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.
出处
《四川农业大学学报》
CSCD
2004年第1期88-91,共4页
Journal of Sichuan Agricultural University
关键词
生草
生物覆盖
土壤肥力
sown grass
organism mulching
soil fertility
