| The experiment was conducted in Ledou County,Qinghai Province to study the effects of water-saving irrigation with catchment water on capsicum in greenhouse on mountainous dryland.The results indicated: when the soil moisture in the range of roots was kept within 60%~80% of field capacity by supplementary irrigation,the yields and benefits of capsicum in greenhouse were the best;the optimal irrigation style was the irrigation through large and small ditches alternatively;the key time of supplementary irrigation was the procreation stage after 10 d of flowering. |