Abstract:

Study the effective fertilization modes on the Karst soil nutrients after land consolidation, and the content of nutrients in different soil particle fractions. A slope land at Chenjiazhai village of Puding County, Guizhou Province, was used as plot experiments in which different amounts of fertilizer were used in order to study the influence of fertilization modes on the Karst soil nutrients after land consolidation. The results showed that: (1) the of fertilizing modes such as farmyard manure mode, subsoiling mode, using local earthworms mode made a good effects on the increase of content of soil organic matter, total N. (2) The of fertilizing modes such as farmyard manure, integrated with urea, single superphosphate and potassium chloride were beneficial to increase the contents of soil total P and total K. (3) Soil organic matter and other nutrients in fractions of 0.002-0.02 mm were higher than in other soil particle fractions.