苗期不同施肥处理对钵苗水稻生长及产量的影响

Effects of Different fertilizer on Growth and Yield of Rice with Pot Seedling Raising

以Ⅱ优118和连粳7号为试验材料,测定了秧苗期钵苗水稻在不同施肥处理下对氮素的吸收速度及效率,从而比较不同处理钵苗水稻出苗、盘根和秧苗素质的差异,探索钵苗水稻合理的秧田培肥技术,为培育壮秧提供依据。结果表明,当连粳7号秧苗期施用尿素30 kg/667 m^2、磷酸二铵20 kg/667 m^2和苗床肥(面施)30 kg/667 m^2时,秧苗素质较好,有利于提高水稻产量;Ⅱ优118苗期施用尿素30 kg/667 m^2、磷酸二铵20 kg/667 m^2和苗床肥(面施)30 kg/667 m^2时,水稻根系长势较好,能满足水稻苗期生长阶段的养分需求。

In order to provide a basis for the cultivation of strong seedlings and explore the reasonable fertilization techniques of rice with pot seedling raising,an experiment was conducted usingⅡyou 118 and Liangeng 7 as materials,the nitrogen absorption rate and efficiency under different fertilizer at seedling stage were measured,and the emergence of rice seedlings of different treatments was investigated.The results showed that it had high yield and fine seedling quality when applying urea 30 kg/667 m^2,diammonium 20 kg/667 m^2 and seedling bed fertilizer 30 kg/667 m^2 at seedling stage of Liangeng 7 andⅡyou 118.