期刊
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
卷 46, 期 14, 页码 1778-1790出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00103624.2015.1047843
关键词
Copper; crop straw; dairy manure; iron; manganese; zinc
资金
- Special Funds for Agro-scientific Research in the Public Interest of China [201203030]
Soil micronutrients were studied on loess soil with an 18-year long-term experiment. The results indicated that total soil iron and copper contents were similar under all treatments, but total soil manganese and zinc contents were significantly greater at the surface soil in the fertilized plots than in the controls, and total manganese contents were significantly greater in the whole soil profile under manure plus inorganic fertilizers than under controls. Generally, application of inorganic fertilizers had no effects on available soil micronutrient contents. The straw plus inorganic fertilizers significantly increased available manganese content at surface soil and available iron in subsurface soils. However, manure plus inorganic fertilizers significantly augmented soil-available iron contents throughout the profile, and raised available manganese, copper, and zinc contents, respectively, at surface soil relative to controls. The results suggest that long-term input of organic amendments alter the properties of soil and increase its plant-available micronutrient contents.
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