关键词: 生物沉积, 生物沉积, 扩散通量, 营养盐, 扑草净, 仿刺参

Abstract: Huang-Huai-Hai region is an important commodity grain production region in China. Its double cropping farming system is characterized by winter- wheat and summer- maize planting. Increasing the efficiency of grain production in the Huang-Huai-Hai region has great significance to the advancement of agriculture, the development of rural areas and the well-being of farmers. In this study, we propose a method that features a 10-15 days delay of winter wheat sowing, in combination with the use of early maturity and high grain dehydration rate maize varieties that fit mechanically harvesting and related cultivation management and harvesting form. Meanwhile, we suggest that collaborative cooperation between enterprises and scientific research institutions be carried out to select and cultivate mechanically harvesting grain varieties, improve the grain harvest machinery, build drying equipment, and apply for national supporting projects to help industry upgrading and promote the comprehensive development of grain production in Huang-Huai-Hai region.