干湿变化与作物补偿效应规律研究

干湿变化是作物生产的水分环境,利用植物旱后复水所产生的补偿效应是农业抗旱节水的新途径。论述了农业干湿变化类型和补偿效应的内涵、干湿变化对作物生态补偿和生长发育阶段间补偿及生理代谢功能间补偿性。通过土壤大气湿度组合的玉米实验,研究了大气湿度提高补偿土壤干旱作物生长与水分利用效应的规律。

Drought-wet change is a kind of water environment in crop production process. To use compensative effect of crops, caused by supplying water after drought, is a new way for agricul-tural drought resistance and water saving. Based on the types of drought-wet change and the meaning of the compensative effect, the compensative effects in crops, different growing stages of crops, and physilogical capacity of the metabolism are studied. According to the experimental re-sults of maize under moisture change of soi...