Yellowing of yellow wheat should be prevented and cured early in returning green period
Recently, some people have complained of the yellowing of the wheat during the turn of the Qing dynasty, or even the death of the entire crop. They are worried that this year's wheat production will have a greater impact. The reporter interviewed Li Shimin, wheat expert of the Municipal Academy of Agricultural Sciences on the above-mentioned issues. Li Shimin said that the reason for the recent yellowing of wheat in our city can be mainly attributed to two types: yellowing caused by wheat yellow mosaic virus disease, accounting for approximately 80%; and spider mite damage accounts for 10%. Wheat yellow mosaic virus disease mainly manifests itself in the turning green stage of wheat. Yellow wheat shows patchy, strip-like distribution in the field, and sometimes yellow spots on one site and adjacent blocks are normal. The impact on wheat yield is mainly reflected in the number of effective panicles. cut back. After the red spider damages, the old leaves of wheat are whitened and then die. In addition, some wheat seedlings appear yellow because of their high density, prosperous growth, and defertilization. He suggested that the yellowing of wheat caused by different reasons should be taken as early as possible to reduce losses. Firstly, all yellowed plots should be topdressed with 5 to 10 kilograms of urea per mu in order to promote growth and enhance resistance; second is to control both pests and diseases as early as possible. Sites with serious damage to yellow mosaic virus disease should be sprayed with antiviral agents + brassinolide + potassium dihydrogen phosphate to inhibit the virus, enhance resistance and promote growth. The red spiders in heavy plots sprayed with 1.8% avermectin EC 20ml or 73% acetylene EC 50ml per acre, and the spray volume of MU was not less than 30 kg. It was possible to add foliar fertilizer while killing red spiders. Add nutrients. For yellow wheat fields caused by excessive density and other reasons, it is only necessary to strengthen field management in a timely manner. Mushrooms In Jar Marinated,Marinated Nameko Mushroom Tin,Canned Whole Mushroom,Mushroom In Tins ZHANGZHOU TAN CO. LTD. , https://www.zztancan.com