This study examined the impact of improved rice varieties adoption on rice productivity and farming households’ welfare in Nigeria using a cross sectional data of 481 rice farmers drawn from three states to represent the major rice producing ecologies (Irrigated, upland and lowland) in Nigeria. Access to seed was found to be one of the significant determinants of adoption. Poverty incidence was...

The increasing release of untreated fish farming effluents into water courses that flow to the Pantanal wetlands in Mato Grosso (Brazil) may drive this ecosystem to eutrophication. Therefore, the growth of Azolla caroliniana Willd. and Salvinia auriculata Aubl. in fish farming effluent and their effect on its quality were evaluated for 48 days in a greenhouse. The results were compared to those...

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Beyond the conventional role of providing food, rice farming in European Mediterranean wetlands performs a valuable non-marketable function related to the provision of environmental services. Rice and biodiversity are jointly produced, so that provision of flooded-rice-fields based environmental services depends crucially on private profitability of rice farming. Recent reforms of the Common Ag...

Research Paper Freshwater fish farming has become a promising and gainful methodology to attain self-sufficiency in food sector and also to create diverse livelihood opportunities of rural people in Bangladesh. Information on socioeconomic framework of the fish farmers forms a good base for successful implementation of developmental program of the economically backward sector. The present study...

Research Paper Freshwater fish farming has become a promising and gainful methodology to attain self-sufficiency in food sector and also to create diverse livelihood opportunities of rural people in Bangladesh. Information on socioeconomic framework of the fish farmers forms a good base for successful implementation of developmental program of the economically backward sector. The present study...

abstract     the major constraints of agricultural production in the south western coastal areas of bangladesh are soil and water salinity of varying degrees, lack of fresh water for irrigation, slow soil drying pattern which are being augmented further due to climate change, requires suitable options of farming systems and component technologies. the major constraints and potentials of agricul...

Because rice feeds half of the world's population, a secure global food supply depends on sustainable rice production. Here we test whether the co-cultivation of rice and fish into one "rice-fish system" (RFS; fish refers to aquatic animals in this article) could help sustain rice production. We examined intensive and traditional RFSs that have been widely practiced in China. We found that rice...

Fish farming has seriously influenced the aquatic environment in Sancha reservoir in SW China since 1985 and has been strongly restricted since 2005. Thus, phosphorus speciation in a sediment core dated between 1945 and 2010 at cm-resolution and in surface sediments from Sancha reservoir may allow us track how fish farming impacts phosphorus dynamics in lake sediments. Fish farming shifts the m...