نتایج جستجو برای: rice farms
تعداد نتایج: 94338 فیلتر نتایج به سال:
In Japan, greenhouse gas emissions from rice production, especially CH4 emissions in rice paddy fields, are the primary contributors to global warming from agriculture. When prolonged midseason drainage for mitigating CH4 emissions from rice paddy fields is practiced with environmentally friendly rice production based on reduced use of synthetic pesticides and chemical fertilizers, Japanese ric...
Since rice is a staple food most consumed world-wide, there have been increasing health concerns regarding exposure to arsenic through rice consumption. Several studies have reported the accumulation of arsenic in rice grains cultivated in regions with elevated levels of arsenic in groundwater or contaminated soil. Therefore the principal aim of this study was determining the amount of arsenic ...
This case study evaluates the potential of the system of rice intensification (SRI) to increase rice yields while reducing water consumption on subsistence farms in the province Veraguas in Panama. The aim of this project was to provide practical information on SRI to farmers in this province of Panama and to develop agronomic recommendations for SRI based on both farmers’ experiences and scien...
Iran’s agricultural sector comparing with the other economic sector suffers from subsistence method. Small farm size, scatter distribution of holdings, lack of an appropriate irrigation and drainage systems, and non-existence of roads between farms have led to increase in production costs and reluctance regarding agriculture activities and relevant investment. This in turn demands the implement...
Japan's rice sector is supported by high prices paid by consumers that allow many farm households to maintain small rice farms. Japan's government controls trade within a tariff-rate quota and imposes a prohibitively high tariff on imports outside the quota. Within Japan, diversion programs pay farmers to substitute other crops for rice since, without government-mandated diversion, supply would...
Rice is considered as one of the most strategic plants in Iran. The production of rice has been confronted with new challenges since the year of 2000, so the necessity of supporting policies implemented by all relevant authorities has been revealed more and more. Average rainfall records in Gilan province, a rice-favored tropical region, often show a range of 800 ml – 2000 ml with the latter nu...
the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...
This study uses a generalized stochastic frontier framework to model a multiple-output rice production system and analyses farm-level technical inefficiency of rice farming in Assam, India. Primary data for this study was collected in 2009-2010 from 310 farm-households in four non-contiguous districts of Dhubri, Morigaon, Dibrugarh, and Cachar that are located in different agro-climatic regions...
Data from farmer-managed fields have not been used previously to disentangle the impacts of daily minimum and maximum temperatures and solar radiation on rice yields in tropical/subtropical Asia. We used a multiple regression model to analyze data from 227 intensively managed irrigated rice farms in six important rice-producing countries. The farm-level detail, observed over multiple growing se...
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