−The objective of this study was to examine the light and heavy metals on the fruit body growth of Cordyceps militaris in the rice-based cultivation. Since heavy metals are commonly detected in the paddy field, we investigated the effect of lead, cadmium and mercury on the rice grain-based cultivation of C. militaris. Cordycepin and cordycepic acid were determined by HPLC method. The result sho...

Mass balance analysis and water quality model development for paddy field were performed using field experimental data during 2001-2002. About half (47-62%) of the total outflow was lost by surface drainage, with the remainder (490-530 mm) occurring by evapotranspiration. Most of nutrient inflow and outflow were mediated by fertilization and plant uptake, respectively. Nutrient outflow by surfa...

Rice, Oryza sativa, also known as paddy rice is produced by at least 95 countries around the globe with China and India are the largest producers of rice in the world; while Thailand, Vietnam and America are the largest world rice exporters. To sustain rice productivity, advance agriculture technologies have always been deployed to increase the productivity of this food grain. This is due to th...

the main purpose of this study was to analyze of communicative factors affecting in application of sustainable rice farming practices among paddy farmers of mazandaran province. the statistical population of consisted of paddy farmers of mazandaran province (n= 208839). according to cochran formula, a sample of 240 farmers was selected through cluster sampling method. to collect data, a questio...

(i) The quality of the rice, as judged by the fineness of the grain. (ii) The process through which the rice grain has passed in its removal from the paddy. (in) The digestibility of the rice?from seasoning. (iv) Its vitamine content. With regard to quality, the best rice is transplanted rice, reaped during the winter months?the avian crop. Grain of the aus crop is coarse and not of good qualit...

Contamination of soils with heavy metals is widespread and poses a long-term risk to ecosystem health. Abandoned and active mining sites contain residues from ore-processing operations that are characterised by high concentrations of heavy metals. The distribution and mobility characteristics of heavy metals (As, Cd, Cu, Pb, and Zn) in paddy soil samples from Kočani Field (Macedonia) using ICP-...

ABSTRACT- Energy use patterns and the contribution of energy input vary among farming systems. The optimal use of improved farm machinery coupled with the optimal use of other recommended sources permit an increase in paddy yield up to potential levels. In order to determine the effect of production systems on energy use efficiency focusing on mechanization for paddy production in Khuzestan pro...

Rice (Oryza sativa L.) feeds ∼3 billion people. Due to the wide occurrence of arsenic (As) pollution in paddy soils and its efficient plant uptake, As in rice grains presents health risks. Genetic manipulation may offer an effective approach to reduce As accumulation in rice grains. The genetics of As uptake and metabolism have been elucidated and target genes have been identified for genetic e...

Quantification of rice biophysical properties is important not only for rice growth monitoring and cropping management, but for understanding carbon cycle in agricultural ecosystems. In this study, a rice canopy scattering model (RCSM) was firstly utilized to simulate rice backscatter with a root mean square error (RMSE) <1 dB in comparison with the C-band, HH-polarization Radarsat-2 images. An...

Herbicides have made a large contribution to reducing the workload of crop production. While herbicides with various modes of action are currently used, sulfonylurea herbicides, which were developed starting in the 1970s, are in widespread use worldwide, and they hold the central position in weed control in Japan as paddy rice herbicides. However, as is the fate of agricultural chemicals that a...