Herbicide discharge from rice paddy fields by surface runoff and percolation flow: A case study in paddy fields in the Lake Biwa basin, Japan
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چکیده
منابع مشابه
Methane and nitrous oxide emissions from rice paddy fields
Recent field studies in rice paddy fields in Japan and China have shown that N2O is emitted to the atmosphere not only after the application of nitrogen fertilisers under flooded conditions but also in a period from the final drainage to submergence in the following rice-growing season through nitrification or denitrification. Those results clearly indicate that CH4 and N2O emissions in rice pa...
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Microbial production in anoxic wetland rice soils is a major source of atmospheric CH4 the most important non-CO2 greenhouse gas. Much higher CH4 emissions from well managed irrigated rice fields in the wet than in the dry season could not be explained by seasonal differences in temperature. We hypothesized that high CH4 emissions in the wet season are caused by low grain to biomass ratios. In ...
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'Whitmore's diScSlSe', 'morphia injector'8 septi-caemia', 'the great mimicker' and 'Vietnamese time-bomb' are some of the more colourful names which have been given to melioidosis since it was lirst described inBurma by WHITMORE & KRISHNASWAMI (1912). Pzz&monus pseudmllei has caused outbreaks of infection amongst animals in such diverse settings as a Hong Kong dolphinarium and zoos in Paris (GA...
متن کاملNew records of heterocystous Cyanophyta from paddy fields of Iran
Four paddy fields in Guilan province in the north of Iran seasonally were sampled from April 2008 to January 2009. Twenty-two morphospecies belonging to three families of the heterocystous blue-green algae were identified. Fourteen species and one variety of these taxa are new record for Iran. Among the families Nostocaceae with six genera and 16 species showed the highest species richness.
متن کاملCyanobacteria from paddy fields in Iran as a biofertilizer in rice plants
In this research cyanobacteria (Blue-Green Algae, BGA) were isolated, identified, multiplied and used as an inoculum in pot rice experiment. The pH, moisture and algal population were measured in four seasons. The highest and lowest pH (6.7, 6.2), moisture of soil (43%, 34%) and algal population (12, 20 Colony-Forming Units/50 ml on A and B medium and 4, 5 Colony-Forming Units/50 ml on A and B ...
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ژورنال
عنوان ژورنال: Journal of Pesticide Science
سال: 2018
ISSN: 1348-589X,1349-0923
DOI: 10.1584/jpestics.d17-061