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[1]DENG Yusong,DING Shuwen,JIANG Daihua,et al.Soil Fertility Characteristics of Different Fertilization Patterns in Collapsed Gully Alluvial Fan in Cangwu County[J].Research of Soil and Water Conservation,2015,22(01):56-60.

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Soil Fertility Characteristics of Different Fertilization Patterns in Collapsed Gully Alluvial Fan in Cangwu County

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 01 Page number: 56-60 Column: Public date: 2015-02-28

Title:: Soil Fertility Characteristics of Different Fertilization Patterns in Collapsed Gully Alluvial Fan in Cangwu County

Author(s):: DENG Yusong¹, DING Shuwen¹, JIANG Daihua², WU Fei¹, LI Yaoyao¹, DU Yun¹, MA Yuan¹; 1. College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China;
2. College of Agronomy, Guangxi University, Nanning 530004, China

Keywords:: collapse hills; alluvial fan; fertililization patterns; soil fertility

CLC:: S157.4

DOI:: -

Abstract:: The collapse hills are a great danger of soil erosion types in southern China, especially, large quantities of alluvial material moving into the farmland seriously affect the quality of farmland alluvial fan. In this paper, Cangwu collapse of Gang alluvial fan area was studied. Soil samples were collected from different fertilization patterns under alluvial fan citrus groves for the analysis of farmland desertification in the region to explore the process of the composition change of the soil particles and soil nutrient recovery. The results showed that different fertility patterns could improve alluvial fan soil properties. Soil silt and clay contents and nutrient contents increased significantly. Nemerow composite index using the modified method of alluvial fan soil fertility evaluation showed that fertilizer, manure, green manure + straw soil fertility level coefficient P values increased by 42.11%,139.47%,135.53%, compared to the control area, the manure fertilization mode was the best practice. Correlation analysis showed that soil fertility index was significantly negatively correlated with and soil gravel and sand contents, and was significantly positively correlated with silt and clay contents. The results are of great significance to improve agricultural soils in collapse Gang alluvial fan, promote the understanding of agricultural productivity and efficiency.

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