Ecological effects of ploughing and softening with aggregate dressing for wide-row close maize growing in the semi-humidity dryprone areas

Field experiments were carried out to study the effects of ploughing and softening with aggregate dressing for maize-growing and its field ecological effects. The results showed that along the maize row,deep ploughing before planting,combining side ploughing and softening can soften the tillage pan, increase the soil permeability and water storage in deep layer of soil during the growth period of maize.Furthly combining aggregate dressing, banded rich soil will be quickly formed which can improve the maize growth conditions. By wide-row close planting measures,the light and micro-climate conditions can also be improved.Those measures have significant effects on maize yield increase.