Establishment and Application of Expert System of Ecological Balanced Fertilization Ⅰ Design of Expert System;

Whole Design on Rice Ecological Balanced Fertilization Decision Support System of Heilongjiang Province and Realization of Part Module Function;

The theories of ecological balanced fertilization are introduced systematically in 4 parts theoretical system,fertilization parameter system,fertilization software,and application case,at the aim of popularizing the theories and methods of ecological balanced fertilization.

Labeling the secondary & micronutrients contents on the product bags is favorable to extend balanced fertilization;

Effect of balanced fertilization on Yield and Quality of Chinese kale;

High-efficient balanced fertilization for good quality and high yield of wheat-corn,vegetables in Henan Province;

The present situation and future development of soil and forest nutrient diagnosis and balance fertilization;

Study on balance fertilization of rareripe taro;

Effect of N、P、K balance fertilization on the seeds yield and yield components of Dactylis glomerata;

The significance of balanced fertilizing to crops was indroduced.

Then it presents the method,index and effect of using balanced fertilizing technique and the problems should be paid attention to.

The results of many trials indicated that carrying out balanced fertilizing on the basis of systematic.

According to the status of soil fertility, the nutrition natives of Citrus grandis, and the characters of fertilizers and manures, experiments of equilibrium fertilization were conducted to study soil and crop nutrition with fertilization for three years in Meizhou.

Equilibrium fertilization is one of methods of fertilizering which depends on trophic situation of soil,theabsorption of various nutrients in different crops and the supplement of necessary nutrients, in ordertoobtain the most highest yield and the best ecnomic efficiency.

Equilibrium fertilization is one of methods of fertilizering which depends on trophic situation of soil, the absorption of various nutrients in different crops and the supplement of necessary nutrients, in order to obtain the most highest yield and the best ecnomic efficiency.