Soil Organic Carbon Dynamics under Short-term Conservation Agriculture Cropping Systems in Cambodia

Land degradation has been gradually expanded in Cambodia due to improper agricultural management practices. Conservation agriculture (CA) is a potential set of management practices to restore soil total N (STN), soil organic C (SOC) and SOC labile fractions (i.e., particulate organic C-POC, hot-water extractable organic C-HWEOC, permanganate oxidizable C-POXC), to increase soil enzyme activities and to enhance soil aggregation. This study aims at quantifying the changes in soil organic C, nitrogen, labile-C fractions, enzymatic activities and soil aggregation under conventional plow-based and no-till cropping systems for a Red Oxisol in Cambodia.

IPERCA: Innovative Pedagogical Resources in Conservation Agriculture in South-East Asia

The objective of IPERCA is to pool pertinent resources from Cambodia, France, and Brazil to target the CA-related educational and outreach constraints. The project aims at developing innovative pedagogical resources in the field of Conservation Agriculture and Ecological Intensification that fit and deal with the regional agricultural context.

SUNRICE

Molecular epidemiology of plant-parasitic nematodes Meloidogyne spp. associated with rice in Southeast Asia. Malyna Suong, PhD student (“ARTS -IRD ” Fellowship) Supervisor: Dr. Stéphane Bellafiore; Dr. Christophe Brugidou

SANREM CRSP: Sustainable Agriculture and Natural Resources Management

In 2009, the Cambodian Ministry of Agriculture and Forestry has hosted a research and development program led by North Carolina A&T, CIRAD and funded by the USAID through the Feed the Future Innovation Lab for Collaborative Research on Sustainable Agriculture and Natural Resources Management (SANREM), directed at local smallholders and based on conservation agriculture (CA) and diversified direct seeding mulch-based cropping (DMC) systems.

Changes in soil organic C, N, labile-C pool and soil microbial biomass-C in the lowland of Cambodia

The research aims (i) to investigate the impact of tillage (plow-based and no-till) and cropping systems on rice yield, (ii) to evaluate the impact of conventional tillage and CA systems on total soil organic C, nitrogen and labile-C pool, and (iii) to quantify the impact of tillage and cropping systems on soil microbial biomass-C.