نتایج جستجو برای: paddy workers

تعداد نتایج: 120393  

2013

The basic objective of this paper is to measure and compare the profitability of investments made by the small and marginal farmers of the state of West Bengal in floriculture shifting from the traditional cultivation of paddy. A comparison of IRR is made to establish the fact that cultivation of flowers yield higher returns farmers whose land size is so small that viability of paddy cultivatio...

2008
Dong Liu Qiang Fu Yongsheng Ma Aihua Sun

The rapid increase of paddy field acreage has led to widely descending of groundwater table in well irrigation paddy area of low-land in Sanjiang Plain recent years. More and more “hanging pump” and partial over pumping phenomenon have been occurring in well irrigation paddy area of low-land. Therefore, the groundwater resources in Sanjiang Plain need to be recharged urgently. For solving the m...

2014
Zhenwei Qiu Hongen Jiang Jinlong Ding Yaowu Hu Xue Shang

Pollen and phytolith analyses were undertaken at the Jiangli site in Suzhou, Jiangsu Province, combined with studies on macrofossils by flotation. The concentration of pollen decreased while the percentage of Poaceae pollen in the profile increased from the late phase of the Majiabang Culture to the Songze Culture suggesting that human impact on the local environment intensified gradually. The ...

2016
Wm. A. Justice

cannot be had ; so I began enumerating all the waste products I could think of to replace it. As regards saw-dust, I knew of no quantity sufficiently large for the purpose. Paddy husking I knew was fairly common as a trade in the presidency, but I knew also that straw had been replaced in England by moss litter as stabling for horses and therefore concluded that straw or paddy husking were not ...

RH Kuruppuge RPIR Prasanna SWGK Bulankulama

This study focused to identify the likelihood factors affecting on farmers’ higher gain from paddy marketing in the North Central Province of Sri Lanka, where the main paddy cultivation area of the country. The required data was drawn from the field survey carried out in three irrigation systems covering 257 farmers during July to August 2010. The empirical logit model was used to assess factor...

Journal: :Bioscience, biotechnology, and biochemistry 2003
Bi-Zhen Zou Kiyoshi Takeda Akio Tonouchi Shinji Akada Takashi Fujita

The number of syntrophic butyrate-degrading bacteria in a flooded paddy field soil was 1.7 x 10(3) MPN/g dry soil. Butyrate was degraded to acetate and methane when paddy soils were incubated anaerobically with the addition of butyrate. However, butyrate degradation was completely suppressed by the addition of the specific inhibitor of methanogenesis, 2-bromoethanesulfonate (BES) to the soil. A...

Journal: :JNW 2014
Shaoxiong Zheng Weixing Wang Baoxia Sun Gang Lei

This paper designs a WSN gateway for environmental monitoring of paddy field, which includes the hardware structure and the software program. We use the MSP430F149 as the core of the gateway node and the nRF905 as the peripherals equipment for node communication. We choose TDR-3, a soil moisture sensor, and DHT22, a temperature-humidity sensor, to collect and process the environmental informati...

Journal: :Ecotoxicology 2011
Wan-Yi Liu Ching-Yuh Wang Tsu-Shing Wang Gary M Fellers Bo-Chi Lai Yeong-Choy Kam

Butachlor is the most commonly used herbicide on paddy fields in Taiwan and throughout Southeast Asia. Since paddy fields provide habitat for pond breeding amphibians, we examined growth, development, time to metamorphosis, and survival of alpine cricket frog tadpoles (Fejervarya limnocharis) exposed to environmentally realistic concentrations of butachlor. We documented negative impacts of but...

2012
Megumi Yoshida Satoshi Ishii Daichi Fujii Shigeto Otsuka Keishi Senoo

Denitrification occurs markedly in rice paddy fields; however, few microbes that are actively involved in denitrification in these environments have been identified. In this study, we used a laboratory soil microcosm system in which denitrification activity was enhanced. DNA and RNA were extracted from soil at six time points after enhancing denitrification activity, and quantitative PCR and cl...

2014
Zhenwei Qiu Hongen Jiang Jinlong Ding Yaowu Hu Xue Shang

Pollen and phytolith analyses were undertaken at the Jiangli site in Suzhou, Jiangsu Province, combined with studies on macrofossils by flotation. The concentration of pollen decreased while the percentage of Poaceae pollen in the profile increased from the late phase of the Majiabang Culture to the Songze Culture suggesting that human impact on the local environment intensified gradually. The ...

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