在实地机插田间小区试验(非人工模拟)条件下,比较研究了3种施氮水平组合2种穗肥比例共6种氮肥运筹对杂交中籼水稻机插群体主要群体质量指标以及产量形成的影响。结果表明,210千克/公顷的施氮量,配合基蘖肥∶穗肥=6∶4的运筹方式有利于群体茎蘖平缓消长,减少无效分蘖,提高成穗率,协调群个体矛盾,提高中、后 Under the conditions of field plot experiment (non-artificial simulation), six nitrogen fertilization combinations with three nitrogen rates were applied to study the quality index and yield formation of main groups of indica rice hybrids. influences. The results showed that application of 210 kg / ha nitrogen fertilizer combined with basal tillering fertilizer: panicle fertilizer = 6: 4 was beneficial to the smooth growth and decline of tiller and tiller, reducing ineffective tillering, increasing spike rate, coordinating individual contradiction and improving ,Rear