论文部分内容阅读
根据小麦生育期的需水特点,适当减少灌水次数和灌水量,通过经济合理的用水,在省水的前提下力争较好的收成.研究冬小麦的耐旱生理指标,正是想从生理的角度探索干旱同小麦生长发育及其产量的关系,找出对产量影响不大的小麦耐旱生理指标与土壤水分指标的下限值,为干旱、半干旱地区经济用水的灌溉制度提供理论依据.
According to the characteristic of water demand during the growth period of wheat, it is necessary to reduce the number of irrigation and the amount of irrigation, and to strive for a better harvest under the premise of saving water through economical and rational use of water.Studying the drought-resistant physiological index of winter wheat is from the physiological point of view To explore the relationship between drought and wheat growth and yield and to find out the lower limit of drought tolerance physiological index and soil moisture index, which has little effect on the yield, provide a theoretical basis for the irrigation system of economic water in arid and semi-arid areas.