خيارات البحث
النتائج 1 - 10 من 5,744
Relationship between crop growth rate at different stages and yield in non-photoperiod sensitive rice variety | ความสัมพันธ์ระหว่างอัตราการเจริญเติบโตที่ระยะต่าง ๆ และผลผลิตในข้าวพันธุ์ไม่ไวต่อช่วงแสง
2011
Pornpen Somchit(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Program in Crop Production Technology) | Nittaya Phakamas(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Program in Crop Production Technology)
Preliminary study of quantitative ratio of Nile tilapia found in KMITL fish tech farm, Nile Chitralada and O. mossambicus | การศึกษาเบื้องต้นเกี่ยวกับสัดส่วนเชิงปริมาณเบื้องต้นของปลานิลในเคเอ็มไอทีแอล ฟิชเทคฟาร์ม ปลานิลจิตรลดาและปลาหมอเทศ
2011
Darin Daengrit(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Program in Agricultural Biotechnology) | Rungtawan Yomla(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Program in Animal Production Technology and Fisheries)
Biosorption of acid dye benewol red by red alga Gracilaria fisheri
2011
Kawin Pansamrit(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Division of Animal Production Technology and Fisheries. Program in Fisheries Science) | Atiya Saparnklang(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Division of Animal Production Technology and Fisheries. Program in Fisheries Science) | Suneerat Ruangsomboon(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Division of Animal Production Technology and Fisheries. Program in Fisheries Science)
To evaluate the ability and potential use of red alga, Gracilaria fisheri to remove acid dye (Benewol Red) from synthetic wastewater, the optimum conditions and kinetics of this alga for acid dye removal were studied. The results showed that the optimum pH for acid dye removal by G. fisheri was 3. The adsorption of acid dye was very rapid and reached equilibrium within 6 h with adsorption capacity 40.31+-0.35 mg/g dry wt. Elevated biomass concentration decreased acid dye uptake (mg/g dry wt.) by this alga. Acid dye adsorption by G. fisheri followed Langmuir adsorption isotherm (r sup(2)=0.924) with the maximum dye adsorption capacity (Qmax) 484.13 mg/g dry wt. and adsorption constant (Ka) 0.007 L/mg. Adsorption kinetic of acid dye removal by this alga followed the second order rate reaction and intraparticle diffusion was likely the rate-limiting step. The rate of intraparticle diffusion increase when the initial concentrations of acid dye increase.
اظهر المزيد [+] اقل [-]MS1 soybean breeding cycle of group selection and practice | 大豆ms1轮回群体选择育种研究的探索与实践_
2011
Zhao Zhigang, National Academy of Sciences, Institute of Agriculture and Forestry Crop Soybean Production Technology System Integrated Test Station in Yinchuan, Yinchuan (China) | Luo Ruiping, National Academy of Sciences, Institute of Agriculture and Forestry Crop Soybean Production Technology System Integrated Test Station in Yinchuan, Yinchuan (China) | Ma Xianjun, Ningxia Agricultural Reclamation Warm Springs Agricultural Company, Yinchuan (China)
通过3年对引进的大豆ms1轮回群体基础材料基因的丰富和对轮回群体内优良单株的精心选择,逐步形成适宜宁夏当地生态类型区域的春大豆ms1基础群体(LD)和成熟期相差15 d左右的3个大豆亚群体。 | The gene of the soybean ms1 group material was enriched and superior individuals were selected carefully in 3 years. Spring soybean ms1 (LD) and 3 soybean subgroups which were adapt to the local ecology in Ningxia were gradually formed._
اظهر المزيد [+] اقل [-]Fires in agricultural production buildings
2011
Kaustell, Kim | Maa- ja elintarviketalouden tutkimuskeskus (MTT) / TAL Taloustutkimus / Talous- ja yhteiskuntatieteellinen tutkimus (TAY) | NJF
v | ok
اظهر المزيد [+] اقل [-]Polyploid induction in physic nut (Jatropha curcas Linn.)
2011
Sang-in, V.(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Department of Plant Production Technology) | Arunyanart, S.(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Department of Plant Production Technology) | Saetiew, K.(King Mongkut's Institute of Technology Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology. Department of Plant Production Technology) | Hongtrakul, V.(Kasetsart University, Bangkok (Thailand). Faculty of Science. Department of Genetics)
PROBLEMS OF RISK MANAGEMENT IN AGRICULTURAL PRODUCTION
2011
Radovan Pejanović | Vladimir NJegomir
Agricultural production is characterised by permanent exposure to variabilities that result from seasonal temperature changes, droughts, floods, policies changes, etc. The aim of the paper is to determine risk exposures in agriculture and methods for risk management in a simplified and holistic way. Research results indicate that all risks can be grouped into regulatory, market and production. The methods of risk management depends on the type of risks. Having considered that risk management is not necessarily directed towards reduction of potential dangers but also towards taking advantage of possible profitable opportunities, understanding and successful application of different alternatives presented in the paper can facilitate the creation of farmers sustainable business success in the long run.
اظهر المزيد [+] اقل [-]Analysis of agricultural production instability in the Gezira scheme
2011
Mohamed Elamin Abd Ellatif Mahir | Hag Hamad Abdelaziz
The study was conducted to measure the extent of instability and contribution of different components to change in mean production of the main crops grown in the Gezira scheme. The study used time series data covering the period before the adoption of liberalization policy (1970/71 to 1991/92) and the period after the adoption of liberalization policy (1992/93 to 2007/08). The main crops included in the study were sorghum, wheat, cotton and groundnuts. The instability of area, yield and production were determined, in addition to the analysis of different components of the sources of change in the mean production of crops. The findings of the study showed that sorghum, wheat and cotton witnessed a continuous increase in instability over the two periods, whereas there was a decrease in the instability of groundnuts production during post-liberalization period. The instability in area and yield of all crops moved in the same direction and their increasing/decreasing trend resulted in increase/decrease in instability. The decomposition analysis of sources of change in mean production of crops indicated that changes in mean yield accounted for large shares of the change in mean production of wheat and sorghum but change in mean area contributed largely in cotton and groundnuts. Furthermore, the analysis showed that changes in the variance of yield accounted for large share of changes in the variance of production for sorghum, while for wheat the large share was due to variance of area. The changes in the residual term were important in explaining the changes in the variance of production in the case of groundnuts. Programs and policies such as rehabilitation of irrigation canals, provision of inputs and strengthening the agricultural research and extension can play a vital role in achieving stability in the agricultural production in the Gezira scheme.
اظهر المزيد [+] اقل [-]Indirect energy input of agricultural machinery in bioenergy production
2010 | 2011
Mikkola, Hannu J. | Ahokas, Jukka | Maa- ja elintarviketalouden tutkimuskeskus (MTT) / KTL Kasvintuotannon tutkimus / Jokioinen (KTJ) | University of Helsinki / Department of Agrotechnology
v | 2010 | ok | KAT | KVI
اظهر المزيد [+] اقل [-]Website development for media production in agricultural extension work
2011
Thanagrit Chompoonuch(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Agricultural Information Technology) | Supaporn Thaipakdee(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Agricultural Extension and Communication) | Siripattra Muanmarrai(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Liberal Arts and Sciences. Department of Mathematic Statistics and Computer)
