Effect of Different Soil Moisture Conservation on Soil Moisture and Wheat Yield

The field experiment was down by using the method of leaving stubble mini tipply irrigation, the way conservation soil moisture cultivation. The results shown that straw mulching could increase the soil moisture after wheat harvest. The soil moisture in 0～60 cm at straw mulching, supply irrigation and traditional were 15.3 mm,6.7 mm and 6.4 mm respectively. The wheat yield with leaving stubble, mini till and straw mulching during the whole growth increase by 6.7%～54.8% than that under the conservation soil moisture conservation. The straw mulching method is effective to conserve soil moisture before sowing wheat, fulling stage and for whole wheat growth and could raise wheat yield in semi dryland area.