The best time and scientific method for fertilization in autumn
Everyone knows that no matter what they do, there is a foundation to carry out the next step, so the growth of crops is also the same. Reasonable fertilization is to lay a foundation for the high yield of crops. Only by laying a good foundation for crops can we produce high yields. The best time and scientific method for finishing the autumn fertilization!
At present, a large part of orchards are characterized by weak trees, low yields and poor quality, which have a lot to do with this one-sided understanding and propaganda. It should be said that fruit cultivation is a systematic project. As we often say, pruning is the key, pests and diseases are guaranteed, fertilization is the foundation, leaving the foundation of fertilization, first of all, there is no yield, pruning and pest control will lose the meaning of existence. . So paying attention to fertilization and how to apply fertilization has become an important task.
First, we must adhere to balanced fertilization and provide sufficient nutrient supply to the ground.
The nutrient status and tree potential of the tree, the load of the tree, and the number of fruits should be basically balanced. Insufficient supply of underground nutrients, the tree will inevitably weaken, the consequences are that the shape is not flower, or only flowering does not take fruit, or the fruit is small, the taste is poor, the shape is not a commodity; the second is that the tree is weak and does not resist disease, the life of the tree Short, in turn, the underground nutrients are too much, the tree body is anti-wang, and it is difficult to form flower buds. If the load is too large and the supply of underground nutrients is insufficient, it will easily form a large and small year. If the load is insufficient and the underground investment is increased, it will cause the situation to be overwhelmed and the funds will be wasted. The underground nutrients in the soil should be balanced. The distribution of a large number of elements and various trace elements in the soil is related to the soil type. The soil pH and the different parent materials are different.
When fruit farmers are applying fertilizer, they must first figure out what is missing in their orchard. If they are too diminished, they will be able to show up on the tree: the iron leaf is yellow, and the zinc deficiency leaves become smaller, harder and change. Brittle, nitrogen-deficient leaves are light and thin. When fertilizing, the ratio of various fertilizer elements should be appropriate, that is, the formula we often say, not to apply a certain fertilizer. This is because:
First, the status of various nutrients in the tree is equally important and irreplaceable. The theory of wooden barrels tells us that the biggest impact on water storage does not depend on your longest piece, but the shortest piece. This principle is no exception in fertilization. Even if you have a lot of a lot of elements, and lack of a trace element, it will affect your fruit tree growth and results;
Second, excessive application of certain fertilizers will also produce antagonism. Partial application of certain fertilizers will also have side effects on nutrient utilization. The most effective and simple way to balance fertilization is to apply more organic fertilizers and apply compound fertilizers. Organic fertilizer can also promote the activity of soil microbes, improve the soil nutrient availability, and the inorganic fertilizer is quick and short-lived. Only by scientific equipment and organic and inorganic combination can we achieve the goal of balanced fertilization.
Second, the time, method and fertilization amount of fertilization should be scientific
The best time for fertilization in early autumn is from late August to September. The underground temperature and humidity are suitable. Plus the fruit trees have stopped growing, the new shoots have no growth, and the fruits are in urgent need of nutrients. It is the rapid expansion and coloring period, so Fertilizing in winter and spring.
Although some roots are broken at this time, this is also called root-pruning. During this period, the roots heal faster, and there are more capillary roots. The fertilizer effect is double-crossed for two years, which is conducive to rapid supplementation and reserve of nutrients. These reserve nutrients are germinated in the next spring. The basis of flowering and fruit setting is guaranteed. In addition, according to the fruit tree expansion period, the variety is different, the rootstock combination is different, the planting density is different, the fertilizer application amount and time are also different. The fruit of the early and middle-maturing varieties is short in the load period of the tree, and the emptying time is long after the fruit picking. Inevitably less, more accumulation, the amount of fertilizer should be lower than that of late-maturing varieties; dwarf and dense planting, especially high-density planting, the root area in the soil is relatively small, and the absorption of nutrients is prone to deficit, so the fertilization should be thinner. Planting more; especially in thinned orchards, more fertilization is needed.
In addition, it should be determined according to the actual needs of the tree, and the correct judgment of the nutrient status of the tree is the basis of fertilization. The tree potential can reflect the profit and loss of soil nutrient to a certain extent, the tree potential is strong, the tree potential is weak. Big can be applied. The organic fertilizer deficiency can be used to completely replace the farmer's fertilizer, Mengding base fertilizer or Hualong bio-organic fertilizer.
Fertilization should be deep or shallow, and the debate is different in recent years, but I think that the application of organic fertilizer should be slightly deeper, the phosphorus and potassium fertilizer should be slightly deeper, the base fertilizer should be deeper in autumn, and the dryland orchard should be deep. In short, the crop cultivation and fertilization must grasp the time. , methods and fertilization amount, the best time and scientific method of fertilization in autumn, I hope to help you!
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