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夏玉米是豫东地区主要粮食作物之一,可以用作饲料、工业原料及食用,其产量高低直接影响豫东地区的粮食安全。在我国玉米主要产区做节水灌溉试验研究,从而提高玉米产量,增加农民收入具有重要意义。通过2012年测坑夏玉米节水灌溉试验研究,结果表明:夏玉米产量与需水量之间有明显的正相关关系,随着产量的提高,需水量逐渐增加;夏玉米高产节水土壤水分控制指标在非需水关键期灌水控制下限指标为50%,需水关键期灌水控制下限指标为60%时,夏玉米将达到最高产量。
Summer maize is one of the major grain crops in the eastern part of the country and can be used as feed, industrial raw materials and food. The output of summer maize directly affects food security in the eastern part of the country. In China’s major corn producing areas to do water-saving irrigation pilot study, thereby increasing corn yield, increase peasant income is of great significance. The results showed that there was a significant positive correlation between summer maize yield and water requirement, with the increase of yield, the water requirement increased gradually. The high maize yield-saving soil moisture control Indicators in the key period of non-water-key irrigation control indicators for the 50%, critical period of water demand irrigation control indicators for 60%, the summer maize will reach the highest yield.