Farm-level management systems for green manure crop in Asian rice environments

• Main Authors: Garrity D.P, Flinn J.C
• Format: Conference Proceeding
• Language: English
• Published: 1988
• Subjects: abonos verdes; analisis de costos y beneficios; analyse cout avantage; asia; asie; cost benefit analysis; cropping patterns; cultivo de temporal; culture pluviale; engrais vert; green manures; irrigated land; ordenacion de cultivos; oryza sativa; plan de culture; rain fed farming; regadio; terre irriguee

Little comparable information is available on characteristics of farm-level green manure production systems practiced in Asian countries. A regional survey of current green manure management systems was conducted to develop a uniform database for cross-country comparison. The environmental niches and cropping patterns into which green manure crops fit were documented. An analysis of establishment practices and biomass incorporation methods highlighted widely differing methods. The overall benefits and costs of green manure use were examined. Green manure seed costs varied greatly among countries. The major determinants of profitability are land preparation and incorporation costs and yield effects on the rice crop. Current use of green manure crops is primarily in irrigated areas. Rainfed areas that experience early season waterlogging may have the greatest potential for green manure technology.