Identifying pathways for an agroecological transition of Rice-based farming systems in Cambodia

Name: Sar Veng

LCSH: Kasetsart University -- Theses. M.S. (Tropical Agriculture) 2021

Classification :.LCCS: SB191.R5 .S28

LCSH: Kasetsart University. -- Department of Agriculture -- Theses

LCSH: Rice farming -- Cambodia

LCSH: Agricultural ecology -- Cambodia

LCSH: Soils -- Quality

Abstract: Rice is one of the main agricultural products of Cambodia. For the last 20 years the average rice yield has increased from 1.4 to 2.8 t.ha-1 . Conservation Agriculture (CA) was proposed to restore carbon transformation, nutrient cycling and structure maintenance to handle with the high demand of rice consumption and the intensively used of the plantation area. In this study, four cropping systems with conventional tillage (CT), CA cropping systems (CA7 ) and green manure management (CGM1 & 2) representing different stages of an agroecological transitions were assesses using Biofunctool® and soil physio-chemical analysis. Two locations in Stung Chinit (Kampong Thom) equipped with the irrigation and drainage system (IDS) and the wet season rice of Banan district (Battambang), representing the diversity of farming and cropping systems, soil type and hydrological patterns, were used as study sites. Feedbacks from farmers who adopted CA in the areas were collected and assessed. Findings portrayed a positive impact of soil indicators (soil organic carbon (SOC), Nitrogen (N), labile-C, basal soil respiration, water stable aggregates) at CA7 comparing to CT on 0-5 and 5-10 cm depths. Labile-C (POXC) and soil basal respiration were two to three times higher at CA7 comparing to CT at 0-5 cm depth. At 0-40 cm depth, CA7 exhibited a difference amount of SOC and N stocks of +8.38 Mg C.ha-1 and +1.14 Mg N.ha-1 respectively when comparing with other practices. Farmers’ feedbacks on both technical use (i.e., cover crops and notill planter) and organizational action (i.e., individual and collective) were assessed and positive impacts of cover crops and no-till planter were reported. Main issues were related to the control of fire (natural and intended) and free roaming despite the fact that collective action took place in Banan. Participatory approach provided a positive impact to help understand different farmers’ strategies when facilitating the collective learning/understanding and improving the land management (individual or collectively) process during the dry season. The positive impacts of the use of participatory tools a continuous support was required to transit agroecology and CA management to the farmers. There was also a need to identify business opportunities to attract other groups of stakeholders into these transitions.

Kasetsart University. Office of the University Library

Address: Bangkok

Email: tdckulib@ku.ac.th

Name: Kannika Sajjaphan

Role: Thesis Advisor

Name: Wutthida Rattanapichai

Role: Thesis CO-Advisor

Name: Florent Tivet

Role: Thesis CO-Advisor

Created: 2021

Modified: 2025-07-19

Issued: 2025-07-19

วิทยานิพนธ์/Thesis

application/pdf

URL: https://www.lib.ku.ac.th/KUthesis/2564/sar-ven-all.pdf

CallNumber: SB191.R5 .S28

eng

Spatial: Cambodia.

Spatial: Cambodia.

DegreeName: Master of Science

Level: Master's Degree

Descipline: Tropical Agriculture

Grantor: Kasetsart University

©copyrights Kasetsart University

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