【摘要】 为充分发挥主要栽培措施对控穗瘟保高产的综合效应,运用多元二次旋转回归设计及微电脑技术,在一季中稻的代表地区楚雄,以中感品种楚粳3号为材料进行试验,经1988、1989两年的研究,建立了产量、穗瘟与栽培措施关系的数学模型,明确了栽插密度、N、P、K、Beam等因子不同数量配伍对产量和穗瘟的综合效应及各因子的独立效应、交互效应,据此提出控穗瘟保高产栽培模式.更多还原

【Abstract】 This experiment was conducted in 1988 and 198P with a variety of Chujing 3 in a typical single cropping area, Chuxiong of Yunlan. For bringing the comprehensive effect of combination of cultural practices to ensure controlling rice blast and high yielding into fall play, a mathematical model of relation for yield and rice neck blast to cultural practices had been established with multivariate rotational regiession design by microcomputer technique. The comprehensive effect of quantitative combination of the test factors such as the planting density,the amount of N, P, K, and Beam applied on the yield and neck blast of rice, the independent effect and cross effect of these factors had been studied.更多还原