Farming management practices towards water quality improvement among smallholder farmers in Kampong Thom Province, Cambodia

Name: Ngang, Linna

LCSH: Kasetsart University -- Theses. M.S. (Agricultural and Resource Economics) 2022

Classification :.LCCS: S471.C16

LCSH: Kasetsart University. -- Department of Agricultural and Resource Economics -- Theses

LCSH: Farm management -- Cambodia -- Kampong Thom

LCSH: Water quality -- Cambodia -- Kampong Thom

LCSH: Agricultural systems -- Cambodia -- Kampong Thom

Abstract: This study aims to identify farming systems and practices that may affect water quality and factors affecting farmers' decisions on less excessive application of N-fertilizer, herbicides, and insecticides on the plot level. Agrarian system diagnosis was used to build farm typology and the practices that may lead to a negative impact on water quality (contamination), while the logit model is used to identify factors affecting farmers’ decision to use low-level N-fertilizer, herbicides, and insecticides. The result shows that three main types of farming systems currently exist in the 3 agroecological zones of Kampong Thom province due to water accessibility. The high fertilizers and pesticides used were found in dry-season rice, cashew nuts, corn, cassava, early-season rice, and rainy-season rice system. Dry season rice and corn can be considered as the direct pollution practice according to the high frequency of cultivation cycle and location close to the water source, while the others may pollution indirectly due to the far distance from water sources. The result of the logit model identified four factors influencing the low use of fertilizer (N-urea), herbicides, and insecticides which include growing season, crop rotation, household labor, and cultivation time per year. This study suggests that the government, extension services, and local NGOs, may need to be strengthened and frequently demonstrate suitable farming practice to promote sustainable agricultural development in the area and focuses more on farm types that are close to water sources and have a high frequency of cultivation per year which is easily contaminate water sources. To reduce the impact of water contamination, the agricultural extension policy should promote more about the appropriate fertilizers, herbicides, and insecticides utilization and introduce crop rotation practices to reduce the fertilizers, herbicides, and insecticides usage by the farmers in the study area. The cropping intensity or cultivation during the dry season in the study areas close to the river or irrigation system or upstream should apply the suitable use of fertilizers and pesticides or prior training on good agricultural practices to reduce the excessive application of fertilizers, herbicides, and insecticides.

Kasetsart University. Office of the University Library

Address: Bangkok

Email: tdckulib@ku.ac.th

Name: Isriya Bunyasiri

Role: Thesis Advisor

Name: Prapinwadee Sirisupluxana

Role: Thesis CO-Advisor

Name: Didier Pillot

Role: Thesis CO-Advisor

Created: 2022

Modified: 2025-07-22

Issued: 2025-07-22

วิทยานิพนธ์/Thesis

application/pdf

URL: https://www.lib.ku.ac.th/KUthesis/2565/linna-nga-all.pdf

CallNumber: S471.C16 .N43

eng

Spatial: Cambodia Kampong Thom.

Spatial: Cambodia Kampong Thom.

Spatial: Cambodia Kampong Thom.

DegreeName: Master of Science

Level: Master's Degree

Descipline: Agricultural and Resource Economics

Grantor: Kasetsart University

©copyrights Kasetsart University

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