Based on the concept of ecological field(ecofield), the relationship among the main characters of yiteld and quality of corn(Zea mays)and the ecological factors in a shelterbelt network ecofield were studied in this papar. Result showed that. In shelterbelt network ecofield,the effects of various ecological factors on the characters of yield and quality of corn varied in accordance with the field quanlity and the growth/development stage of corn. Higher temperature before the florescen.se ,and lower soil te...