Why should foliar fertilizer be sprayed in the morning and evening?

Why not choose noon to spray foliar fertilizer on fruit trees, but choose to do it in the morning or evening? This mainly considers the adhesion of the fertilizer, the burning rate, and the effect, and in terms of time, only morning and evening are the most appropriate, especially in the morning.

Because at noon, when the weather is sunny and the sun is exposed, the leaves are dry and the adhesion is poor, and it is difficult to adhere to the leaves after spraying, which is one of them; Second, the temperature is high at noon, and the water evaporates quickly after spraying, and some leaves are evaporated before they are absorbed. The fertilizer is integrated into water, and the fertilizer is gone after evaporation, so the spraying effect is poor; Third, the temperature is high at noon, and the leaves are hot.

Even hot, when the foliar fertilizer solution is sprayed on the leaves, it is easy to burn the leaves, and the leaves are not conducive to the growth of the plant after being burned.

Morning is the beginning of the day, the fruit trees that rest overnight, quietly recuperate under the caress of the air, wake up in the morning with dewdrops, are refreshed and waiting for the birds to settle down, the master to wait, when there is foliar fertilizer to replenish energy, just ask for it! When the foliar fertilizer is sprayed, the leaves of the fruit tree are like hands, spreading their arms to greet them, instructing the dewdrops to enthusiastically embrace the foliar fertilizer, and the foliar fertilizer is moved and quickly integrated into the embrace. You see, this kind of adhesion, such a spray effect, is not burning, isn't it good?

And in the evening, there is no sun burning, and the burns are gone. Although the leaves are dry and the adhesion is not as good as in the morning, it is also good, at least there is no evaporation at noon, and the leaves of the fruit trees are also very welcome to the arrival of foliar hypertrophy, and the spraying effect is quite good. Therefore, in addition to the morning, it is also a good time to spray in the evening!

Summary: The best time to spray foliar fertilizer on fruit trees is in the morning, followed by the evening, and the worst is the noon when the weather is sunny and the sun is scorching. If the weather is cloudy.

Noon is also possible. The purpose of spraying foliar fertilizer is to supplement nutrients for fruit trees, so the spraying effect should be considered, and the spraying effect is related to leaf adhesion, which is better in the morning than in the evening and better in the evening than at noon. In addition, it is necessary to consider safety, that is, the sun at noon on a sunny day is hot or scalded the leaves, and the leaves are easy to be burned after spraying foliar fertilizer.

Therefore, all things considered, it is generally not the middle of the day, but the morning and evening spraying. That's the answer!

Because the sunlight is weak in the morning and evening, the foliar fertilizer sprayed is not easy to be evaporated by the sun, so that the foliar fertilizer sprayed on the fruit trees will be absorbed and the nutrients will not be lost.

We spray foliar fertilizer, are to be sprayed after the fruit tree grows leaves, this time in general, the temperature in the morning and evening is more suitable, to avoid the high temperature period at noon, but if the temperature at noon is not very high, the temperature is more suitable, we spray foliar fertilizer is no problem.

Personally, I think it's time to fertilize in the morning and evening because there is no sun in the morning and evening. Fertilizer will have a decomposition effect when it hits sunlight, so the effect of fertilizer will be greatly reduced.

Choose a sunny or cloudy day around 4 o'clock in the afternoon to spray selenium-rich fertilizer. Because there are water droplets on the surface of the leaves after spraying fertilizer, it is easy to burn the leaves due to the focus of the water droplets when the sun is exposed to the sun at noon; At the same time, sun exposure will also accelerate the evaporation of water and fertilizer, which is not conducive to the absorption of nutrients by fruit tree leaves.

For foliar fertilization of fruit trees, we fruit farmers are more familiar with it, that is, by spraying fertilizer on the foliar surface to fertilize fruit trees, we can choose different fertilizers according to the growth of fruit trees in different growth periods, and spraying foliar fertilizer during the growth period of fruit trees can promote photosynthesis, improve crop stress resistance, lodging resistance, pest and disease resistance, drought resistance, and make fruit trees grow rapidly.

Weather influence: in addition to the low utilization rate, the common fertilization method has a particularly large impact on the weather, in the dry season you fertilize no matter how much it is useless, because the root system absorbs the ionic state of the fertilizer through hydrolysis, if the fertilizer is not dissolved by water, the fertilization of fruit trees is divided into basal fertilizer and top dressing, and top dressing is divided into soil top dressing and foliar top dressing.

Growers know that foliar fertilization is simple and easy, the amount of fertilizer is small, the fertilizer efficiency is fast, the nutrient utilization efficiency is high, and the effect is obvious, and it can also avoid the fixation and loss of soil fertilizer.

There are two ways for fruit trees to attract external nutrients: one is to provide nutrients to the tree through root absorption and transfer; The other is to replenish the nutrients for the fruit trees through leaf attraction, and through the spraying of foliar fertilizer, the nutrients needed by the crops can be quickly replenished first. Daily root fertilization, the roots absorb nutrients slowly, the conduction speed is slow, through foliar spraying of foliar fertilizer, you can quickly supplement the nutrients required by the crop, to achieve the purpose of nutritional balance. The use of foliar fertilizer generally follows the foliar fertilizer with more nitrogen in the early stage, the mid-term foliar fertilizer has more trace elements, especially the boron, zinc and magnesium content is higher, and the later plant fruit stage needs a large number of nutrients to accumulate and store, and appropriately increase the foliar fertilizer with a higher potassium fertilizer content.

Foliar fertilization is much less than root fertilization in fruit trees to achieve the same effect, but the utilization rate is high, and the effect is rapid and efficient. Especially trace elements such as boron, zinc, iron, manganese, etc. For example, if large cherries are deficient in boron and calcium, a large number of fallen flowers and fruit trees will be sprayed with foliar fertilizer, which can supplement the nutrients needed for plant growth.

For example, spraying calcium boron foliar fertilizer before flowering can promote flower bud differentiation, improve fruit setting rate, prevent fruit cracking and so on. The use of high phosphorus and potassium foliar fertilizer during the fruit coloring period can promote the fruit coloring and sweetening.

I think when spraying foliar fertilizer on fruit trees, we should choose the right time point, and then spray a certain amount to make the best effect and achieve twice the result with half the effort.

Such fruit trees should be sprayed with good fertilization. When spraying fertilizer, the fertilizer should be fully stirred, and a good fertilizer should be used. In this way, the fruit tree can play a multiplier effect with half the effort.

Spray on the dorsal part of the leaf. Choose the right fertilizer. Select the chelated one. Guarantee the intensity of care. Maintain the right temperature and humidity. It is best to spray on a sunny day.

The fertilization technique for fruit trees is to use fertilizer wisely, and apply fertilizer in the right amount when the crops need nutrients the most. Choose root application when the fruit tree sprouts to better provide nutrients to the roots; When it is time for flowering and fruiting, foliar sprays are chosen to increase the accumulation of substances in the fruit.

When planting fruit trees, it is necessary to fertilize in time, and compound fertilizer or nitrogen fertilizer should also be chosen. Root and foliar sprays should be applied from the roots.

Fertilization should be done in mind. In winter, the temperature is low, the plant grows slowly, and most flowers are in a state of growth stagnation, and generally no fertilizer is applied; Spring and autumn are in the peak period of flower growth, roots, stems, leaves grow, flower buds differentiation, young fruit swelling, all need more fertilizer, should be appropriate more top dressing; In summer, the temperature is high, the water evaporates quickly, and it is the peak period of flower growth, so the concentration of top dressing should be small, and the number of times can be more.

When fruit trees germinate, you can choose large element foliar fertilizer nitrogen, phosphorus, potassium, the nitrogen fertilizer used in foliar fertilizer on fruit trees is mainly urea, as well as medium and trace element foliar fertilizer, fruit trees can be sprayed through the foliar spray of elemental foliar fertilizer zinc fertilizer, with the application of large element nitrogen fertilizer (urea), because fruit trees begin to germinate, long branches, long leaves, flowering, fruiting needs a large amount of nitrogen nutrients, in order to meet the normal growth and development of fruit trees in spring.

Foliar fertilizer for <> fruit trees can generally be sprayed at the young fruit stage and the full fruit stage, and can also be used when the front soil is acidic, alkaline or too salty. Or it can be used when the fruit tree encounters frost damage, which can generally be effective in relieving symptoms. Precautions: Foliar fertilizer can not be used in the full flowering period, because the flowers of the fruit tree are more sensitive and delicate at this time.

I understand. When fertilizing, you must fertilize from the roots, so as to ensure the fertility of the soil, and at the same time, you should choose the right fertilizer, pay attention to the amount of fertilizer, do not apply too much fertilizer, and do not burn the leaves.

In fact, I also have the habit of planting some plants, so I also know some tips and tricks to make plants grow better.

I still know a little, because I have planted a lot of fruit trees in my home, so when fertilizing, we must pay attention to the ratio of fertilizer to water.