半干旱地区不同耕作方式对土壤水分含量和温度及玉米产量的影响

Effects of Different Tillage Measures on Water Content of Soil and Temperature of Soil and the Yield of Maize in Semi-arid Regions

为了研究半干旱地区不同耕作方式对春玉米产量的影响,以先玉335为试验材料,研究常规垄作(传统)、留茬平作(留高茬30cm)、灭茬平作3种耕作处理方式对半干旱地区土壤水分、土壤温度和春玉米产量的影响。结果表明:从整个耕层中可以看出,在玉米生长发育时期内留茬平作的土壤含水量略高于常规垄作和灭茬平作。播种、苗期到拔节时期常规垄作不同土层的温度均高于留茬平作和灭茬平作。垄作的产量明显高于留茬平作和灭茬平作。常规垄作的20m2穗重比留茬平作和灭茬平作高13.2%和5.6%。垄作产量比留茬平作和灭茬平作高16.1%和7.3%。

In order to discuss the effect of deep loosening in Semi-arid regions,taking the maize cultivar Xianyu 335 as experimental materials, effect of conventional ridge planting, flat planting of stubble and flat planting of crushing stubble on soil water content, soil temperature and yield of maize in semiarid region were studied. The results showed that from the entire topsoil,flat planting of stubble within the growth period for maize in the soil water content was slightly higher than the others. Temperature in sowing and seedling jointing period for conventional ridge soil was higher than the others. The yield of conventional ridge was significantly higher than the others. Spike weight of conventional ridge of 20 mz was 13.2% and 5.6% higher than flat of stubble and flat of crushing stubble. The yield of ridge was 16.1% and 7.3% higher than flat of stubble and flat of crushing stubble.