Title: Effects of Irrigation and Fertilization Management on Soil Organic Matter Contents in Semi-Arid Hilly Area
Abstract: Using quadratic general rotation design, a field trial was carried out in hilly semiarid area of western Liaoning, to study the effects of longterm irrigation and fertilization measurement on soil organic matter contents. The results showthat irrigation and P fertilizer can reduce the contents of soil organic matter by promoting its decomposition and its utilization by crops; N fertilizer can increase soil organic matter, but excessive N can reduce it; mulching corn straws could increase soil organic matter apparently. None of factors can effects soil organic matter solely, there are complex interactions among them, reasonable coordinating of the factors is of important for increase production and keep soil fertility.
Publication Year: 2002
Publication Date: 2002-01-01
Language: en
Type: article
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Cited By Count: 5
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