福建春大豆产量与密度、氮素和磷素的关系研究

STUDIES ON THE RELATIONSHIP BETWEEN DENSITY, NITROGEN, PHOSPHOROUS AND YIELD IN FUJIAN SPRING SOYBEAN

本文采用“二次回归通用旋转组合设计”研究福建春大豆产量与种植密度、氮素和磷素之间的关系。结果表明:影响我省春大豆产量的主要因素是种植密度,其次是施氮量和施磷量。莆豆8008要获得150公斤以上亩产的措施是:亩种3.7～3.8万苗,配施尿素2.5～6.5公斤,过磷酸钙9～21公斤;宁镇一号要获得100公斤以上的亩产量,必须亩种2.8～3.3万苗,配施尿素6～14公斤,过磷酸钙12～23公斤。

The design method of quadratic rotation regression has been applied in the present experiment to study the relationship between soybean yield and the primary factors of soybean cultivation: density, nitrogen ( carbamide ) , phosphorus ( calcium superphosphate ) .Analyzing the primary composition, the effect rank of these cultivation factors on yield has been determind as follow: den(?)ty>carbamide>calcium superphosphate. The integrated agricultural measures for obtaining the yield of 150kg/mu in PUDOU-8008 are: 3.7-3.8 the thousand plant/mu; the dosage of carbamide 2.5-6.5kg/mu and calcium superphosphate 9-21 kg/mu. For obtaining the yield of I00kg/mu in NlNGZHEN NO1 are,2.8-3.3 ten thousand plant in per mu and the dosage of carbamide 6-14 kg, calcium superphosphate 12 23 kg.