When is the most appropriate time to use soil conditioners for fruit trees?

Soil conditioner refers to rich in organic matter, humic acid.

and other organic raw materials, supplemented by biological agents, medium and trace elements.

or other soil activators scientifically formulated.

It has the functions of water retention, fertilizer retention and enhancement of root permeability, and plays an extremely important role in regulating soil acid-base balance and improving soil stubble diseases.

Especially for today's era of chemical fertilizers, due to excessive dependence on chemical fertilizers, the negative impact on the soil has reached the point where it is incurable, which is one of the main reasons for the popularity of soil conditioners in the past two years.

So, when is a soil conditioner better for fruit trees? This question is more timely, because autumn is the best time to condition the soil.

Autumn conditioning the soil, is and fruit trees autumn confinement.

Fertilizer has a relationship, as the saying goes, autumn gold and winter silver, every year to this season, some fruit trees have basically been picked, hard work for a year of tree body, has been extremely weak, how to replenish the strength of fruit trees, and for the next year's growth fruit reserve nutrition? This is the importance of confinement fertilizer.

As we all know, the confinement fertilizer of fruit trees is mainly organic fertilizer, why? Because this stage is a little supplemental nutrition, mainly for the next year to reserve nutrients, the choice of fast-acting fertilizer is not appropriate, so to organic fertilizer as the mainstay, chemical fertilizer as a supplement, medium and trace elements to keep up with the fertilization principle.

There is also a purpose of increasing organic fertilizer, that is, to improve the soil, and many of today's organic fertilizers contain biological agents, such as Bacillus subtilis.

It has a very positive effect on increasing the beneficial bacteria in the soil, eliminating diseases in the soil and activating the soil.

Biological inoculants, especially when used with organic matter, can exert their unique effects.

In autumn and winter, soil conditioning is taken during the dormant or semi-dormant period of fruit trees, such as letting fruit trees eat and drink enough, sleep well, and wait for the next spring when the flowers bloom and wake up, and they can grow vigorously again.

Flowering time, this time can achieve the best results, it is best to use this time, other time seems to be less effective.

You can do it when they have fruits, because the fruits are relatively large at this time, and the fruits are very sweet and very good to absorb.

It is best to use the conditioner in the spring or in the morning of the spring, and it can also increase the yield.

The best time is around 11 noon, when this kind of soil conditioning can be carried out, and this conditioner must be sprayed very evenly to achieve very good results, and some of the bacteria of the fruit trees can be killed.

It is better to apply soil conditioner at the time of flowering, which is a good time to bear fruit, so if you want the fruit tree to bear more fruit, you must not miss this time.

If you use a soil conditioner, you should sprinkle it once after thawing in spring, use 200 300 pounds of ground per mu and then row it again to mix the soil with natural gas, and then water it for the second time to find ripe varieties, and on July 12, the late ripening varieties of Red Fuji and so on in early August silly things per mu are about 200 250 pounds, and then watered.

The soil supports the growth of fruit trees, providing water and mineral nutrients to the trees. Therefore, orchard fertilization must understand the physical, chemical and biological properties of the soil, so as to formulate a fertilization plan according to local conditions.

The nutrient status of soil in China is generally low in organic matter and nitrogen, followed by phosphorus and potassium. In recent years, with the increase of fertilizer application and the increase of yield per unit area, the area of phosphorus deficiency in the north and potassium deficiency in the south has expanded. Except for a small amount of nitrogen in the soil, most of it is in an organic state.

The higher the soil organic matter content, the higher the nitrogen content, and in general, the total soil nitrogen content is 1 20 1 10 of the organic matter content. It is generally considered that soil organic matter is more than 1%, 1% is moderate, and less than 1% is low. The content of soil organic matter in China is generally low, except for the high content of organic matter and nitrogen in the black soil of Northeast China, the content of organic matter and nitrogen in other regions is at a low level, especially in the North China Plain and the Loess Plateau.

The total phosphorus content of soil cultivated layer in various regions of China is generally in. The phosphorus content of the black soil in Northeast China, Ningxia, Xinjiang, Gansu and other deserts was relatively high, which was up to and , respectively, and the phosphorus content in other regions was low.

The range of soil potassium content in various regions of China is 40 45 mg kg, and the total potassium content of the main soil layers in China is gradually increasing from east to west and from south to north.

The trace elements required by plants are mainly in the soil-forming parent material, and the soil trace element content formed by different soil-forming parent materials is different. For example, the alkaline soil formed by the loess parent material in the north may be deficient in iron, while the acidic soil in the south is generally not deficient in iron, and the calcareous soil is deficient in zinc and manganese. Northwest and North China, including the North China Plain and the Loess Plateau, may be iron-deficient, zinc-deficient, and molybdenum deficient areas.

The policy of the development of China's modern fruit tree industry is "up the mountain and down the beach", which determines that the vast majority of fruit trees are planted in mountainous areas, hills, beaches and saline-alkali land. These areas generally have poor soil, poor structure and low organic matter content, which is not conducive to the growth and development of fruit trees. Therefore, the physical and chemical properties of the soil should be improved to harmonize the water, fertilizer, gas and heat in the soil.

Orchard soil improvement mainly includes deep maturation, thickening of soil layer, sand panning for soil change, soil cultivation and sand mixing, drainage and alkali washing of low-lying saline-alkali land, and application of organic matter and lime in acidic soil.

China has a vast territory and a wide variety of poor soils, so it is very important to fully develop and utilize land resources, take economic and effective soil improvement measures, and establish high-quality orchards to prolong the life of fruit trees and improve economic benefits.