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针对华北高产粮区冬小麦存在大水大肥大播量的问题 ,选用旱麦莱农 92 14和莱州 32 79为试材 ,高水肥品种济麦 19号为对照 ,经过 2年试验推广证明 ,这 2个品种在干旱偏枯年和平水偏丰年灌 1～ 2次关键水 ,每公顷平均产量 776 6 .2 5 kg,比灌 4次水的对照田济麦 19号 (平均单产 6 76 5 kg) ,增产 10 0 1.2 5 kg,增产率 14 .8% ;总耗水量平均 35 85 .6 6 m3/hm2 ,水分生产率 2 .17kg/m3,耗水系数 0 .4 6 2 m3/kg,节省灌溉用水 2 75 2 .5 m3/hm2 ,节水率 6 8.6 2 %。小麦降耗增收 15 4 2 .4 5～ 3434.4元 /hm2 ,实现了节水、高产、低耗、高效农业 ,达到保护地下水资源的目的
Aiming at the problem of the large amount of large and large seeding of winter wheat in high-yielding grain-growing area in North China, the experiment was conducted with two years of experimental popularization proof The average yield per hectare was 776.62.5 kg in comparison with Tianji wheat 19 (average yield was 676.5 kg) in comparison with 4 times of water irrigation, The yield increase was 10 0 1.2 5 kg and the increase rate was 14.8%. The total water consumption was 35 85.66 m3 / hm2, the water productivity was 2.17kg / m3 and the water consumption coefficient was 0.4626 m3 / kg, saving irrigation water 2 75 2 .5 m3 / hm2, water saving rate 6 8.6 2%. Reducing wheat consumption by 15 4 2 .4 5 ~ 3434.4 yuan / hm2, to achieve the purpose of saving water, high yield, low consumption, high efficiency agriculture, to protect groundwater resources