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以杂交稻五优308为试验材料,研究壮秧剂施用量对杂交稻农艺性状及产量的影响。结果表明,施用壮秧剂可显著改善晚稻分蘖进程,分蘖早发快长,显著提高分蘖成穗率;优化群体整齐度,打破了主穗顶端优势,加快分蘖穗发育的进度;改善晚稻源库关系,粒叶比趋于合理;优化亩穗数、穗粒数和千粒重等产量构成参数。在本研究条件下,壮秧剂最佳施用量为29.206kg/hm2,可以实现水稻产量8 592.68kg/hm2的高产目标。
The hybrid rice Wanyou 308 was used as experimental material to study the effects of applying strong seedling agent on the agronomic characters and yield of hybrid rice. The results showed that the application of strong seedling enhancer could significantly improve the tillering process of late rice, early tillering and long tillering, and significantly increase the tillering rate; optimizing the population uniformity, breaking the main spike tip, accelerating the progress of tillering panicle; Relationship, grain-leaf ratio tends to be reasonable; optimize the number of acres of panicles, grains per spike and 1000-grain weight and other production parameters. Under the conditions of this study, the best application of strong seedling agent was 29.206kg / hm2, which could achieve high yield of 8 592.68kg / hm2.