水肥耦合效应对辣椒产量影响初探

Coupling Effect of Water and Fertilizer on Pepper Yield

本文采用二次回归正交旋转组合设计,建立了灌水定额、氮肥和磷肥对辣椒产量的数学模型。研究表明:水、氮、磷三个因素对辣椒产量的影响大小基本相近。灌水量和氮肥、氮肥和磷肥对辣椒产量的耦合作用为负效应,灌水量和磷肥对产量的耦合作用为正效应;筛选出了辣椒稳产、高产的水肥管理措施。

By means of the quadratic orthogonal rotatory combination design, regression model of water and P on pepper yield was established. Analysis result showed that the effect of three factors on pepper was approximative. Coupling effect of water and N,and N and P on yield was negative, but water and P was positive. An optimum management plan of water and fertilizer was suggested for high yield based on computer simulations.