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因为覆膜后追肥不易,生产经常使用一次性基施氮肥,使得覆膜水稻在前期生长过快,后期则缺失氮肥。基于此,以湖北省秦巴山区水稻为研究对象,对比常规淹水种植与覆膜湿润栽培体系中作物生长及氮素吸收率,分析覆膜水稻一次性基施氮肥对前期、后期作物氮肥的需求情况,为水稻覆膜栽培体系的完善提供对比性参照。
Because coated top dressing is not easy, the production often use one-time base nitrogen fertilizer, making the coated rice grow too fast in the early stage, the latter is the lack of nitrogen fertilizer. Based on this, taking the rice in Qinba mountain area of Hubei Province as the research object, comparing the crop growth and nitrogen absorption rate in conventional wet cultivation and film mulching cultivation system, the effects of single base N application with film mulching on the nitrogen fertilization of the early and late crop Demand, provide a comparative reference for the improvement of rice cultivation system.