施肥量和种植密度对中豆4601产量及农艺性状的影响

Effects of fertilizer amount and planting density on yield and main agronomic traits of soybean Zhongdou 4601

以大豆[Glycine max(Linn.)Merr.]品种中豆4601为试验材料,采用两因素随机区组试验,研究施肥量和种植密度对中豆4601产量及农艺性状的影响。结果表明,施肥量和种植密度对中豆4601产量均有极显著影响,不同施肥量处理间的差异达极显著水平,施肥量与种植密度间的互作对中豆4601产量的差异影响未达到显著水平;在33.0万~66.0万株/hm^2的种植密度下,中豆4601产量随着种植密度的增加而减少,主茎节数、有效分枝数、单株荚数、单株粒数、单株粒重均随着种植密度的增加而有不同程度的降低。在荆门市种植中豆4601以300 kg/hm^2三元复合肥作底肥,种植密度为33.0万株/hm^2的产量最高。

Soybean[Glycine max(Linn.)Merr.]variety Zhongdou 4601 was used as experimental material,a two-factor randomized block experiment was conducted to study the effects of fertilizer amount and planting density on the yield and agronomic traits of Zhongdou 4601.The results showed that the fertilization amount and planting density had significant effects on the yield of Zhongdou 4601.The difference between different fertilization treatments reached a very significant level.The interaction between fertilization amount and planting density had no effect on the yield of Zhongdou 4601.At a planting density of 330000.0 plants/hm^2 to 660000.0 plants/hm^2,the yield of Zhongdou 4601 decreased with the increase of planting density.The number of main stems,effective branches,number of pods per plant,number of seeds per plant,and seeds weight per plant all decreased with increasing planting density.In Jingmen city,the yield of Zhongdou 4601 with 300 kg/hm^2 ternary compound fertilizer as base fertilizer was the highest when the planting density was 330000.0 plants/hm^2.