Method for comprehensively preventing and treating fusarium wilt of Chinese yam through pesticide-based bud treatment and soil improvement

Abstract

The invention discloses a method for preventing and treating fusarium wilt of Chinese yam through pesticide-based bud treatment and soil improvement. The fusarium wilt of Chinese yam is one of main diseases severely influencing Chinese yam production; rhizomes of Chinese yams are mainly damaged, the Chinese yams die due to withering, and fatal influences are caused to high yield and high efficiency of Chinese yam planting; and at present, a common method for preventing and treating the fusarium wilt of Chinese yam is mainly a root irrigation method, the prevention and treatment effect is poor,labor and time are wasted, and pesticide residues are easily caused to influence agricultural product quality. According to the patent, a comprehensive method of pesticide-based bud treatment and soil improvement is adopted to prevent and treat the fusarium wilt of Chinese yam. 60g of 50% carbendazim, 40g of 72% metalaxyl and 1g of 98% diethyl aminoethyl hexanoate are taken as a specific pesticide formula to carry out bud treatment on Chinese yam plants before Chinese yam planting. 1000 kg of a commercial organic fertilizer or 2500 kg of decomposed farmyard manure is applied per mu during planting, and 80 kg of a 15-15-15 sulfur-based compound fertilizer is applied as a base fertilizer so as to adjust the pH value of soil, increase soil organic carbon and balance soil nutrients. The method for preventing and treating the fusarium wilt of Chinese yam by combining pesticide-based bud treatment and soil improvement is simple and easy to implement, stable and durable in prevention and treatment effect and remarkable in yield-increasing effect.

Description

technical field [0001] The patent of the invention belongs to the field of agricultural planting, and the patent code is A01C; it specifically relates to a method for treating yam seeds with budding agents and combining soil improvement to prevent and treat yam wilt. Background technique [0002] Yam wilt, commonly known as Ayahuasca, sometimes vividly called yam pharyngitis or esophageal cancer, is one of the important diseases affecting yam production; it mainly damages the stem base and underground tubers, and fusiform wet rot appears at the stem base in the early stage Brown spots, the lesion spreads to the surrounding area in the later stage, the entire epidermis of the stem base rots, causing the leaves above the ground to gradually yellow and fall off, the vines die quickly, the stem base is cut open, and the diseased part turns brown; the tuber is infected, and round lenticels are formed. Irregular dark brown lesions, the fine roots on the lenticels and the inside of...

AI Technical Summary

Problems solved by technology

[0004] The method of preventing and treating Fusarium wilt of yam is usually the root irrigation method, for example, use 98% hymexazol (chemical name: 3-hydroxy-5-methylisoxazole) emulsion 1000 times for root irrigation 2-3 times per 667 square meters at the seedling stage; In the early stage of the onset of yam wilt, use 50% chlorbendazim (chemical name: chlorobromoisocyanuric acid) 1000 times, and 1.5% bacterium (chemical name: 1,2 benzisothiazolin-3-one) 1000 times Beihe 20% Jinggangmycin (chemical name: N-[(1S)-(1,4,6 / 5)-3-carbonylmethyl-4,5,6-tricarbonyl-2-cyclohexenyl] [O-β-D-Glucopyranosyl-(1,3)]-1S-(1,2,4 / 3,5)-2,3,4-tricarbonyl-5-carbonylmethylcyclohexylamine ) powder 500 times the mixed solution twice, 50g per plant, and then irrigate the second time every 10 days; fusarium wilt is a disease of yam rhizomes, the disease mainly damages the rhizomes of yams, usually from the ground. The control effect is very poor; the research of Barak et al. shows that the old roots and stems contain more lignin, and the retention effect on pesticides is stronger than that of young plants; many literatures also show that the so-called two-way conduction compounds are usually still Mainly upward conduction; the most important thing is to prevent and control yam wilt by root irrigation method, which will lead to pesticide residues in yam rhizomes and increase the safety risk of agricultural products

[0005] This patent adopts the concept of prevention and treatment of Fusarium wilt of yam, takes Hongmiao yam in Nanzheng County, Shaanxi Province as the research object, and popularizes and applies it to other yam varieties; Hongmiao yam is an excellent local variety in the Qinba Mountain area, and its planting history is long. Both medicine and food, dry noodles are refreshing, easy to cook, not disperse and not rotten, good market reputation, broad development prospects; this patent uses the conduction mode of pesticides in plants and the biological principle of pesticide conduction, and treats yam seeds with budding agents Combined with the method of soil comprehensive improvement, through the comparative analysis of the field test results, it is proved that this method can effectively prevent and treat the occurrence of yam wilt, and the control effect can reach 81.7%, and the control effect is stable and lasts for a long time; The method for the comprehensive prevention and treatment of Fusarium wilt by the yam bud medicament treatment and soil improvement with similar and identical patents

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