摘要
为给高产优质啤酒大麦新品种华大麦6号的大面积推广提供依据，以五元二次回归正交旋转组合设计为基本数学模型，重点研究了华中地区种植密度、有机肥、氮、磷、钾肥用量等因素对华大麦6号产量、粒重和蛋白质品质的综合效应。模型解析发现，在相同栽培条件下，密度、有机肥、氮、磷、钾肥单因子对产量的绝对贡献顺序为氮肥〉有机肥〉密度〉磷肥〉钾肥，对籽粒蛋白质含量的绝对贡献顺序为氮肥〉有机肥〉密度〉钾肥〉磷肥，对千粒重的绝对贡献顺序为磷肥〉钾肥〉有机肥〉密度〉氮肥。计算机模拟寻优表明，当华大麦6号种植密度在191．64万～211．22万株／ha，施有机肥量在19162～24409kg／ha，纯氮量在206．04～242．56kg／ha，磷肥量（P205）在67．30～81．27kg／ha，钾肥量（K20）在61．52～88．48kg／ha条件下时，产量在4800kg／ha以上，籽粒蛋白质含量在10％～12％之间，千粒重〉42g。因此，这些栽培措施的组合可以作为该品种的高产优质栽培技术的推荐方案。
Second-order regression models for Huadamai 6, a new cultivar with high yielding and desirable quality, were constructed with the dataset arising through one sequential experimentation on the principle of orthogonal, rotatable and central composite design. Three models for yield, seed protein content and thousand grain weight were obtained respectively with the same five operating variables, that is, density, organic fertilizer, nitrogen, phosphorus, and potassium. Absolute contribution to yield is ranged as nitrogen 〉 organic fertilizer〉 phosphorus 〉density 〉 potassium, in terms of the grain protein content and thousand grains weight, their absolute contribution is nitrogen 〉organic fertilizer 〉phosphorus 〉potassium 〉density and phosphorus〉potassium〉organic fertilizer〉 density 〉nitrogen, respectively. A set of operating conditions（that is, 191.64 × 10^4～211.22×10^4 plants / ha density, 19 162～24 409 kg/ha organic fertilizer, 206.04～242.56 kg/ha nitrogen fertilizer, 67.30～81.27 kg/ha phosphorus fertilizer, 61.52～88.48 kg/ha potassium fertilizer） should be met to keep barley quality in desired ranges（above 4 800 kg/ha yield and 10%～12% seed protein content）.
出处
《麦类作物学报》
CAS
CSCD
北大核心
2007年第4期725-730,共6页
Journal of Triticeae Crops
基金
国家自然科学基金项目(60673052)
关键词
大麦
华大麦6号
产量
籽粒蛋白质含量
千粒重
数学模型
栽培技术方案
Barley
H uadamai 6
Yield
Grain protein content
Thousand grain weight
Mathematical models
Orthogonal rotational design
