行距和密度配置对连麦8号群体质量及产量的影响

Line Spacing and Density Treatment on Population Quality and Yield of Lianmai 8

为探索淮北黏土地地区晚播稻茬麦高产高效栽培技术,以当地主栽品种之一连麦8号为试验材料,研究不同行距、密度配置对连麦8号群体质量及产量的影响。结果表明,在一定范围内,连麦8号产量随着播种密度的增加和行距的减小逐渐增高,其中当播种密度为600万/hm^(2)、行距为15 cm时以及播种密度为525万/hm^(2)、行距为15 cm时,小麦产量达到最大值,说明对于淮北地区晚播稻茬麦要想获得高产,必须配以相对较窄行距与较高密度。

In order to explore the high-yield and high-efficiency cultivation technique of late-sowing and stubble wheat in Huaibei sticky land area,we researched the effects of line spacing and density on the quality and yield of Lianmai 8 with the main cultivar Lianmai 8 as the test material.Results showed within a certain range,yield of Lianmai 8 gradually enhanced as the increase of sowing denisty and the decrease of line spacing.The yield reached the maximun under 6000 thousand/hm^(2),line spacing 15 cm and 2520 thousand/hm^(2),line spacing 15 cm,which indicated that high density and narrow line spacing were needed so as to obtain high yield in Huaibei Area.