枣园间作小麦的生态效应分析

为提高枣园的生态环境效益和生产潜力,进行了枣园间作小麦与单作小麦对比试验。结果表明,枣园间作小麦有效地降低小麦田干热风的发生;枣园间作区土壤容重、温度降低,土壤总孔隙度、毛管孔隙度、毛管持水量、水分含量均显著增加(P<0.05);枣园间作区土壤细菌、放线菌、真菌、纤维分解菌、固氮菌的数量以及有机质、全氮、速效磷、速效钾均增加显著(P<0.05)。枣园间作小麦对土壤物理性质、土壤微生物、土壤养分具有明显的改善作用。

Ecological efficiency of intercropping wheat with Chinese jujube

To improve ecological efficiency of Chinese jujube orchard and to further dig out its productive potentiality,comparative tests between intercropping wheat with Chinese jujube and single-cropping wheat were conducted.The results showed that intercropping wheat with Chinese jujube could obviously decrease dry-hot winds in wheat field;Bulk density and temperature of the soil were decreased,and the total porosity,capillary porosity,capillary moisture capacity and moisture capacity were apparently improved(P<0.05);the number of bacteria,actinomyces,fungus,cellulose-decomposing bacteria and nitrogen-fixing bacteria in soil was increased,and the content of organic matter,total N,available phosphorus and potassium in soil were raised(P<0.05).Intercropping wheat with Chinese jujube can obviously improve soil physical properties,soil microorganisms and soil nutrient.