论文部分内容阅读
为研究不同土壤管理方式对苹果园土壤养分含量的影响,选择庆阳市不同区域生草覆盖、黑膜覆盖和清耕(对照)3种管理方式,对90个苹果园土壤进行养分分析。结果表明:生草覆盖和黑膜覆盖0~30、30~60cm土层中土壤有机质、全氮、速效氮、全磷、有效磷、全钾、速效钾的含量均高于清耕(对照),提高了果园土壤的基础肥力,增加了土壤的养分含量,其中生草覆盖对增加土壤养分更为显著,在苹果园管理上应大力推广。
In order to study the effects of different soil management practices on soil nutrient content in apple orchard, 90 apple orchard soil samples were selected for nutrient management by three management methods: grass cover in different areas of Qingyang City, black-film mulching and clear-tillage (control). The results showed that the contents of soil organic matter, total nitrogen, available nitrogen, total phosphorus, available phosphorus, total potassium and available potassium in 0-30, 30-60 cm soil layers covered by black mulch and black mulch were higher than that of pure tillage (control) The orchard soil fertility, increased soil nutrient content, including grass cover on the increase of soil nutrients is more significant in apple orchard management should be vigorously promoted.