Abstract

Integrated research efforts are needed to provide insights for simultaneously achieving food production and environmental goals in rice production systems. In this study we evaluated eight Sustainable Rice Platform performance indicators (net profit, labor productivity, grain yield, water use efficiency, nitrogen use efficiency, phosphorus use efficiency, pesticide use efficiency, and greenhouse gas emissions) for 65 rice farmers in Peru. The aim was to 1) identify the major management factors influencing profitability, 2) evaluate potential tradeoffs between economic and environmental sustainability, and 3) understand farmer perceptions and decision-making processes related to profitability. For data analysis, farmers were grouped into profitability categories based on net profit: top (top 20%), middle (middle 60%), and bottom (bottom 20%). Our results indicate that rice yields, grain sale price, and total spending drive profitability in this region of Peru. An important finding is that the top profitability group achieved higher yields while using lower inputs of labor, pesticides, elemental P, and irrigation hours, resulting in improved environmental performance (e.g. higher nutrient and water use efficiency and lower greenhouse gas emissions). Results from focus group discussions highlighted that rice production has changed in recent decades, and there is a need for improved extension support to cope with increasing pests, disease, and water scarcity. Moreover, farmers indicated they are vulnerable to exploitation from vendors along the rice supply chain, with limited access to credit facilities and market channels and little negotiating power over the cost of inputs and rice sale price. Overall, our results suggest that rice productivity and profitability can be improved in this region without negatively influencing environmental footprint per unit production, yet this is unlikely to occur unless key agronomic and socioeconomic challenges are addressed, such as improved access to crop management recommendations, alternative financing and credit options, and technologies that decrease the costs of production.

Highlights

  • Rice (Oryza sativa L.) is a major source of calories for nearly half the world’s population and a livelihood source for over one billion people (Van Nguyen and Ferrero, 2006)

  • The objectives of this study were to (1) investigate the economic performance of smallholder rice farming systems of Peru to identify the major factors influencing profitability, (2) evaluate environmental sustainability using Sustainable Rice Platform (SRP) performance indicators and assess relationships with economic outcomes, and (3) understand perceptions and barriers to increasing productivity and profitability based on discussions of research findings with local farmers

  • Farms were characterized by high mean production costs (1,793 $ ha−1), more than 2-fold than production costs observed in flooded regions in Vietnam, Myanmar, Thailand, and Sri Lanka (Devkota et al, 2019)

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Summary

Introduction

Rice (Oryza sativa L.) is a major source of calories for nearly half the world’s population and a livelihood source for over one billion people (Van Nguyen and Ferrero, 2006). Starting with The Green Revolution, the use of technologies, such as improved seed, irrigation and the intensive use of fertilizers and pesticides, has increased global rice yields by 130% from 1966 to 2000 (Khush, 2005). During this period, populations of underdeveloped countries grew by 90%, food prices consistently decreased, and an estimated 18 million hectares (ha) of agricultural land was spared from cultivation (Khush, 2005; Stevenson et al, 2013). Given the dependence of millions of small-scale farmers on rice production as a livelihood strategy, understanding the major factors influencing profitability in specific biophysical, political, and socioeconomic contexts is necessary to inform the development of effective agricultural research and extension programs

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