【摘要】 采用 2个品种 (组合 ) ,研究密度和氮肥运筹方式对绿化乳苗抛栽稻群体质量和产量形成的影响 .结果表明 :常规稻在 60 .0万棵· hm-2基本苗条件下采用平衡施肥法 ,杂交粳稻在 37.5万棵· hm-2基本苗条件下采用前重施肥法 ,有利于绿化乳苗抛栽稻获得适宜群体 ,提高成穗率 ,源库协调 ,穗大粒多 ,实现高产更多还原

【Abstract】 During 1998～1999, we took two varieties of rice and studied the effects of the planting density aid the N\|fertilizer management of population quality and actual yield of rice sucking seedling transplanted by casting. Results were as follows: A favourable N\|fertilizer management is the balanced application for ordinary rice with the basic seedlings being 600 000·hm -2 , and the much application at early stages for hybrid rice with the basic seedlings being 375 000·hm -2 . It will improve the population construction and the percentage of ear\|bearing, harmonize source and warehouse, improve ears and grains, and acquire the high yield.更多还原