G101 oil sunflower has high yield, good quality, rust resistance, drought resistance, oil yield of 40%, and water yield per mu is about 200 kg. This variety has good comprehensiveness, robust growth, neat and uniform grain filling. 1. Plot selection: Oil sunflower does not require strict soil conditions. Sand soil, sandy loam soil and saline-alkali soil can all be planted. Under conditions of watering, the land with higher fertility yields a greater extent and the economic benefit is even greater. 2, deep plowing the soil preparation, apply enough base fertilizer: oil sunflower root system developed, must deep-dump the soil, easy to root system to the next bar, plough depth of 30 cm, to fine smashing, leveling the land, breaking the clods, Combine seeds to ensure Miao Qi and Miao Quan. In combination with deep turning, 2000 kg of organic fertilizer per acre, 10 kg of ammonium sulfate, and 20 kg of superphosphate. To prevent and control the damage of underground pests, 1.5 kg of carbofuran or 3 kg of forest can be used for soil treatment per acre. 3, appropriate sowing, reasonable close planting: the growth period of the oil sunflower is about 85 days, our area is generally sowed before June 15th, about 3500 per acre left seedlings, the general spacing of 50 cm, spacing 30-40 cm . Cave sowing, 2 - 3 per hole, sowing depth of 4 cm. 4, field management: seedling height 6 - 7 centimeters when the fixed seedlings, and weeding and weeding. A second cultivator weeding occurs when the disk is present. When the seedlings grow to 7 true leaves, 10 kg of urea are applied per acre, and 5 kg of urea is applied every acre. Hydroponics controls the watering during the seedling stage, and it is not poured as much as possible, and watering is appropriate when the flowering period is dry. In addition, artificial pollination should be carried out so that the whole disk is evenly distributed inside and outside, and the entire plate is full, which is the key to ensure high yield. 5, disease prevention and pest control, timely harvest: Mu seed before sowing with 20% triadimefon seed dressing, 5 grams per kilogram of seed, seedling period can be used 1605 powder sprinkled in the seedling roots to prevent chafer damage. The back of the flower turns yellow, and the seeds are harvested as soon as they become hard and dark.
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