Abstract:

The studies were conducted on the effect of different seeding manner on the soil bulk density, Porosity and seedling rate before-winter, tiller in spring and Individual secondary root of the wheat cultivar “Jimai 22” under the maize-wheat double cropping system and maize stalk full returned to the fields in the Huang-Huai Plain. The results showed that sowing quantity is the main reason which significantly affected the secondary root, tiller and seedling rate. The affecting force is 65.52%,54.02% and 35.46%; Compacting has extremely effect for the seedling rate, the affecting force is 23.48%; Sowing quantity, depth and Compacting has no any extremely effect for soil bulk density and Porosity. Comparison for the effect each other of sowing depth and compacting, it shows that more sowing quantity the effect is more evidence.