Quantitative index and techniques for sound seedling and thin planting of rice after wheat harvested

Experiments on rice varieties,density,seedling raising,fertilizer application and spraying were carried out. The results showed that sound seedling and thin planting coordinated with large heavy ear rice variety and V-fertilizing of Nfor groving rice after wheat harvested. Ideal type of plant,rational density of thin planting and favorable yield structure were necessary for high yield of the rice.The results also confirmed that yield of the rice could be increased by wet raising seedlings,combination of N,P,K and Zn fertilizers,application of Si,spraying bilineurine compound and minor elements.