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What are the control methods for seed-borne diseases of the three wheats?
The main seed-borne diseases of the "three wheats" are stripe disease, smut, and net blotch. To control these diseases, in addition to measures such as selecting disease-resistant varieties, crop rotation, and adjusting sowing dates, the key is to do a good job of seed treatment. Seed treatment can use the following methods: (1) Use 12.5 milliliters of 10% seed soaking agent, add 4 kg of water, and mix with 50 kg of seeds; or use 100 grams of 2% Silvacur, add 4 kg of water, and mix with 100 kg of seeds, which can control stripe disease and smut. (2) Use 150 grams of 2% Silvacur, add
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To grow strong cotton seedlings, the seedbed must be protected against five major threats
Common problems in cotton nutrient-cup seedbeds are mainly manifested as drought, waterlogging, disease, fertilizer burn, herbicide damage, and cold damage to seedlings, heat injury to seedlings, and spindly seedlings. The preventive measures are as follows: The moisture content of the cup soil should be moderate. The nutrient-cup seedbed should be located where both drainage and irrigation are convenient. The ideal moisture content of the cup soil is such that it forms a ball when squeezed by hand and breaks apart when dropped to the ground. ...
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