Foliar fertilizer for improving powdery mildew resistance of wheat

Abstract

The present invention relates to a foliar fertilizer for improving the powdery mildew resistance of wheat, wherein the foliar fertilizer comprises, by weight, 20-25 parts of fermented cassava residue,20-30 parts of Radix Isatidis powder, 10-15 parts of ammonium bicarbonate, 5-10 parts of Pandanus tectorius, 5-10 parts of fulvic acid, 1-2 parts of calcium superphosphate, 1-2 parts of chitin, 2-6 parts of potassium dihydrogen phosphate, 0.5-1 parts of trace element, 0.2-0.5 part of diethyl aminoethyl hexanoate, 1-2 parts of a compound microbial agent, 0.4-0.6 part of a water-retaining slow release agent, and 0.5-1 part of calcium selenite. According to the present invention, the foliar fertilizer can improve the powdery mildew resistance of wheat, has advantages of good permeability, good water absorption and good water retention, and further can increase the fertilizer utilization rate and promote the wheat growth.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a foliar fertilizer for improving wheat powdery mildew resistance. Background technique [0002] Wheat powdery mildew is one of the important wheat diseases caused by powdery mildew graminearum, which can manifest symptoms throughout the wheat growth period. The pathogen can infect the aboveground organs of wheat plants, but mainly the leaves and leaf sheaths. After the wheat leaves are infected, the respiration intensity increases and the photosynthetic efficiency decreases, resulting in a decrease in dry matter accumulation. Mildly diseased fields reduce production by 5% to 10%. Field production was reduced by more than 20%. Wheat powdery mildew is one of the three major diseases that occur widely and seriously in the world. In recent years, it has occurred and prevailed in nearly half of the wheat fields in China, especially in the Huanghuai Plain. [0003] The...

AI Technical Summary

Problems solved by technology

Due to the long-term and large-scale use of chemical agents, on the one hand, the resistance of pathogenic bacteria has increased year by year; on the other hand, as issues such as pesticide residues, food safety, and environmental ecological safety have received more and more attention, the disadvantages of chemical agent control have become increasingly prominent

Secondly, the genetic basis of Chinese wheat varieties is relatively narrow, and the breeding process of disease-resistant varieties is slow. The disease resistance of existing resistant varieties has been gradually lost due to long-term use, and the damage of powdery mildew has become increasingly serious in recent years.