Source was lack in late growth stage, so source was the major restrictive factor under early sowing condition. The late sowing was lack of sink, but relative large of source.
早播促进了源库的协调发展,降低了籽粒败育,增加了库、源量,延缓了叶片衰老,但生育后期源不足,源是限制产量的主要因素;晚播库容不足,源相对较大,库是限制产量的主要因素。
参考来源 - 不同栽培措施对夏玉米库源关系影响的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
It was considered that Tilt could be better fungicide to control rice diseases at medium-late growth stage.
初步认为敌力脱是防治水稻中后期病害较好的药剂，能达到多种病害兼治的目的。
The production superiority of high-yield and super high-yield rice was exhibited during the middle and the late growth stage.
高产和超高产品种的物质生产优势表现在生育中期和后期，其生育中期和后期群体生长率显著高于低产品种。
It is beneficial to supply consistent nutrition in the middle-late growth stage when more organic matter is decomposed by stronger microbial activity.
较强的微生物活性能够促进有机质转化分解，有利作物中后期养分的持续供应。
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