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[1]YANG Hao,HU Jiwei,HUANG Xianfei,et al.Study on Soil Fertility of Rosa sterilis S. D. Shi Planting Bases Located in Karst Areas[J].Research of Soil and Water Conservation,2015,22(03):50-55.

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Study on Soil Fertility of Rosa sterilis S. D. Shi Planting Bases Located in Karst Areas

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 03 Page number: 50-55 Column: Public date: 2015-06-28

Title:: Study on Soil Fertility of Rosa sterilis S. D. Shi Planting Bases Located in Karst Areas

Author(s):: YANG Hao^1,2, HU Jiwei^1,2, HUANG Xianfei², FAN Mingyi², LI Jieling^1,2; 1. Institute of South China Karst, Guizhou Normal University, Guiyang 550001, China;
2. Guizhou Provincial Key Laboratory of Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang 550001, China

Keywords:: Rosa sterilisS.D.Shi; soil fertility; Nemerow synthesis index method; Karst; evaluation

CLC:: S158.2

DOI:: -

Abstract:: Soil fertility is normally considered as the basis of sustainable development of agriculture. The gain and loss of soil fertility for the Rosa sterilis S. D. Shi planting bases located in Karst areas of Guizhou Province was investigated to provide the basis for reasonable fertilization. The soil fertility of the Rosa sterilis S. D. Shi planting bases in Karst areas was assessed with the modified Nemerow synthesis index. Eight soil indicators, including pH, soil organic matter, total nitrogen, phosphorus and potassium, available nitrogen, phosphorus and potassium, were selected to grade soils. Comprehensive evaluation and factor analysis were also conducted to study soil fertility based on the Second National Soil Census Classification Standard. The results showed that the variation coefficient of soil fertility for the Rosa sterilis S. D. Shi planting bases was between 1.16 and 2.23. The soil fertility in Pinba County is better than in Wudang District. The soil fertility for the Rosa sterilis S. D. Shi is in grade 3 in Wudang District, which belongs to general degree. Except the soil samples from p₂ and p₃ which belong to grade 3, the soil fertility for the Rosa sterilis S. D. Shi belongs to the fertile degree at the other sample sites of Pinba County. Lack of soil phosphorus and potassium may be the main restrictive factors for the improvement of soil quality from Rosa sterilis S. D. Shi planting bases in Karst areas. The organic fertilizer containing abundant phosphorus and potassium should be used to improve soil quality in Karst areas. Factor analysis shows that total phosphorus, available phosphorus and potassium have the significant impacts on the soil fertility for these planting bases. The results from the modified Nemerow synthesis index method are in agreement with those from the factor analysis.

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