STUDY OF SLIGHTLY-WATER-SOLUBLE SLOW-RELEASE FERTILIZER ON SPRING CORN AND ENVIRONMENT EFFECT UNDER THE CONDITION OF DIFFERENT IRRIGATION AMOUNT Responses of spring corn growth and yield in a cold area of China to field warming at nighttime during preanthesis stage. Dynamics of soil carbon and nitrogen in plowed layer of spring corn and spring wheat fields mulched with straw and plastic film Effect of fertilization on soil ammonia volatilization in spring corn fields Dynamic simulation on growth and development of spring corn in different cropping patterns in northern Zhejiang Province