Apple tree "confinement fertilizer" should be made up in time

Base fertilizer is the most basic and important fertilization for apple orchards, and it is related to the supply of various nutrients in the annual cycle of the fruit tree. The application of basal fertilizer in autumn should be time-sensitive. Generally speaking, September to November is the best fertilization period for "month fertilizer". Applying basal fertilizer in autumn is beneficial to delay leaf senescence, improve photosynthetic capacity of autumn leaves, and increase the accumulation of nutrients in the tree, which is extremely beneficial to the growth of the tree body, fruit yield and quality in the coming year.

The basic fertilizer applied in autumn is "gold", the basic fertilizer applied in winter is "silver", and the basic fertilizer applied in spring is "broken copper and iron." In actual production, many fruit farmers neglect to apply "month fertilizer" after picking apples, thinking that there is no need to fertilize the fruit after harvest. Some farmers only take cold protection measures and ignore "month fertilizer" because of the tight time and fear of trouble. "I think the effect of applying basic fertilizer in winter and spring is the same. In fact, if basal fertilizer is applied in winter and spring, the effect of fertilizer effect will be delayed. In spring, new shoots and fruits need a lot of nutrients to grow at the same time, and they will compete due to insufficient nutrients, which will affect the differentiation of flower buds and reduce the fruit setting rate, which will affect the fruit expansion and coloring. And sugar content. It can be seen that the application of "monthly fertilizer" must be timely.

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