播期与密度互作对直播棉产量及农艺性状的影响
Effect of interaction between sowing date and density on yield and agronomic characters of direct-seeded cotton
为明确油(麦)后直播条件下中早熟棉花品种不同播期的最适密度，为油(麦)后直播棉轻简栽培提供技术支撑。以赣杂棉0906为试验材料，于2020—2022年采用二因素裂区设计，主区为播期，设3个水平；副区为密度，设4个水平，研究不同播期和密度处理对棉花农艺性状和产量的影响。结果表明，播期推迟，会使棉花生育期缩短。在不同播期与密度组合中，5月15日播种、密度为6.75万～9.75万株·hm-2时，单位面积成铃数相对较高；播期与密度互作对铃重和衣分均没有显…查看全部>>
The aim of this study is to clarify the optimum density of middle-early maturing varieties in different sowing dates under direct seeded conditions, so as to provide technical support for light and simple cultivation of cotton after rape(wheat). Ganzamian 0906 was used as the test material, and a two-factor split plot design was adopted in 2020—2022, with sowing date as the main plot (three levels), and density as the sub-area(four levels), to study the effe…查看全部>>
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