Rice diseases and insect pests: what are the rice diseases and insect pests in August?
What are the diseases and insect pests of rice in August? Please introduce and guide how to control rice diseases and insect pests in August. The key control objects are rice false smut, panicle neck blast and bacterial leaf spot, as well as rice planthopper and rice leaf roller. Can refer to the following methods for prevention and control: 1, in the week before the rice break (when packing large bags), you can choose 12% Jinggang ·phenyl ether methyl wettable powder 30g / mu, or 20% well ·Ene ·tricyclazole wettable powder, 15g / mu, add 40% ~ 48% chlorpyrifos (Lesben, Tongshun) EC 100 ml per mu, mixed with water for spray control. The medicine was used once every 7 to 10 days and twice in a row. 2. In the area where bacterial leaf spot occurs, 50% chlorobromoisocyanuric acid 20 grams of 30 grams mixed with water 15 kilograms, or 20% thiazolyl zinc 25 grams per mu with 15 kilograms of water for spray control. Click to get more rice planting techniques click to get more food crop planting techniques
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Rice diseases and insect pests: what are the diseases and insect pests in the later stage of rice? How to prevent and cure it?
What are the diseases and insect pests in the later stage of rice? How to prevent and cure it? Please introduce in detail the main diseases and insect pests in the later stage of rice: 1. Sheath blight: the recent increase in sheath blight has accelerated, with an average disease rate of 13.7% and a diseased plant rate of 3.3%, which is significantly faster than that of the previous period, especially in Wuyunjing series varieties. sheath blight is generally serious.
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Corn planting technology: what should be paid attention to in the middle and later period of summer corn?
What should be paid attention to in the middle and later period of summer corn? Please give the introduction of summer corn in the middle and later period to pay attention to the following points for reference: fertilization (1) ear fertilizer. Generally, nitrogen fertilizer is re-applied in the big trumpet mouth period, accounting for about 50% of the total topdressing amount, and standard nitrogen fertilizer is applied 30-40 kg per mu. (2) grain fertilizer. Generally account for 10% of the total amount of topdressing.
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