摘要
作物根区无压地下灌溉技术是一个正在研究开发的新的节水灌溉技术。通过在温室大棚种植黄瓜、番茄,采用不同供水压力和不同灌溉方式试验,研究分析了根区无压地下灌溉对作物根区土壤水分、耗水量、产量和作物品质等指标的影响。研究表明该技术能够满足黄瓜和番茄需水量要求;与传统沟灌相比能够节约灌溉水量30%以上;它并不降低作物产量,反而提高了水分利用率和水分生产率,并使黄瓜和番茄作物品质得到了显著改善。
The new technique of Non-pressure Subsurface Drip Irrigation, a way to control irrigation water in crop roots zone, is developed. The paper studies the impact relationship between soil moisture movement in crop roots zone, crop water requirement and yield and quality of cucumber and tomato under the condition of Non-pressure Irrigation in greenhouse with different irrigation level. The results indicate that the new technique can be used in cucumber and tomato and irrigation water can be saved by 30% compared to furrow irrigation. The trial also indicates that crop outcome is not influenced, but quality of cucumber and tomato is improved and water application efficiency is added.
出处
《灌溉排水学报》
CSCD
北大核心
2005年第2期5-9,共5页
Journal of Irrigation and Drainage
基金
国家自然科学基金项目(50479051)
国家重大科技专项(2002AA2Z4031)
