1. Variety Selection and Seed Treatment 1. Variety selection The varieties with high yield and strong disease resistance are mainly Gan Kwai No.2, Clam Clam, Black Lao Gill, Black Bay and so on. 2. Seed treatment (1) 10 days before sowing for germination test; (2) 4-5 days before sowing for artificial selection of seeds and drying for 2-3 days. Second, the selection of sites, elections, site preparation, selection of a selection of deep plow layer, high fertility, water and fertilizer and well-drained plots. 2. The selection of wheat, corn, potato pods and rotation for five to seven years will be preferred. 3. Site preparation (1) Autumn turning up ridge: cultivating depth 20-23cm, reaching no-tillage, no standing, no waste, applying fertilizer or green fertilizer ridging, timely suppression after cultivating; (2) autumn riddle : In the early spring when defrosting 14cm, timely smashing and cracking; (3) deep loose ridge: first Songyuan ditch, then break the original ridge Taiwan synthesis of new ridge, timely suppression. 3. Fertilization 1. Farmers apply 30-45 cubic meters of fertile high-quality agricultural fertilizer per hectare combined with soil preparation. 2. Fertilizer application standards According to the People's Republic of China a-level green food standard fertilization. (1) Nitrogen fertilizer: 100-150kg urea per hectare is topdressed during sunflower budding stage; (2) Phosphorus fertilizer: 60-75kg of phosphorus pentaoxide per hectare combined with soil preparation as base fertilizer or base fertilizer; (3) Potash fertilizer: per hectare Fertilizer 35-50kg as base fertilizer or seed fertilizer. Fourth, sowing 1, sowing time In order to escape the rainy peak during the solid period, reduce the incidence of Sclerotinia and reduce the harm, generally sowing on May 10-15. 2. The sowing method is manual on-demand or mechanical sowing. The sowing rate is 12.5-15.0 kg per hectare. Density of 7070-75cm, hectare Baomian 19000-20000 strains. V. Field management 1. Check field Tianchao after the emergence of seedlings in a timely manner, found that when the lack of seedlings broken, immediately directed to sit on behalf of the soil planting. 2, and time Dingmiao a true leaf time seedlings, two pairs of true leaves when the Dingmiao. 3, after the emergence of the shovel before the loose or shovel shovel a plow. 4. Disease and Pest Control (1) Prevention and Control of Helianthus Annuus: When T. argentis blooms, there are 90 Trichogramma per hectare and evenly distributed in 2 phases at intervals of 3 days. The bee card is pinned to the back of the blade; (2) ) Prevention and control of sclerotinia: Comprehensive prevention and control of biological, chemical, and agricultural measures based on the degree of illness. 5. Auxiliary pollination and release of bees, 3 boxes of bee per hectare or artificial pollination. Six, harvest stems, discs turn yellow-brown on the back, ray flowers withered, cylindrical flowers withered, seed shell harden, the true color harvest, threshing drying. When the moisture content is less than 12% and the net degree is 95%, it is stored or sold in storage.