Fertilization techniques for different growth stages of fruit trees

During the growth cycle, fruit trees undergo metabolic processes such as growth, initial results, fruit growth, senescence and renewal. The physiological characteristics and nutrient requirements of tree age at different stages are different.


The young fruit trees mainly develop crowns and enlarge roots to fully accumulate tree nutrients. During this period, the amount of growth was not large, and the amount of fertilizer needed was not much, but it was very sensitive to the fertilizer reaction. If malnutrition is at this stage, it will be difficult to make up even if it is doubled later. Applying enough phosphate fertilizer, proper application of nitrogen fertilizer and potassium fertilizer is one of the key measures for early fruiting and early yielding of fruit trees.


If there is no result or enters the initial results period, due to the continuous expansion of the root crown, it is necessary to maintain a relatively strong vegetative growth, and nitrogen fertilizer should account for a large proportion. During this period, it is necessary to continue to expand the canopy and promote flower bud differentiation. Therefore, phosphorus and potassium fertilizer should be added on the basis of nitrogen fertilizer application.


As a result, adult trees in the prime period, the main purpose of fertilization is high quality and high yield, and enhance the value of commodities. Because the results are more and the flower bud differentiation in successive years, the proportion of phosphorus, potassium and calcium fertilizer should be increased. Therefore, fertilization should pay attention to the combination of nitrogen, phosphorus, potassium and calcium fertilizer, especially the proportion of potassium fertilizer.


After the fruiting period, the tree gradually ages. In the old age, more nitrogen fertilizer should be applied. The proportion of nitrogen fertilizer should be the same as that of the young tree to promote renewal and rejuvenation.


It can be seen that there are different ratios of fertilizers in different growth stages of fruit trees. Only proper fertilization can make fruit trees grow vigorously and achieve high quality and high yield.

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