Analysis and application on maize nutrition of growth

Based on the located experiments of high yields and failure of crop in 1987～1999，the analysis means of maize nutrition of growth instead of dry matter weight are brought up. The relationships between the growth orderliness and the yields formation in different surroundings are revealed,and it is the same orderliness of relations between dry matter weight and yields formation. So,new ecology indexes for researching maize ecology are increased.