This work is a trans-disciplinary undertaking aiming at innovative water management in arid and semi-arid regions. Based on field studies on soil bacterial communities and irrigation water quality in an arid region of...
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This work is a trans-disciplinary undertaking aiming at innovative water management in arid and semi-arid regions. Based on field studies on soil bacterial communities and irrigation water quality in an arid region of China where wastewater has been used for agricultural production decade long, this paper is intended to propose an integrative management scheme combining wastewater reuse in agriculture, wise use of wetlands and fertilizer management as an engine toward achieving sustainable development in arid and semi-arid regions. This study was also designed to address a key but very much neglected question about wastewater reuse in irrigation: does wastewater irrigation lead to reduction of chemical fertilizer use and increase of crop yield? Through a questionnaire, it revealed that there was a misperception among farmers about wastewater, which led to no-reduction or even increase in fertilizer use with wastewater irrigation as compared with river water irrigation. It also showed that crop yield was not increased with wastewater irrigation under the current practice. Besides, it sheds some light on an underreported health concern.
Known as the " food of grain",chemical fertilizer plays a very important role in increasing the output of agricultural products. In the meantime,its negative externalities such as soil and water environment pollutions...
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Known as the " food of grain",chemical fertilizer plays a very important role in increasing the output of agricultural products. In the meantime,its negative externalities such as soil and water environment pollutions as well as the quality and safety hazards caused to agricultural products have been revealed gradually. Taking 126 farmer households in 5 counties( districts) of Anhui Province as samples,the fertilizer application behaviors of farmer households are analyzed. Research shows that farmers applying fertilizer are generally older in age with relatively lower degree of education,inveterate farming habits and small area of cultivation. Besides,the farmer households wish to receive training and guidance on techniques of fertilization,but very few of them have attended the trainings on agricultural technology. Moreover,the individual characteristics and family factors of farmer households have a significant impact on their fertilizer application behaviors. And the degrees of impact are also different for the fertilizer applying behaviors in different stages. Therefore,improving the educational level of farmer households,strengthening the training and promotion of agricultural techniques and accelerating land transfer among farmer households will play a fundamental role in regularizing the fertilizer application behaviors of farmer households and improving the quality and safety of agricultural products.
CNOOC Limited(HK:0883)announces netprofit soared 42.0% to RMB44.4 billion in2008,hitting historic record and maintainingthe growth for eight consecutive years sinceits listing,which is driven by production increaseand...
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CNOOC Limited(HK:0883)announces netprofit soared 42.0% to RMB44.4 billion in2008,hitting historic record and maintainingthe growth for eight consecutive years sinceits listing,which is driven by production increaseand higher prices of oil and *** and gas sales boosted 38.1% to RMB100.83 billion in *** reached RMB0.99,ayear-on-year increase of 37.5%.
Sinochem Corporation has entered into a Heads of Agreement with Nufarm Limited in relation toa non-binding proposal for Sinochem to acquire all of the issued ordinary shares in Nufarm by wayof a scheme of arrangement....
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Sinochem Corporation has entered into a Heads of Agreement with Nufarm Limited in relation toa non-binding proposal for Sinochem to acquire all of the issued ordinary shares in Nufarm by wayof a scheme of arrangement. Sinochem announced on September *** acquisition of Nufarm, should it proceed, is consistent with Sinochem’s strategy to becomea leading global company in the total crop protection value chain including R & D, production,
CPCIA reported the economic recovery ofChinese petrochemical industry speeded upin September, with high growth in productionand improvement in operation rate. Demandfor some major chemicals went warmer,prices remained...
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CPCIA reported the economic recovery ofChinese petrochemical industry speeded upin September, with high growth in productionand improvement in operation rate. Demandfor some major chemicals went warmer,prices remained steady, the investment in theindustry increased continuously at a highspeed and the year-on-year drop in importsand exports was narrowed.
Nanjing Redsun Co., Ltd.(SZ: 000525) saidon February 3rd that it would spendRMB474.38 million to build achlorfluazuron and pymetrozine project inphases, as part of the company’s plan forsustainable development and an...
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Nanjing Redsun Co., Ltd.(SZ: 000525) saidon February 3rd that it would spendRMB474.38 million to build achlorfluazuron and pymetrozine project inphases, as part of the company’s plan forsustainable development and answer to thedevelopment trend in the pesticide *** project, to be funded by internalcapital, will use pyridine derivatives andbenzene heterocycles as raw materials toproduce chlorfluazuron and pymetrozine.
Chinese authorities raised the power pricefor yellow phosphorus makers, effectiveJune 1st, by 50% or 100%, indicating thatthe government hopes to control the overcapacityin this energy-intensive *** possibly causes a ...
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Chinese authorities raised the power pricefor yellow phosphorus makers, effectiveJune 1st, by 50% or 100%, indicating thatthe government hopes to control the overcapacityin this energy-intensive *** possibly causes a new round of regroupingin this industry that has already withstoodthe pain that triple overcapacitybrought *** leading phosphorus companiesexpect more elimination than
According to the latest report of CPCIA,driven by the improved macro economy,China’s petroleum and chemical industry acceleratedits recovery steps in August, featuredwith increased output, narrowed fall ofproduction ...
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According to the latest report of CPCIA,driven by the improved macro economy,China’s petroleum and chemical industry acceleratedits recovery steps in August, featuredwith increased output, narrowed fall ofproduction value, recovered demand for majorbulk chemicals, steady prices and the rapidlygrew investment. However, some sectorsin this industry operated well bellow theirfull capacities, the petrochemical market werestill dull, exports were blocked, and the investmentin some oversupply sectors in-
Shaanxi Xinghua Chemical Co.,Ltd.(Xinghua Chemical,SZ:002109) is located in Xianyang of Shaanxi *** is the biggest ammonium nitrate producer in *** to the company’s 2007 performance statement,its 2007 operat-ing reve...
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Shaanxi Xinghua Chemical Co.,Ltd.(Xinghua Chemical,SZ:002109) is located in Xianyang of Shaanxi *** is the biggest ammonium nitrate producer in *** to the company’s 2007 performance statement,its 2007 operat-ing revenue was RMB667 million,a drop of 2.31% from 2006,the net profit was RMBll3 million,an increase of 5.45% andEPS was *** company’s ammonium nitrate capacity has reached
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