Barriers to Agro-Ecological Intensification of Smallholder Upland Farming Systems in Lao PDR
作者： Von Yi Yap , Phaeng Xaphokhame , Andreas de Neergaard , Thilde Bech Bruun
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摘要: Intercropping of legumes can be a strategy to improve soil fertility and enhance overall productivity while reducing dependency on external inputs in intensified cropping systems. Integration maize-based systems is promoted as an agro-ecological intensification option for input-constrained smallholders uplands Southeast Asia, but adoption rates the region remain low. The aim this study was assess suitability trade-offs integrating ricebean smallholder upland areas Northern Laos. We conducted researcher-managed field trial investigate agronomic performance ricebean/maize intercropping, farmer-managed trials combined with surveys (N = 97), focus group discussions 10 villages understand factors influencing farmers’ decision making concerning adoption. Drought, rat infestation crop damage by grazing livestock were identified important constraints production ricebeans. Factors facilitating included improvement fertility, potentially high selling price ricebeans presence extension agents, barriers labour shortage, concerns about competition maize lack market outlet produce. conclude that investigated maize/ricebean intercropping system poorly suited current conditions area, call farm-based studies focusing developing locally adapted legume able perform under variable rainfall conditions. Initiatives addressing challenges related free efforts link producers remote emerging markets are also needed.
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