiting on dwarf rootstocks, in fruiting stone fruit trees equals from 0.5 to 0.7 m
- for adult currant bushes - up to 0.7 m, for young ones - up to 0.4 m
- gooseberries - from 0.25 in young to 0.6 in adult plants.
More abundant and frequent watering will be required for plants on low-growing rootstocks with a weak root system. Full-grown gardens can be watered less often. To ensure the safety of moisture, mulching of the soil around the trunk circle is used. The last watering of apple trees of autumn-winter varieties is carried out no later than 2-3 weeks before harvesting.
Different watering methods
It is considered economical and fairly simple to arrange drip irrigation trees. Water with this method enters slowly, directly into the root zone, its distribution occurs in two directions: vertical and horizontal. If the tree is large, then it is better to equip two droppers according to different sides trunk, for small seedlings one system will be enough.
Depending on how much water is required to be added, watering will be needed for a period of 1 to 3 days. The duration of watering is also affected by the rate at which water flows out of the system. Drip irrigation can be used flat areas, and on slopes, it is effective on different types of soil.
Today, the industry produces drip irrigation systems different type. It should be noted that the main disadvantage of droppers is their tendency to accumulate salts and solid impurities, and as a result - clogging.
Good results are obtained by watering trees by the method sprinkling. Water, which is supplied by sprinklers, is absorbed by the soil evenly, does not lead to its erosion and siltation. Sprinkler systems are also used for watering berry crops.
Recently, the method has gained popularity irrigation in wells. They are built 1 by 1.5 -2 square meters. meters., in trunk circle. The diameter of the well should have a diameter of 0.1 to 0.12 m, a depth of up to 0.5 m. The well is covered with sand, broken bricks, gravel. In autumn, these wells will need to be insulated to prevent the possibility of soil freezing. Through the wells, you can make not only water, but also nutrient solutions.
How to determine the amount of water when watering from a hose
Sometimes you have to combine watering trees with a hose with other garden work. The hose is placed in the prepared hole and left for a while. It is impossible to determine exactly, and sometimes even approximately, how much water got under a tree. To prevent the situation, it should be noted how long a full bucket is collected from the hose, then, in accordance with the irrigation rate, the amount of time required to find the hose under each of the trees is calculated.
- It is not the frequency of watering that matters, but their usefulness - four, but plentiful waterings will be enough for an adult tree. If the harvest is not high, then only two irrigations are carried out.
- From frequent watering with a small amount of water there will be no benefit, but harm.
- For clay soil required occasional watering with a large amount of water, for sandy - more frequent, with less consumption.
- Watering trees during flowering is not done - it is organized during the period when the ovary begins to grow.
- It is necessary to pour water not on the root neck of the tree, but evenly on the entire near-trunk part of the soil.
- It is impossible to allow the roots to be exposed during the moistening of the soil, if nevertheless this happened, they should be immediately covered with soil.
- If the garden is ennobled with turf, then when watering, you should use large quantity water.
- It is impossible to say for sure how often to water trees - watering is planned depending on the weather, the needs of plants for irrigation, and the quality of the soil in which they grow.
- It is not recommended to additionally moisten the soil during the ripening period of the crop - this can provoke cracking and falling of the fruit.
- The final watering of the season is carried out during the period of active leaf fall.
- Need more watering early varieties pears and apple trees.
- Seed varieties should be watered more frequently than stone fruits.
- The more ovaries on the tree, the more abundant watering it needs.
Watering trees in the spring is an important part of every gardener's life. This procedure must be carried out in without fail. The roots of the tree may lack natural moisture due to low rainfall. That's when gardeners irrigate.
Watering trees is easy. This is a simple procedure that is carried out regularly. It has its own characteristics in every season of the year. This is especially important for fruit trees. Wrong actions can lead to low yields in the current, as well as next year. It is imperative to supply moisture to a tree with fruits during the hot months.
The water norm for each tree, according to its age and type, can only be determined by the owner of the garden. Important factors are the following:
- soil type;
- its humidity;
- frequency of precipitation in a particular region of the country.
A young tree that was planted this spring should be watered about 2 or 3 times a month. Moisture must be applied at the beginning active growth seedling, flowering buds of future fruits and crop formation. New young trees are watered immediately after planting. It does not matter at all whether it was planted in spring, summer or autumn. In each case, the rule for supplying moisture is the same for everyone.
The first watering not only enriches the seedling with water, but also compacts the earth around the young root system. That is why it is highly recommended not to pour several buckets of water around young tree loosening the wet earth. In such cases, special sprinklers are installed under the average pressure of the liquid. Thus, the spray will not be able to fly beyond the circle of the trunk of young trees.
In the absence of plumbing garden plots summer residents use watering cans. So you can spend the same volumes of liquid much more efficiently. After planting and watering a new seedling during a moderately rainy season, water is supplied regularly during the spring, summer and autumn period. Until the soil in the hole around is sufficiently firm, the garden owner should use a watering can or sprinkler. Later, it will be possible to arbitrarily lay the hose, including the medium pressure. In moderately rainy spring and summer period liquid is given to young seedlings only in extreme cases of drying out of the earth. The degree of dryness of the soil can be periodically checked by touch.
In a particularly rainy season, excessive moisture is not needed at all. Only in the dry end of spring and summer, regular watering of fruit and ordinary seedlings is necessary. Otherwise, the summer resident can easily lose them. In the first year after planting, you will only need to water the tree once a week. Using special sprinklers, the gardener must carefully monitor the time.
In subsequent years of life, the supply of moisture is not so mandatory. It is necessary to carry out the procedure only as needed, that is, in severe drought and long periods lack of precipitation. For example, in the first months of spring, the tree will have enough liquid anyway. The gardener can use absolutely any method. Watering should only be started when the soil is dry. It is easy to check such a factor by digging the ground with a shovel. If dryness is observed, then you need to immediately make the soil wet.
However, the gardener should not overdo it. Behind last year the tree has already developed a powerful root system that needs not only water, but also a certain amount fresh air. Wet soil will not allow the root system to breathe well. As a result - complete decay of the root system and further loss of the tree. The drying of newly appeared leaves is the first signal of such a problem. Loosening the earth around the trunk will help fix the problem. This will greatly increase air access to the roots.
old copies
Older trees (3 years or more) require a different frequent watering. Additional fluid is only supplied during fairly hot summers or any other dry period. A large amount of water in autumn will help the tree prepare for winter and avoid damage from the first frost. 2 buckets of water in the morning and in the evening for a week (during the period of leaf drop) will be enough.
In the spring, watering even an old tree is carried out as usual. It is desirable that the summer resident monitors the level of dryness of the earth around the trunk.
This will help prevent root rot and drying out. It is advisable to combine the liquid supply for a tree over 15 years old with various fertilizers. Organic ones are laid in a trench around the trunk, and mineral ones - in special holes.
Major Mistakes
Many gardeners make mistakes that inevitably lead to the death of various fruit crops. It is not recommended to feed plants with moisture often and in small quantities. After such an event, the root system quickly rots.
Water must be poured into an annular trench around the crown. So it will be absorbed best, because the root system is far from the trunk. Other methods are ineffective. Waterlogged land will do much more harm than good to the plant.
Measures for uninterrupted water supply at the end of summer are not needed, because because of this the tree will not be able to properly prepare for wintering. Residents are advised to follow general rules at any time of the year, and then they will always have a rich harvest. Spring young fruit seedlings it is necessary to water no more than 5 times, and evenly the entire piece of soil near the trunk.
If the roots become visible, then they are immediately covered with soil. Water is brought in rarely, but quite plentifully (much more often in sandy soil). That is why it is important to initially determine the type of soil.
Fertilizing the garden in spring
spring orchard more than ever needs additional feeding. It is required even for fertile soil. At this time of the year, the summer resident must make mineral fertilizers around the stem. Pre-autumn, nitrogen and potassium top dressings are introduced.
If autumn horticultural crops not fertilized, then in mid-April you need to use complex fertilizer, which necessarily includes all the necessary healthy growth Components. Top dressing begins in March or April immediately after the snow has melted. For dry and liquid fertilizers, sufficiently moist soil is needed, since the roots can only absorb dissolved substances and elements. Fertilize in the evening, preferably immediately after heavy rain has passed.
Using the right fertilizer and regular watering throughout the spring, fruit trees will increase flowering activity. Fruit buds with shoots will quickly form. Thus the owner will bountiful harvest. The flowering and growth of a garden pet depend on the availability of nutrients and substances.
Getting ready for winter sleep. To help them survive the frosts, we will need to work harder - give them a good drink on the eve of the cold.
Why you need to water your garden in the fall
Have you noticed how quickly clothes dry in the cold? It would seem that the water is frozen. But evaporation still happens. Just the same in winter moisture evaporates from plant branches. At the same time, the bark can wrinkle, and the resistance of plants decreases. Frost can damage the ground part of a tree or shrub. And sometimes in trouble, when it freezes out or, it is not so much frost and winter that are to blame, but dry autumn and a negligent owner.In order to prepare the garden for a successful wintering, you need carry out water charging. It differs from the usual summer themes, which requires much large volumes water.
Sufficiently moistened soil has greater thermal conductivity and allows heat from the lower horizons to warm up the roots of plants more freely. But here too it's important not to overdo it. If the soil is waterlogged, flooded, then the water will simply force the air out of its pores, and this can cause the roots to die - they will begin to suffocate.
Determining the need for watering
The soil in the fall needs to be wetted very deeply - by 1-1.5 m. How do you know how much to water the ground for you and in this particular season? This is both easy and difficult to do at the same time. It is necessary to dig a hole in the garden among the trees that you are going to water, a hole 30-40 cm deep. The condition of the soil at the bottom of the hole will help you determine the degree of soil moisture in current year:- no need to water the garden before winter if you take a handful of earth from the bottom of the pit and clench it in your fist, you will get a dense lump; on a blotter or just a piece of cheap toilet paper from such soil will remain wet footprint- evidence of its sufficient moisture content;
- can reduce watering rates by 30% if a lump of earth compressed in the palm of your hand forms and does not fall apart, but does not leave a wet mark on paper;
- irrigate to the fullest you will have to, if a compressed handful of earth from the bottom of the pit crumbles when you open your palm, does not hold in a lump.
Time for fall watering
And watering at the full rate will have to be serious enough. About 10-14 buckets of water per 1 m² area for adult trees and at least 3 buckets per young meter tree.
Winter watering time
Do not water the garden abundantly before the start - you can cause a prolonged growth of shoots, which will affect their ripening and preparation for winter. This is especially dangerous for a young garden.Start charging the soil with moisture with the beginning of the fall of the leaves. The air temperature should drop to about +2...+3°С.
Watering methods
You can water different ways. More often than not, we just quit for a while. Such watering is preferable if the garden is located on a flat area. In order for water to flow through the rows, you can dig special irrigation canals, ditches.Well, the most ideal way is this. You can make a simplified system: just lay pieces of hoses pierced in many places around each tree (either in a ring around the trunk, or along a row). Connect these segments with fittings or connectors to the main hose from the water supply. This method will require a little time to prepare, but then for a long time it will free you from the need to monitor the water supply to the plants.
Watering can be done in a variety of ways
Most summer residents and gardeners often argue about whether apple trees should be watered in the summer.
Indeed, in a natural setting, they have enough of the water that falls in the form of precipitation and the one that can raise the roots of trees from the depths.
AT modern world the weather changes dramatically and frequently, and areas not previously classified as dry regions may suffer from lack of moisture. Because yield indicators with "natural irrigation" are difficult to predict, and for the southern territories are completely impossible.
As a result, profit from the garden is closely related to its provision of moisture, especially during the hot period.
The amount of cubic meters of water needed for irrigation varies greatly depending on the composition of the soil and the depth of its horizons, season, weather, age of trees and their size. This publication discusses all these factors, which make it easy to determine how and when to water apple trees.
Watch a video from an expert on how to care for and water fruit trees:
How often should apple trees be watered?
A gardener who wants to properly water his own must check every time after watering, and how deep is the soil soaked.
To do this, you do not need to poke your finger into the soil, because. the root layer starts from a depth of 11 cm. For this, a stick is needed, the length of which is 14 cm or more, and its surface is ribbed.
Pushing the stick, find optimal amount of irrigation water for each specific area for irrigation throughout the year. The more the stick is covered in mud, the deeper the soil gets wet.
The best timing and methods of irrigation pome orchards are considered: 
- 1st - after half a month from full flowering;
- 2nd - when an increased sprout of new apples becomes noticeable;
- 3rd - when the buds are almost completely isolated on the shoots of the current year;
- 4th - immediately after picking fruits from apple trees " summer varieties"or when pouring" winter apples ";
- 5th - when the tree has shed all the foliage or "winter watering".
At the time of flowering or immediately after it is not customary to water it, since an excess amount of water negatively affects the percentage of fruit set and contributes to a sharp jump in mold and rot.
In case the site is located in steppe zone or if the spring was too dry, then the lack of water under the roots during flowering will result in a meager harvest in September.
Summer is hot, dry?
It is important to understand how often to water apple trees in summer. It is necessary to make a couple of additional waterings.
Time, when to water apple trees in summer: 
- One or two waterings are done at the end of June or in July;
- One when pouring and coloring apples.
The volume of water poured out at a time:
- For an apple tree from 6 to 15 years old, it is 6-9 buckets;
- Up to 35 years - up to 40 liters for each quarter of the irrigation circumferential groove under the crown;
- And over 50 years old - up to 7 buckets for the same length.
Such watering is done every 2-3 weeks.
ADVICE. Only in the right and “useful” place, watering is good for the roots of the apple tree!
How to irrigate apple seedlings after planting?
The very first watering after planting made right on the day of landing events. If there are problems with water, then within 30 hours from the moment the apple trees are planted.
Spring is wet and long-lasting mud? The volume of irrigation water is minimal - no more than a seven-liter bucket on a tree at the time of planting.
Watch a useful video on how to increase the survival rate of a seedling:
In the first summer, you need to water three to five more times.. This quantity is connected both with the composition of the soil in the garden, and with whether it was dug out in advance and prepared according to the rules landing pit. When to water apple trees in summer, depending on the area?
- When everything is done “according to science” and the area is not full of hot periods, then water is poured three times.
- If sandy soils, the area is blown by the winds, and the summer is hot and dry, then even five times will not be enough.
So the second watering is carried out after 25 days from the first, if there is enough rain, or after 14 days, if the spring is dry.
And the fifth time is watered in August, if hot days come.
Sometimes a very dry autumn happens in the steppe regions, and if this happens, it is better to water the tree and then remove all unripened twig tips than an overdried soil layer will worsen overwintering.
If the year turned out to be abnormally hot, then one-year-old apple trees are watered once every 10 days, while there is abnormal heat.
Each time they pour into an annular groove 15 cm deep, made a meter from the trunk of an apple tree.
The volume of irrigation water is from 7 to 15 liters for loams and chernozems, and up to 17-20 liters for sandstones.
The heat is dangerous to the tree, and especially critical days the apple tree should be relieved by watering. Watering apple trees in the heat is divided in half. The first part is poured along the furrows until the absorption stops completely.
The second portion is poured into branches or in a layer of 1.5 meters from the ground. So the entire volume of soil covered by the roots will be evenly saturated with water and the surface air will cool and moisten. The event is held at sunset.
If there are few trees and there are no sprinklers, then the volume of irrigation per apple tree will be as follows:
- Up to 35 years = 40 liters,
- And older = 50 liters.
And early in the morning they repeat, the volume of water is the same. At the same time, they pour into a hole under the crown a quarter of a meter deep.
Watch a video on how to properly water an apple tree in summer:
If watering an apple tree in the heat only with “rain”, then such watering will bring little benefit. It will only moisten the surface of the earth, and there are no suction roots, plus a crust can form on the surface of the earth, which makes it even more difficult for water to reach the roots. And the roots, as they were thirsty, are still experiencing.
ADVICE. The root neck of the tree should be above ground level and not lock!
Drip irrigation of apple trees
This method, most common in commercial dwarf and palmet apple orchards, is very effective as it soaks the soil just above the roots of each tree.
Drip irrigation system requires good, pre-filtered water to prevent clogging of irrigation drippers with debris and sediment.
Watch the video on how to make drip irrigation for garden trees:
The flow rate is regulated from a barely open line - for slow penetration of water into the soil, and to a fully open one - for quick watering of apple trees.
The water itself to the dropper buried in the soil comes from the feeder tank under low pressure, then by main pipe, further along the sleeve in a row, and only then into the dropper.
Irrigation sleeves are installed in new gardens with a distance of about 40-90 cm from the trunks, a row of sleeves from a row - 2 meters. When the trees grow up they demand more water and their root zone becomes larger.
After 5 or 8 years, a new sleeve is pulled again on the other side, which puts second drip 50 cm from the trunk. Additional droppers are added as needed.
How to water apple trees in spring?
CAREFULLY! Do not try to follow the "advice" to pour out as many buckets as the apple tree is old: you yourself will overstrain and ruin the tree!
Is spring often accompanied by rain and showers? Additional polive will even be harmful.
But if the garden is laid out in an area with a predominance of hot and dry days, then watering is carried out before flowering begins, and the best moment is the separation of the buds in the inflorescences.
The irrigation period is associated with the formation of apple buds. If the heat is on at the moment the flowers bloom and the earth is dry, then by nightfall the garden is watered along the furrows or poured at least 5 buckets per adult tree.
Most suitable watering along the furrows, into the annular holes around the trunks and drip. Sprinkling and watering from above the soil with a hose is the most unacceptable forms of irrigation in horticulture.
Watering rules in different seasons:
How to water apple trees in summer?
It is necessary to carefully monitor the water supply of the garden in the midst of the summer heat.
So, how to water apple trees in summer? Watering is especially valuable in the first half of summer. after the fall of the ovary (mid-June).
The second time should be watered after 15-19 days.
If dry weather and sunshine during the summer - frequent guests and their presence greatly harms the garden, then the frequency of watering is increased, but the volume of watering is not changed.
IMPORTANT! Watering from a hose and sprinklers is the least suitable!
How often to water apple trees in autumn?
In autumn, you should not pour water when frequent rains already saturate the soil with water. Especially dangerous watering in September warm weather , this introduces the tree into a state of rapid vegetative growth and its branches do not have time to accumulate enough sugars and frosty winter they die from freezing.
Watering before winter
Late autumn perform one moisture charging irrigation preparing the garden for winter. On average, they pour as much water as it will be absorbed: from 12 buckets per tree and more. The purpose of winter watering is to reduce the threat of freezing and desiccation. This is also a guarantee against drying out of the plant in winter.
How to water an apple tree in the heat?
The bottom of the pit is 4 bayonets deep, 2 bayonets are filled with sawdust-chip mass, and then they are poured with slurry, after filling the soil layer is returned to its place, the excess top soil is temporarily scattered under the trees. In the spring and summer, after the pit shrinks, the soil is returned to its place.
chicken manure
You can, but be careful, because this super-concentrated "fertilizer" can "burn" trees. To avoid burns, 1 bucket of bird droppings iron barrel liquefy 10-15 buckets cold water, stir thoroughly, let it brew for 1-2 days.
This fertilizer is introduced into the trunk circular ditch in a full bucket under a fruit-bearing apple tree, and a third of the bucket under young apple trees. It will be great.
The accumulation of nitrites in chicken litter is minimal, therefore it is good to use when digging the soil and for spring mulching. Volume - one bucket for apple trees up to 15 years old and two buckets for adult apple trees.
soapy water
If it was a pure solution of fatty soap, then you can.
But the fact of the matter is that often it is slop, remnants from bathing, and there, after all, parabens, laurettes and laurites of sodium sulfate. These compounds are very different from soap and are extremely dangerous to living creatures in the soil. For until each molecule of this "bad" is connected to the fatty base, it will not disappear.
Therefore, from such watering, not only fungi and bacteria will die out (and they are not always enemies of apple trees), but also useful beetles with worms.
Potassium permanganate
You can spill the soil with a weak solution of potassium permanganate for the prevention and disinfection of the earth. Or, for example, to destroy earthworms that accidentally found themselves in containers with dwarf apple trees, because. they can kill the roots.
But if the gardener is disturbed by worms in the “big” garden, then he can safely listen to the “tyrnet experts” and destroy the garden.
Important! Seriously, potassium permanganate is the strongest oxidizing agent, and with a large amount and concentration it can destroy a lot of things that are necessary and valuable in the soil. That's why it application for watering apple trees is unacceptable!
yeast
Dry, in packs, no. And not because for a tangible effect, several kilos of them will be required. middle garden. But because they are effective in the presence of sugars, and the more sweetness, the better the yeast.
Well, where did summer residents see sweet soil? That is why they bring already fermented pallet sediments from mash, wine, kvass, beer, diluted 1 to 6 with water, onto leaves, like element of the fight against microbial putrefactive infection. 
But such a trick will not work in the soil, there is so much biota that in this way it is impossible to increase the number of beneficial microbes. This the method "works" only in greenhouses, greenhouses, but in containers, and only in the form of pallet yeast sediments.
boiling water
It is possible if the gardener wishes death to his apple trees. After all, this method was brought to the garden by gardeners growing berry bushes, and in order for the method to be “brighter”, then the name was given "boiling water fight".
None in real life living tree, a bush, a shoot will not survive temperatures above 50, which is why they do everything so that the water that has already reached the branches on the bushes is not hotter than +47, otherwise the branches would also deteriorate with pests. For greater insurance, such a reception is carried out by people only in winter.
Yes, that's the problem the composition of branches of trees and shrubs varies greatly. That's why it's pointless to copy. Moreover, many apple trees are tall and sometimes you can’t get to small shoots even with a stepladder.
Yes, and on dwarfs with palmettes it is undesirable to do this. There is no serious confirmation of scientists about the safety of such processing, and even more so about its necessity and usefulness.
Watering with boiling water is possible only for shrubs. Conclusion
Although the apple tree has a high resistance to all kinds of natural adverse conditions, but remember, if it is hot, drought, then it must be watered, despite the development of apples and the warmth of the water.
Watering apple trees “according to the rules”, gardeners will receive a large number of apples, besides appetizing and healthy.
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