Papaya is a kind of economic crop with relatively high economic value. In the process of planting, there must be strict requirements for fertilization. Papaya has a large demand for a large number of elements and trace elements. Pay attention to fertilization techniques during planting. As a result of the annual flowering of papaya, the amount of nutrients required for large amounts and trace elements must be sufficient. In order to ensure the nutrients needed for seed development, attention should be paid to the application of phosphorus and potassium fertilizers.
At present, the types of fertilizers applied in papaya gardens in China mainly include manure, manure and other organic fertilizers, monomer fertilizers, compound fertilizers and green manure. For papayas, topdressing should be based on actual needs, and young trees should adopt annular grooves. The result tree is applied by a ditch or a ditch. The application of organic fertilizer is conducive to the formation and maintenance of soil aggregate structure, and can improve the soil's ability to retain fertilizer and water storage.
First, the growth-promoting fertilizer begins to promote thinning of fertilizer 10-15 days after planting, and then fertilizes once every 10-15 days, mainly based on quick-acting fertilizer.
Second, the early flowering and early-maturing varieties of 24-26 leaves are buds (45-50 days). Before and after the buds, they should apply heavy fertilizer in time for flower bud formation. Nitrogen is still the main choice, and appropriate application of phosphorus and potassium fertilizer.
Third, strong fruit fertilizer into the flowering fruit setting period, to increase the weight of fertilizer. In June, papayas with fruit-bearing weights were applied once a month from June to October, requiring higher levels of nitrogen, phosphorus and potassium. In August, attention should also be paid to adding organic fertilizer to improve fruit quality.
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