摘要
对不同地面灌水技术进行优化组合应用，根据全年作物连作的需水特点实施调亏灌溉使土壤水分消长过程在节水高产调控范围内，提高了水分效应，小麦和棉花水分生产效率达１．５３ｋｇ／ｍ３和０．４１ｋｇ／ｍ３的较高水平。同时还对其节水高产机理进行了探讨，为节水高产的地面灌水技术优化组合应用提供了科学依据。
Based on the crop water requirement characteristics throughout the year, the soil moisture was regulated and maintained to the suitable range for water saving and yield raising by measures of combining optimally various surface irrigation systems and carrying out regulated deficit irrigation in practice. Results showed that water use efficiency was raised to 1.53 kg/m 3 and 0.41 kg/m 3 for wheat and cotton respectively. The mechanisms of water saving and yield raising of the optimal combination of surface irrigation techniques also was discussed.
出处
《灌溉排水》
CSCD
1998年第4期11-15,共5页
Irrigation and Drainage
关键词
地面灌水技术
优化组合
节水高产
生理生态效应
surface irrigation technique optimal combination water saving and yield raising ecological and physiological effects
