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四、甜菜营养诊断和平衡施肥计算机管理系统的研制 1.基本原理甜菜营养诊断平衡施肥系统,是用于指导糖用甜菜科学施肥的计算机管理系统.该系统在建立高产高糖甜菜植株养分动态模型的基础上,以甜菜各生育阶段的标准养分状况为尺度,对相应生育阶段的大田甜菜植株的10种营养元素的丰缺情况进行诊断,进而自动开出针对性很强的既定性又定量的施肥方案.准确地执行此方案,可使被诊断田块内的甜菜达到以下要求:第一,植株体内所含
Fourth, the beet nutrition diagnosis and balanced fertilization computer management system 1. Basic principles Beet nutrition diagnosis balanced fertilization system, is used to guide the sugar beet scientific fertilization computer management system.This system in the establishment of high yield and sugar beet plant nutrient dynamic model , Based on the standard nutrient status of each stage of sugar beet as a yardstick, to diagnose the abundance and deficiency of 10 kinds of nutrient elements in the field sugar beet plants in the corresponding growth stages, and then to automatically set out the established and quantitative Fertilization program. Accurate implementation of this program, the beet can be diagnosed in the field to achieve the following requirements: First, the plant body contains