福建农业科技2025，Vol.56Issue(4)：39-44,6.DOI:10.13651/j.cnki.fjnykj.2025.04.006
春大豆泉豆20高产栽培综合农艺措施数学模型研究
Study on the Mathematical Model of Comprehensive Agronomic Measures for High-yield Cultivation of Spring Soybean Variety'Quandou 20'
摘要
Abstract
In order to explore the high-yield and high-efficiency fertilizer and density cultivation scheme of Quandou 20 and accelerate the popularization and application of varieties,a four-factor(full implementation)with five-level quadratic general rotation combination design was used to study the effects of density(X1),nitrogen fertilizer(X2),phosphorus fertilizer(X3)and potassium fertilizer(X4)on the yield of Quandou 20.Then,the second-order regression mathematical model with the yield of Quandou 20 as the objective function was established,and the main effects and interaction effects of each factor on the yield were analyzed.The results showed that the second-order regression mathematical model established by the experiment reached a very significant level,and the regression model had a good fit with the actual situation.The significance test results of regression coefficient showed that the first order term of planting density was significant level,and the second order term was extremely significant level.The quadratic terms of nitrogen fertilizer,phosphorus fertilizer and potassium fertilizer were all extremely significant;the interaction effect of phosphate fertilizer and potassium fertilizer was significant.The order of influence of each factor on the yield of Quandou 20 was as follows:potassium fertilizer>density>nitrogen fertilizer>phosphorus fertilizer.According to the model,the cultivation methods of Quandou 20 with the yield more than 2270.07 kg·hm-2 were determined as follows:planting density of 243 100-262 300 plants·hm-2,nitrogen fertilizer of 78.42-91.59 kg·hm-2,phosphorus fertilizer of 252.60-311.10 kg·hm-2,potassium fertilizer of 81.96-93.51 kg·hm-2.关键词
泉豆20/肥料/密度/高产栽培/数学模型/二次通用旋转组合设计Key words
Quandou 20/Fertilization/Density/High yield cultivation/Mathematical model/Quadratic general rotation combination design分类
农业科技引用本文复制引用
叶志雄..春大豆泉豆20高产栽培综合农艺措施数学模型研究[J].福建农业科技,2025,56(4):39-44,6.基金项目
福建省科技计划星火项目(2024S0027). （2024S0027）
