Recherche dans la base de données
Rice-duck and rice-fish co-culture systems are a major production systems in rice paddy fields in Southern China. Studying methane and nitrous oxide emissions and their economic value from those ecosystems can provide a theoretical and practical basis for further development and utilization of such traditional techniques.
Methane and nitrous oxide emissions...
China
article de journal
2009
The integrated rice-duck co-culture is a type of integrated production system used in paddy fields and a major model of planting and breeding in south China, opening a new way of sustainable development for rice and waterfowl production. This paper discusses the effects of stocking rates of ducks on the...
China
article de journal
2009
A field experiment on nitrogen dynamics and cycling in integrated rice-duck and rice-fish ecosystems in subtropical region of China was conducted from May to September in 2007. The experiment field was equally divided into nine plots for three different treatments: conventional rice field (CK), integrated rice-duck ecosystem (RD) and rice-fish...
China
article de journal
2008
Effects of fertilizer treatments on ecological environment and yield of zizania-rice rotation system
Zizania-rice rotation system was established and treated by 3 fertilizing methods. We analyzed the effects of fertilizer treatments on the environment and crop yield of zizania-rice rotation system. Results showed that the organic fertilizer was beneficial to zizania-rice rotation system both in ecological terms and for soil fertility. Soil in...
China
article de journal
2011
The growth conditions of three kinds of aquatic plant was researched in purification experiments. We analyzed three different concentrations of eutrophic water and three species of aquatic plants, namely Acorus calamus, Typha orientalis and Iris tectorum. Nitrogen and phosphorus removal capacity of eutrophic water were analyzed.
The results showed that Typha...
China
article de journal
2012
The Huangpu River, a source of drinking water, has been highly contaminated in recent years by fertilizer-rich agricultural drainage from extensive fertilizer uses in vegetable farms for high yields in the suburbs of Shanghai. A fertilizer-use reduction experiment (between 20 and 40%), in combination with a newly composed mixture of...
China
article de journal
2012
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