摘要
采用四元二次回归正交旋转组合设计,研究了密度、氮肥、磷肥和钾肥对苎麻品种华苎4号新栽麻的产量效应。结果表明,4个参试因子对新栽苎麻原麻产量的影响顺序是P2O5(x3)>纯N(x2)>密度(x1)>K2O(x4);频率分析结果显示,新栽苎麻三季折合产量y≥675 kg/hm2的最佳栽培措施为种植密度25 425～29 100株/hm2,施氮量(纯N)412.50～453.75 kg/hm2,P2O5 116.40～135.00 kg/hm2,K2O 292.80～345.90 kg/hm2。
The effects of planting density and supplement of nitrogen,phosphorus and potassium on the yield and the quality of newly planted ramie ＂Huazhu No.4＂ were tested using the four-factor second-order regression with orthogonal,rotatable and central composite design method.Results showed that,the influence on fiber yield of newly plant ramie by four factors ranks as follows： P2O5（x3）〉 N（x2）〉 density（x1）〉 K2O（x4）.The optimal cultivation measures for high-yield（≥675 kg per hectare） in the newly planted ramie were 25 425～29 100 plants per hectare,412.50～453.75 kg N per hectare,116.40～135.00 kg P2O5 per hectare,and 292.80～345.90 kg K2O per hectare.
出处
《湖北农业科学》
北大核心
2011年第4期675-678,共4页
Hubei Agricultural Sciences
基金
国家麻类产业技术体系建设项目(nycytx-19-E12)
关键词
苎麻
四元二次正交旋转组合设计
产量
品质
模拟寻优
ramie
four-factor second-order regression with orthogonal
rotatable and central composite design
yield
quality
simulation and optimization
