不同插秧密度对水稻生长发育及产量的影响（Ⅰ）──寒冷地区种稻低耗增效稀植栽培技术体系的研究  

The Impact of The Different Densities of Transplants on Rice Growth,Development and Yield (Ⅰ)──Studies on The System of Thin Planting Cultivation Techniques in Rice among Cold Areas

作　　者：崔一龙[1] 林仁哲 

机构地区：[1]延边农学院农学系

出　　处：《延边农学院学报》1994年第3期160-165,共6页

摘　　要：水稻稀植（２９．７×２６．４ｃｍ）较密植（２９．７×１３．２ｃｍ）增多二次分蘖的有效穗数，提高有效分蘖率，增多穗的二次技埂数；上部伸长节间变长，基部节间变短而粗，增加折损重，提高抗倒能力；生育后期叶色下降缓慢，方差分析结果表明，株数１穴间产量差异不显著，但不同穴距间产量差异显著；多重比较结果表明２９．７×２６．４、２９．７×１９．８、２９．７×１３．２三者间产量差异不显著，但均与２９．７×３３有显著差异。龙井稻区推广２９．７×２６．４每穴插２—３株稀植栽培技术可达到低耗增效之目的。While the rice thin planting was compared with that condensed planting, The rice thinplanting increaced available spike number of two times tiller, raising effective tiller rate, increasing tile twotimes branch stalk number of ears, its upper elongative internode became long,its bottom internode becameshort and thick, increasing the weight of breakage loss, enhancing capacity for the resistance of lodging,its leaf color faded slowly in the growing anaphase ;Result revealed by variance analysis that there were not significant differences between per hole plant number yields,but there were significant differences in the yield of distance between hole;Results showed by multiple comparison that there were not significant differences inyield among 29. 7×26. 4 ,29. 7×19. 8,29. 7 ×13. 2;but there were significant differences between each of thethree above and 29. 7×33. A dopting thin planting cultivation (two or three seadlings per hole, 29. 7×26.4cun) can reach the purpose of low consumption and increasing benefit.

关 键 词：水稻 栽培 密度 生长发育 产量 寒冷地区 

分 类 号：S511.1[农业科学—作物学]