Fruit tree fertilization in autumn is very important

Many experts say that fruit trees are fertilized, and the fertilization effect of fruit trees in each season is compared to "autumn application of gold, winter application of silver, spring fertilization is rotten iron." The same input, the same fertilizer, the effect of fertilizing time is very different. From the end of August to September, the autumn shoots are long, which is the third growth peak of the roots of fruit trees. With the gradual decrease of temperature, the increase of autumn rain, the proliferation of microorganisms will accelerate, and the roots of fruit trees will create a suitable growth environment. . From late August to September, it is also the flower bud differentiation stage of fruit trees. Fruit enlargement also requires a lot of nutrients. Insufficient fertilizer in this period will lead to the incomplete flower bud differentiation. It seems to be a flower bud in the next year, but it is a leaf bud after flowering, so fertilization in autumn is very important. In autumn, the amount of fertilizer applied should account for 60% of the annual fertilization amount, which is the key fertilizer to solve the problem of years.

Fertilization in autumn should be based on organic fertilizer, supplemented by phosphorus and potassium fertilizer. If a large amount of nitrogen fertilizer is added, it will stimulate the growth of fruit trees, weaken the ability of fruit trees to store nutrients, so that fruit trees can not fall normally, and increase the chance of rot disease on the tree. The addition of organic fertilizer can enhance the ability of trees to store nutrients and lay a solid foundation for flower bud differentiation and fruit expansion.

Inspired by the "cask principle", the fruit tree absorbs the amount of nutrients, like a bucket with different heights of wood, a large number of elements are "long board", trace elements are "short boards", the length of the board determines the wood The volume of water in the barrel. When a large number of elements increase, the amount of medium and trace elements will also increase, so that the fruit trees can maximize their production potential. If a large number of elements "long board" increase, the trace element "short board" does not increase, and the volume of the bucket can only be determined by the trace element "short board". In order to maximize the potential for fruit trees, organic fertilizers must be added to supplement trace elements.

In addition to nitrogen, phosphorus and potassium, organic fertilizer also contains trace elements such as boron, zinc, manganese, molybdenum, copper and iron. The organic fertilizer contains more comprehensive nutrients and stable fertilizer efficiency, which can last for a long time. The fertilizer effect is solved, and the shortcomings of the inorganic fertilizer component are solved. Various organic acids in organic fertilizer combine with calcium and magnesium to form stable complexes, which can reduce the fixation of mineral nutrition. After the organic fertilizer is applied to the soil, the soil structure can be improved, and the soil water, fertilizer, gas and heat conditions can be adjusted, which is beneficial to the healthy growth of the fruit trees. Adding organic fertilizer can meet the needs of fruit trees for various nutrients. Therefore, fertilization of organic fertilizer in autumn can not be lacking.

Author: either Zansheng
Source: Henan Science and Technology News
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