Industrialized small-scale pig farming has been rapidly developed in developing regions such as China and Southeast Asia, but the environmental problems accompanying pig farming have not been fully recognized. This study investigated 168 small-scale pig farms and 29 example pig farms in Yujiang County of China to examine current and potential impacts of pig wastes on soil, water and crop qualit...

OBJECTIVE Determining Leptospira spp . antibody seroprevalence in an apparently healthy population and in groups at risk plus their associated factors in the town of Villavicencio in the Meta department of Colombia MATERIALS AND METHODS A cross-sectional epidemiological model was used (subjects being selected by convenience sampling). Blood-samples were obtained by cubital puncture from (n: 5...

Abstract Arsenic (As) and cadmium (Cd) are two toxic elements found in rice ( Oryza sativa L.) grain that pose threats to human health. While attention has focused on major rice‐growing regions, been grown small‐scale farms the northeastern United States since approximately 2005, but As Cd levels were not previously reported. Unpolished from these have mean of 0.12 mg kg −1 0.007 , more than 40...

Insufficient and high variability in rice yield is a threat to food security in China, prompting the need for strategies to mitigate yield variability and increase productivity. This study investigates the presence of production risk and technical inefficiency for a sample of rice farms in the Xiangyang city of China using a stochastic production frontier framework. Results from the risk functi...

A socio-economic study was carried out in two rice production environments (Gazipur and Tangail) to assess the comparative advantages of using urea super granule (USG) over prilled urea (PU) in modern rice production and to examine the differences in producers’ technical efficiency between USG user and nonuser in crop management. Stochastic frontier production model was employed to examine the ...

Background: Poultry droppings from poultry farms and rice husks obtained from rice milling process are generally considered as wastes and discarded in Nigeria. Although many studies have shown that microbial fuel cells (MFCs) can generate electricity from organic wastes, little or no study have examined MFCs for generating electricity from poultry droppings and rice husk as electrode material. ...

Farmers in developing countries have limited opportunities for borrowing to even out variability associated with risky farm income, but they can save. A dynamic programming model of savings is presented in the current paper which examines optimal savings strategies for farmers, using a case study of integrated rice-shrimp farms in Vietnam. It is shown that when savings are accounted for, the ex...

In the Mekong delta, inland fishing and rice production provided a major source of income for rural communities. Since early settlement, the inhabitants have caught fish. Still, fish provides the main source of animal protein in their daily diet (Madan et al. 2005). Fish are caught in flood plains and in rice fields. The wild fish catch has declined since 1970 (Gagauan & Arce 1992), as a result...

Rice has fed more people than any other crop has for thousands of years. The ancient Indian name for rice, Dhanya, means “sustenance for the human race.” Especially in much of Asia, life without rice has been unthinkable. Rice feeds more than half of the world population, but most rice is consumed within 10 miles of where it is produced. Rice is the 2nd largest crop in planting acreage after wh...