摘要
以菏豆28号、菏豆29号和菏豆33号大豆新品种为试材,研究不同种植密度对其农艺性状、产量及产量构成因素的影响。结果表明,随种植密度增加,株高和底荚高逐渐升高,而主茎节数、茎粗和有效分枝数逐渐降低;单株荚数、单株粒数和单株粒重随密度增加都有所降低,而对每荚粒数和百粒重影响不大;随种植密度增加,各品种单产均先升高后降低,但达到最高产量时的密度有所区别,菏豆28号每公顷密度21.0万株时产量最高,为4460.0 kg/hm^2,菏豆29号25.5万株时产量最高,为4480.0 kg/hm^2,菏豆33号16.5万株时产量最高,为4386.7 kg/hm^2。
The effects of different planting densities on agronomic characters,yield and yield components of new soybean varieties Hedou 28,Hedou 29 and Hedou 33 were studied.The results showed that with the increase of planting density,the plant height and bottom pod height increased,while the number of main stem nodes,stem diameter and effective branches decreased.The number of pods,seeds and seed weight per plant decreased with the increase of planting density,while the effects on the number of seeds per pod and the weight of 100 seeds were not significant.With the increase of planting density,the yield per unit area of each variety increased first and then decreased,and the planting density of each variety was different when it reached the highest yield.The highest yield of Hedou 28,Hedou 29 and Hedou 33 was 4460.0,4480.0 and4386.7 kg/hm^2 achieved under the planting density of 210000,255000 and 165000 plants per hectare,respectively.
作者
樊海潮
张继雨
王俊涛
刘艳
王秋玲
Fan Haichao;Zhang Jiyu;Wang Juntao;Liu Yan;Wang Qiuling(Heze Academy of Agricultural Sciences,Heze 274000,China)
出处
《山东农业科学》
2020年第2期38-42,共5页
Shandong Agricultural Sciences
基金
山东省现代农业产业技术体系杂粮创新团队(SDAIT-15-02)
关键词
大豆
种植密度
农艺性状
产量
Soybean
Planting density
Agronomic characters
Yield
