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三麦返青后开始从营养生长为主的阶段轉入营养生长与生殖生长并重的阶段,需水量日益增大。据徐淮地区多年研究結果,越冬期需水强度每日仅0.6毫米左右;返青至拔节期陡增至2毫米;抽穗开花則迅即上升到3毫米以上。因此加强三麦的春季水肥管理,滿足水肥需要,对于改善土壤营养状况、增强根系吸收能力、巩固有效分蘖、提高叶面积指数、促进小穗分化与亢进各項生
After the beginning of the three wheat regreening from the vegetative growth stage into the vegetative and reproductive growth of both stages, the water demand is increasing. According to Xuhuai regional research results for many years, the winter water demand intensity of only 0.6 milligrams per day; turn green to jointing steeply increased to 2 millimeters; heading flowering immediately rose to 3 millimeters or more. Therefore, to strengthen the three wheat spring water and fertilizer management, to meet the needs of water and fertilizer, for improving soil nutrient status, enhance the ability of root absorption, consolidate effective tillering, increase leaf area index, promote spikelet differentiation and hyperthyroidism