摘要
[目的]探讨机插秧适宜的栽插密度。[方法]12011～2012年以常规粳稻南粳46为试验材料，采用两种不同行距的插秧机进行栽插，研究不同行距对产量的影响。[结果]8行25cm栽插行距比6行30cm栽插行距具有较明显的增产优势，主要表现在密度、基本苗和成穗数增加，对穗型的影响较小，可显著提高单位面积总颖花量，从而提高单产。[结论]该研究可为机插秧的高产栽培提供参考。
[ Objective ] The aim was to discuss the optimum planting density of machine-transplanted seedling. [ Method ] The effects of dif-ferent machine-transplanted row spacing on yield of conventional japonica rice Nanjing 46 were studied by selecting two kinds of row spacing in 2011 and 2012. [ Result] The rice yield superiority in the row spacing of 25 cm was obvious compared with that of 30 cm, which showed the increase of maximum density, basic seeding, grain yield per plant and grain yield per unit area. The significant increase of total number of spikelets per unit area was the main cause of the increase of machine-transplanted rice yield. [ Conclusion] The study provides a reference for high yield cultivation of machine-transolanted seedlings.
出处
《安徽农业科学》
CAS
2013年第32期12570-12571,共2页
Journal of Anhui Agricultural Sciences
基金
江苏省农业科技自主创新基金重大专项(CX(12)1003)
关键词
常规粳稻
机插秧
行距
产量
Conventional japonica rice
Machine-transplanted seedlings
Row spacing
Yield
