Effect of Full Coverage on Double Ridges with Furrow Planting and Stalk Returned to Field Technology on Soil Physical and Chemical Characteristics and Maize Yield

This test studied the influence of full coverage on double ridges with furrow planting and the different way of stalk returned to the field on soil physical and chemical characteristics and maize yield. The results showed that the maize under full coverage on double ridges with furrow planting, the straw returned after the soil nutrient contents of arable layer change the performance for the whole plant corn stalk returning > the stalk smash to return field > no-tillage with maize stubble; the soil bulk density was decreased significantly after the straw returned to the field, but no-tillage with maize stubble and one film be two years used to plant maize with soil bulk density was increased. When the straw returned to the field on the soil moisture and the temperature were significantly lower compared with control in the former stage of corn growth, in the late period of maize growth the straw decomposition on the soil moisture played an compensation effect. The change of corn production the performance for the full coverage on double ridges with furrow planting and whole plant straw returned > the full coverage on double ridges with furrow planting and stalk smash to return field > the full coverage on double ridges with furrow planting > no-tillage with maize stubble and one film be two years used> the outdoor planting, the maize under full coverage on double ridges with furrow planting more than outdoor plant production reached significant level, compared with a single of the full coverage on double ridges with furrow planting, adopt the full coverage on double ridges with furrow planting technology combined with corn straw returned to technology that maize yield has a trend of increase, no-tillage stubble and a film with two years planting maize, yield has a trend of decreased but the difference between there was no significant.