introduction natural and artificial radionuclides are the main sources of human radiation exposure. these radionuclides, which are present in the environment, can enter the food chain. rice is one of the most important food components in iran. radionuclides by transferring from soil to rice and entering the human body can affect human health. materials and methods fourteen samples of different ...

Crop diversification is essential in lowland rice cropping systems to achieve sustainability, improve soil health, and as a climate-resilient practice reduce greenhouse gas (GHG) emissions. A life cycle assessment (LCA) was conducted for the farms west-coast region of India assess environmental impact rice–rice rice–cowpea systems. The (LCIA) evaluated “cradle-to-gate” perspective. higher energ...

Cultivation of Pleurotus ostreatus on different substrates such as rice straw, rice straw + wheat straw, rice straw+ paper, sugarcane bagasse and sawdust of alder was investigated. All the substrates except rice straw were supplemented with 10% rice bran. The substrate without supplement was considered as control. The effects of various substrates on mycelial growth, colonization time, primordi...

Mini combine harvester is a modern machine used for cutting rice, threshing and cleaning grain while walking in the field. This helps farmers where, time energy to harvest more efficiently does not require large amount of labor like traditional (manual) harvesting. study aimed calculate determine working capacity mini calculated work efficiency machine. The method this research was experimental...

The objective of this paper is to apply the Translog Stochastic Frontier production model (SFA) and Data Envelopment Analysis (DEA) to estimate efficiencies over time and the Total Factor Productivity (TFP) growth rate for Bangladeshi rice crops (Aus, Aman and Boro) throughout the most recent data available comprising the period 1989-2008. Results indicate that technical efficiency was observed...

The excessive use of nitrogen (N) fertilizers in sustaining high rice yields due to N dynamics in tropical acid soils not only is economically unsustainable but also causes environmental pollution. The objective of this study was to coapply biochar and urea to improve soil chemical properties and productivity of rice. Biochar (5 t ha(-1)) and different rates of urea (100%, 75%, 50%, 25%, and 0%...

In rural Bangladesh, average rice consumption per capita has remained almost constant for the past two decades. Rice contributes about 80 percent of total daily energy intake with no significant variations among seasons, sex, or age groups. Surveys have shown that the Bangladeshi rural people prefer specific rice varieties for different purposes. While price is a very important determinant for ...

China imports most of its potassium (K) requirements for crop production. The objective of this study was to evaluate indica rice hybrids for Kuse efficiency. Twenty-eight indica rice hybrids were evaluated in nutrient solution. The K influx rate was greatest in genotype Weiyou 64 (684.9 nmol K plant h) and least in genotype Xie A/909 (457.2 nmol K plant h). The K-use efficiency was greatest in...