论文部分内容阅读
经多年试验总结,旱作保护性耕作油菜田丰产高效栽培技术规程主要要点为前茬收获割茬高度≥15 cm,播种前地面要基本平整,油菜播种量6.38 kg/hm2,控制成株数75万~90万株/hm2,种子应选用综合抗性突出、适应性广、丰产性好的良种,并进行种子处理,适时播种;正确调整播深、肥量、肥深,杂草控制,病虫害防治,适时收获。
After many years of experiments, the key points of high-yielding and efficient cultivation techniques for dry-farming conservation rapeseed fields are that the stubble height before harvesting is ≥15 cm, the ground surface should be basically smooth before planting, the seeding rate of rapeseed is 6.38 kg / hm2, ~ 900,000 plants / hm2. Seeds should be selected with comprehensive resistance, good adaptability, high yield and good seed, and seed treatment, timely sowing; sowing depth, fertilizer, fat, weed control, pest and disease control , Timely harvest.