生草和生物覆盖对果园土壤肥力的影响  

Effect of Sown Grass and Organism Mulching on Orchard Soil Fertility

作　　者：徐雄[1] 张健[1] 

机构地区：[1]四川农业大学林学园艺学院,四川雅安625014

出　　处：《四川农业大学学报》2004年第1期88-91,共4页Journal of Sichuan Agricultural University

摘　　要：综述了生草或生草后刈割覆盖园地对果园土壤水、肥、气、热、土壤微生物、土壤酶等肥力因子的影响。从大量的文献报道看 ,生草或生草后通过刈割覆盖园地可以均衡土壤水分含量 ,增加土壤有机质及土壤无机营养成分———全N、碱解N、速效P、速效K以及Fe、Mn、Cu、Zn的含量 ,降低土壤容重、比重 ,增加土壤孔隙度 ,稳定地温 ,同时还能增加土壤微生物的数量 。This overview summarizes the effects of sown grass or organism mulching on orchard soil water, nutrients, air, temperature, microbes and enzymes. From many articles and researches, it can be concluded that sown grass or organism mulching can regulate soil moisture, the contents of organic matter and inorganic nutrients, including whole nitrogen, rapidly available nitrogen, phosphorus, potassium and Fe, Mn, Cu, Zn; soil bulk density and specific weight decrease; soil porosity increases; soil temperature stabilizes; soil microbes enrich and the activity of soil enzymes enhance.

关 键 词：生草 生物覆盖 土壤肥力 

分 类 号：S66[农业科学—果树学] S142[农业科学—园艺学]