论文部分内容阅读
本文应用回归设计的理论,采用五因素二次正交旋转组合设计,用数学模拟的方法,对8B40的产量及农艺性状与秧龄、密度、氮、磷、钾肥的用量等5项农艺措施之间的关系进行了分析和讨论。初步明确了早籼8B40亩产500公斤以上的播期、密度、氮、磷、钾肥用量的最佳组合。提出了群体结构及植株农艺性状的目标函数指标,为8B40高产栽培的定量化、规范化、模式化提供了理论依据。
In this paper, the theory of regression design was used to design a quadratic orthogonal rotation combination of five factors. Mathematical simulation was used to analyze the relationship between yield and agronomic characters of 8B40 and five agronomic measures such as seedling age, density, nitrogen, phosphorus and potassium fertilizer The relationship was analyzed and discussed. Preliminary clear the early indica 8B40 per mu yield of more than 500 kg sowing date, density, nitrogen, phosphorus and potassium dosage of the best combination. The objective function index of population structure and plant agronomic traits was proposed, which provided the theoretical basis for quantification, standardization and patterning of 8B40 high-yielding cultivation.