Characteristics and influencing factors of chemical fertilizer and pesticide applications by farmers in hilly and mountainous areas of Southwest, China

Shaojun Tan; Deti Xie; Jiupai Ni; Fangxin Chen; Chengsheng Ni; Jingan Shao; Dun Zhu; Sheng Wang; Ping Lei; Guangyao Zhao; Shichao Zhang; Hua Deng

Ecological Indicators (Oct 2022)

Characteristics and influencing factors of chemical fertilizer and pesticide applications by farmers in hilly and mountainous areas of Southwest, China

Shaojun Tan,
Deti Xie,
Jiupai Ni,
Fangxin Chen,
Chengsheng Ni,
Jingan Shao,
Dun Zhu,
Sheng Wang,
Ping Lei,
Guangyao Zhao,
Shichao Zhang,
Hua Deng

Affiliations

Shaojun Tan: College of Resources and Environment, Southwest University, Chongqing 400715, China; The National Base of Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Southwest University, 400715, China
Deti Xie: College of Resources and Environment, Southwest University, Chongqing 400715, China; The National Base of Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Southwest University, 400715, China
Jiupai Ni: College of Resources and Environment, Southwest University, Chongqing 400715, China; The National Base of Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Southwest University, 400715, China; Corresponding author.
Fangxin Chen: College of Resources and Environment, Southwest University, Chongqing 400715, China; The National Base of Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Southwest University, 400715, China
Chengsheng Ni: College of Resources and Environment, Southwest University, Chongqing 400715, China; The National Base of Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Southwest University, 400715, China
Jingan Shao: College of Geography and Tourism, Chongqing Normal University, Chongqing 401331, China
Dun Zhu: Changjiang Water Resources Protection Institute, Wuhan 430051, China
Sheng Wang: College of Resources and Environment, Southwest University, Chongqing 400715, China; The National Base of Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Southwest University, 400715, China
Ping Lei: College of Resources and Environment, Southwest University, Chongqing 400715, China; The National Base of Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Southwest University, 400715, China
Guangyao Zhao: College of Resources and Environment, Southwest University, Chongqing 400715, China; The National Base of Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Southwest University, 400715, China
Shichao Zhang: College of Geography and Tourism, Chongqing Normal University, Chongqing 401331, China
Hua Deng: Chongqing Youth Vocational & Technical College, Chongqing 400712, China

Journal volume & issue: Vol. 143
p. 109346

Abstract

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Studying the characteristics and driving factors of chemical fertilizer and pesticide application of farmers is helpful for the prevention and control of regional non-point source pollution (NPSP). In this study, 320 farmers in Chongqing were surveyed, and the characteristics and main factors influencing chemical fertilizer and pesticide applications were analyzed by spatial analysis and partial least squares regression (PLSR). The results can be showed that: (1) Aaverage unit area applications of N, P2O5 and pesticide were 6.01 kg/ha/yr, 3.78 kg/ha/yr and 107.89 g/ha/yr. Among them, the fertilizer and pesticide application rates of large-scale households are 8.46 kg/ha/yr/, 5.82 kg/ha/yr and 287.61 g/ha/yr, and the application rates of general farmers are 4.54 kg/ha/yr, 2.55 kg/ha/yr and 40.21 g/ha/yr. Larger amount were applied to orchard and vegetable by large-scale farmer, while larger amounts were applied to grain by general farmers. (2) Fertilizer were spatially agglomerated on a household scale, while pesticide were spatially discrete on a county scale. (3) Average age (AA) of farmers and planting scale (PL) are the main factors affecting fertilizer amounts. Education level (EL), policy guidance (PG), and awareness of environmental effects (AEE) are the main factors influencing pesticide applications. Governments need to formulate rural labor policies and promote land transfer, while also strengthening fertilizer and pesticide reduction policies to enhance farmers’ environmental awareness.

Published in Ecological Indicators

ISSN: 1470-160X (Print); 1872-7034 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Science: Biology (General): Ecology
Website: https://www.sciencedirect.com/journal/ecological-indicators

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