STUDY ON OPTIMUM PRODUCTION TECHNIQUES FOR SUMMER CORN PRODUCTION

摘要

Fertilizer placement and seeding date are the major factors that have influences on summer corn yield in North China. The optimum production techniques for fertilizer placement and selecting corn varieties were studied in this paper. Experiments showthat unequivalently adding fertilizer between seeds is the optimum fertilizer placement for starter fertilizer. And the style of adding fertilizer in growth period is in the form of hill-drop in the middle of growth. The variety Nongda-108 should be selected if summer corn is seeded very early. Otherwise variety Xiyu-3 would be selected.