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海河低平原类型区,水资源不足是农作物产量的主要限制因子。该项综合技术通过“作物配水单元化、工程输水网络化与定额灌溉制度化”在高效用水途径上取得突破。灌溉定额减少300～450m~3/hm~2。单井灌溉控制面积由14～20hm~2扩大到30～4Ohm~2。单位肥料生产率提高9.60％～20.25％;棉粮轮作,棉花枯、黄萎病株田率由33.7O％～67.91％降低到零星发病,粮食作物适应性杂草显著减少并持续效果3年,作物产量提高11.98％～30.00％。小麦和夏谷两熟、棉花一熟水分利用效率分别由11.25、4.8 kg/(mm·hm~2),上升到15.15、5.85kg/(mm·hm~2),耕地产量分别达到12 150 kg/hm~2和3729 kg/hm~2。
Haihe low plain type area, lack of water resources is the main limiting factor of crop yield. The integrated technology has made breakthroughs in the efficient use of water through the “unitization of crop water distribution, network construction of water diversion and fixed irrigation”. Irrigation quotas decreased by 300 ~ 450m ~ 3 / hm ~ 2. The control area of single-well irrigation increased from 14 ~ 20hm ~ 2 to 30 ~ 4Ohm ~ 2. Unit fertilizer productivity increased by 9.60% ~ 20.25%; cotton crop rotation, cotton withered, Verticillium wilt rate reduced from 33.7O% ~ 67.91% to sporadic disease, crop significantly reduced adaptive weeds and continued to effect for 3 years, crop Output increased 11.98% ~ 30.00%. The water use efficiency of first-ripe cotton was increased from 11.25 and 4.8 kg / (mm · hm -2) to 15.15 and 5.85 kg / (mm · hm -2), respectively. The cultivated land output reached 12 150 kg / hm ~ 2 and 3729 kg / hm ~ 2.