High-yield cultivation techniques of sunflower
The main technical content: 1, selection of high-yield, high-oil, disease-resistant varieties of insects, such as white miscellaneous 2, white miscellaneous 3, Changling Dakar, Hungary 4 and other varieties. 2. Seed treatment, remove empty grains, impurities, ensure the purity and cleanliness of seeds, and increase the germination rate. 3, autumn turn, fine soil preparation; increase agricultural fertilizer, deep fertilizer. 4, timely late broadcast, sowing on May 10 to improve the quality of sowing. 5. Strengthen field management, apply herbicides or artificial weeding, timely check seedlings and make up seedlings, release bee during pollination period or artificially assisted pollination, control underground pests at seedling stage, and prevent bollworm and beet leaf moth from bud stage to maturity stage. 6, harvest, when the back of the Kwai Pan yellow, loquat leaves become brown, the grain becomes hard, you can harvest.