有机肥对玉米水分生产率及产量影响初探

为了研究有机肥对玉米水分生产率及产量的影响，在彭阳县中部河谷残塬区老牙村淤绵土上进行地膜玉米施用有机肥试验；以降低耗水系数，提高水分生产效率，增产增效。结果表明，在施N素219kg／hm^2，且基、追施各占60％和40％的基础上，施用有机肥可相应提高水分生产效率0．11—0．24kg／（mm·hm^2），增产6．5％-10．6％，增收1200．2～1946．7元／hm^2。

Preliminary Exploration of Effect of Organic Fertilizer on Water Productivity and Yield of Maize

In order to make a study of the effect of the organic fertilizer on the water productivity and the yield of maize, an experiment was conducted on the application of organic fertilizer to film-mulched maize on the silt soft soil at Laoya village in the valley gully area of the middle Pengyang county in order to reduce the water consumption coefficient and increase the water production efficiency to achieve the objectives of the yield and efficiency increasing. The result showed that when 219 kg/hm2 of nitrogen was applied with the basal fertilizer and the topdressing accounting for 60% and 40% respectively, and when the organic fertilizer was applied, the water productivity could be increased by 0.11-0.24 kg/ （mm·hm2）, the yield could be increased by 6.5% - 10.6% and the income could be increased by 1 200.2 - 1 946.7 yuan/hm2 correspondently.