Method for delaying leaf falling of plum tree in autumn and winter

Abstract

The invention particularly discloses a method for delaying the leaf falling of a plum tree in autumn and winter. The method mainly comprises the following steps: (1) preparing a delayer, wherein the delayer for maiden trees comprises 25% of biogas slurry, 0.3% of monopotassium phosphate, 0.05% of spinetram and 0.2% of a high-fat membrane, and the delayer for a full-grown tree comprises 25% of biogas slurry, 0.3% of urea, 0.05% of spinetram and 0.2% of a high-fat membrane; and (2) spraying the delayer at different periods, namely, spraying the delayer for the first time after plum fruits are harvested within 10-15 days, spraying the delayer for the second time after the first-time delayer spraying for 15-20 days, and spraying the delayer for the third time after the second-time delayer spraying for 30-45 days. By adopting the method, the fertilizer and pesticide utilization rate can be increased, and the 'medicine-fertilization integration' is realized. The method shows the good interaction synergy; the fertilizer efficiency is improved by 8%-15%; the pesticide effect is improved by 22%-30%; the problem of natural mutual contact and reduction of pesticides in use with the fertilizers is overcome.

Description

technical field [0001] The invention belongs to the field of agricultural cultivation, in particular to a method for delaying autumn and winter defoliation of plum trees. Background technique [0002] Prunus belongs to the plant of the genus Prunus in the family Rosaceae. The fruit of plum is not only beautiful in appearance, fragrant and juicy, sweet and sour, but also rich in nutrients. raw material. China is one of the origins of plum. As a deciduous fruit tree with a long history of cultivation, plum is distributed in almost all provinces (autonomous regions and municipalities) in China, mainly concentrated in southern regions such as Guangdong, Guangxi, Sichuan, and Fujian. my country's plum output accounts for 48% of the world's total output, and it is the largest plum producer in the world. In recent years, the rapid development of the plum industry has led to other related industries, which account for a large proportion of the local economic development. It has no...

AI Technical Summary

Problems solved by technology

At present, there are mainly two methods of agricultural control and chemical control for the prevention and control of early leaf defoliation of fruit trees. In terms of agricultural control, measures such as removing fallen leaves, rational pruning, soil improvement, pulling out diseased plants, and rational fertilization are the main methods, which are a lot of work and have little effect; Chemical control mainly achieves the purpose of disease prevention and control through the application of various chemical pesticides. The effect is good and the effect is fast. pollution and fruit pesticide residues

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