不同播期与种植密度对浙秋豆3号产量及相关性状的影响

Influences of Different Sowing Dates and Planting Densities on the Yield and Yield-related Traits of Zheqiudou No.3

[目的]实现浙秋豆3号的高产高效栽培。[方法]通过在横街农场进行田间试验,研究不同播期与种植密度对浙秋豆3号产量及相关性状的影响。[结果]7月5日、7月20日和8月4日播种的浙秋豆3号的全生育期分别为94、87和77 d。2种种植密度及密度与播期的互作对浙秋豆3号的株高、主茎节数和有效分枝数的影响不显著。不同播期的株高、主茎节数和有效分枝数差异极显著。同一种植密度下,早播浙秋豆3号的产量高于晚播的;同一播期下,密植浙秋豆3号的产量极显著地高于稀植的。早播密植处理A1B2的产量最高,达3 416.7 kg/hm^2;处理A1B1的产量次之,为2 983.35 kg/hm^2,迟播稀植处理A3B1的产量最低,仅1 383.30 kg/hm^2。[结论]早播密植能极显著地提高浙秋豆3号的产量和收益。

[ Objective] The purpose of the study was to realize the high-yield and high efficient cultivation of Zbeqiudou No. 3. [ Method] The influences of different sowing dates and planting densities on the yield and yield-related traits of Zheqiudou No. 3 were studied through the field experiment carried out in Hengjie farm. [ Result] The whole growth periods of Zheqiudou No. 3 sowed on Jul. 5th, Jul. 20th and Aug. 4th were 94, 87 and 77 d resp. The influences of 2 planting densities and their interactions with sowing dates on the plant height, node numbers of main stem and effective branch number of Zheqiudou No. 3 were not significant. The differences of plant height, node numbers of main stem and effective branch number among different sowing dates were extremely significant. With the same planting density, the yield of Zheqiudou No. 3 sowed early was higher than that of Zheqiudou No. 3 sowed late. With the same sowing date, the yield of Zheqiudou No. 3 planted densely was extremely higher than that of Zheqiudou No. 3 planted rarely. The yield of early sowing and densely planting Treatment A1B2 was highest, being up to 3 416.7 kg/hm^2. The yield of Treatment A1 B1 was secondary, being 2 983.35 kg/hm^2. The yield of late sowing and rarely planting Treatmerit A3B1 was lowest, being only 1 383.30 kg/hm^2. [ Conclusion] Early sowing and densely planting could extremely enhance the yield and benefit of Zheqiudou No. 3.