不同覆盖方式对辽西旱地玉米土壤温度和产量的影响

在大田试验条件下,研究了不同覆盖方式对辽西地区土壤温度和玉米产量的影响。结果表明,不同覆盖处理均可以不同程度的增加旱地玉米土壤温度,渗水地膜覆盖、普通地膜覆盖分别比常规种植（CK）高出5.4%、13.07%。其中,普通地膜的增温幅度最大,整个生育期内不同处理的土壤温度在10 cm和20 cm土层变化趋势基本一致;不同覆盖方式均能增加玉米产量,其中以渗水地膜覆盖增产效果最为明显,比常规种植增产219.19 kg/667m2,增产幅度达32.66%。说明渗水地膜覆盖方式是辽西地区提高土壤温度和玉米产量的最佳覆盖方式。

Influence of Different Cover Way on Soil Temperature and Yield of Dry Land Maize in Western Liaoning

In the field experiment conditions, the different soil covers means to western liaoning province to moderate the influence of maize yield. The results showed that different cover all can deal with different degrees of increasing soil to mild maize yield, plastic film mulching, ordinary water plastic film mulching than conventional planting respectively （CK） higher than the 5.4% , 13.07% , geothermal and straw mulching than conventional planting （CK） low 7.4% o Among them, the largest amount when the ordinary film; The birth of the period, different treatment in 10 cm and consistently; Different cover means all can increase geothermal 20 cm soil soil temperature change trend basic the maize yield, among them with plastic film mulching ooze water effects of increasing, the most obvious than bare area increase 219.19 kg/667m2, increase rate of 32.66%. Explain ooze water ways of plastic film mulching western liaoning province is to improve soil earth temperature and the best maize yield cover means.