生草对南疆温室桃园土壤理化性状的影响

研究生草措施对温室桃园土壤环境和养分的影响,为温室桃栽培优质生产提供理论支持。以温室桃园为研究对象,设置行间种植三叶草和小黑麦为处理,以清耕为对照,测定温室桃园土壤理化性质、体积质量、孔隙度及养分含量的变化。结果表明,温室桃园行间种植三叶草和小黑麦能减缓土壤温度变化幅度,提高土壤含水量,降低土壤水溶性总盐含量,显著增加0～20 cm土层和20～40 cm土层土壤有机质及养分含量,其中种植三叶草的效果好。生草能增加土壤pH,显著降低0～20 cm土壤体积质量,增加土壤总孔隙度。温室桃园生草可以有效调节土壤温度,改善土壤结构和通透性,提高土壤肥力。

Effect of Growing Grass on Soil PhysicochemicalProperties of Greenhouse in Southern Xinjiang

The effects of grass measures by the postgraduates on soil environment and nutrients of peach orchard in greenhouse provide theoretical support for high-quality production of peach cultivation in greenhouse.With peach orchard as research object, planting clover and triticale between rows as treatment, the changes of soil physical and chemical properties, volume mass, porosity and nutrient content in peach orchard were measured. The results showed that intercropping clover and triticale in peach orchard could slow down the change of soil temperature, increase the soil water content, reduce the total salt content of soil water solubility, significantly increase the soil organic matter and nutrient content in 0-20 cm soil layer and 20-40 cm soil layer, and the effect of planting clover was good. Grass can increase soil pH, significantly reduce 0-20 cm soil volume mass and increase soil total porosity. Peach orchard grass in greenhouse can effectively regulate soil temperature, improve soil structure and permeability, and improve soil fertility.