摘要
1986～1989年,在本所试验田,运用四因子二次通用旋转回归组合设计方法,对夏大豆产量与种植密度、底肥用量、追肥时期、灌溉间隔天数等综合栽培技术的关系进行了研究。结果表明,在山东省气候条件和本试验土壤肥力水平下,夏大豆亩产225kg以上,种植密度为1.87～1.99万株·亩^(-1),底施复合肥(N:P_2O_5:K_2O=15:15:15)18.5～21.4kg·亩^(-1),出苗后43～47天追肥(尿素10kg·亩^(-1)),每9～10天灌溉一次。密度和灌溉间隔天数是影响夏大豆产量最主要的因素。因素间的交互作用对夏大豆产量影响很大。单因素边际产量随环境条件而变化。
The relationship between grain yield and integrated cultural practices including planting dencity,base complex fertilizer,date of top application and days between irrigations in summer soybean were studied with design of ordinary second order rotatable regression of four factors in field in 1986-1988. The results showed that under the conditions of Shandong province and on the fertility level of soil in the experimantal field .integrated cultural practices of the yield gained over 225kg per mu were as follows:the plant dencity being 18. 9-19. 9 thousand plants per mu ,the amount of base complex fertilizer(Z:P2O5:K2O= 15:15:15)being18. 5-21. 4kg per mu, the top application (Urea,10kg per mu)being 43-47 days after emergence,days between irrigations being 9-10. The main factors afficting the yield of summer soybean were plant density and days between irrigations. The effects of interactions between factors were significant. The boundary yield of single factor varied with the enviromental coditions.
出处
《大豆科学》
CAS
CSCD
北大核心
1993年第3期225-231,共7页
Soybean Science
关键词
大豆
高产
栽培
Summer soybean
Integrated cultural practices
