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近年来,肥水的开发利用工作已在各地蓬勃开展。肥水灌溉玉米的增产作用已被群众所公认。在泾阳县的大田试验中,一般增产20％左右,在肥力较低的田块上,增产达30％。为了进一步找出关中地区合理使用肥水灌溉玉米的规律。我队于1974～76年在泾阳布置了试验,掌握了一些规律,总结如下,供关中地区用肥水灌玉米时参考。一、肥水浓度对玉米产量的影响。选择肥水灌溉浓度,主要取决于土壤肥力,灌溉次数和作物需肥规律。1975年在石桥
In recent years, the development and utilization of fertilizer and water has been vigorously carried out throughout. Fertilizer effect of irrigation of corn yield has been recognized by the masses. Field trials in Jingyang County, the general increase of about 20%, in the plots of low fertility, an increase of 30%. In order to further find the Guanzhong area rational use of fertilizer irrigation of corn law. My team in 1974 to 76 in Jingyang layout test, mastered some of the rules, concluded as follows, for the Guanzhong area with maize irrigation fertilizer reference. First, the concentration of fertilizer on the impact of corn production. The choice of fertilizer and water irrigation concentration, mainly depends on soil fertility, irrigation frequency and crop fertilizer requirements. In 1975 in the stone bridge