منابع مشابه
Rice, fish, and the planet.
I n 2002, the United Nations Food and Agriculture Organization launched a program to recognize “globally important agricultural heritage systems” (1). However, so far, only eight systems have been included (1). In PNAS, the work by Xie et al. (2) reports the results of a 5-yr study of one of the systems, a farming system in south China, where for over 1,200 y, farmers have grown an indigenous s...
متن کاملthe stady and analysis of rice agroclimatology in lenjan
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...
15 صفحه اولMore Rice for People More Water for the Planet
ed from: Nguyen Xuan Nguyen et al. (January 2010). Study on adoption of the System of Rice Intensification in Northern provinces of Vietnam. A report by commissioned by Oxfam America. On average, each woman from an SRI Farmer Field School promotes 5-8 other farmers to adopt SRI while the rate is only 1-3 for male graduates. Top: FFS graduates in Dông Trù village, Hanoi province, undertake SRI t...
متن کاملImpacts of different rice-fish-prawn culture systems on yield of rice, fish and prawn and limnological conditions
An experiment was conducted to determine the impact of fish and prawn culture on some physicochemical parameters of water, weeds, benthos, and rice yield under simultaneous method for a period of 5 months from July to November 2007. The experiment was comprised of five individual treatments having three replicates for each. The treatments were: rice combined with fish and regular urea fertiliza...
متن کاملCan the co-cultivation of rice and fish help sustain rice production?
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...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2011
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1117707109