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| Nunkaew,Tomorn; Kantachote,Duangporn; Nitoda,Teruhiko; Kanzaki,Hiroshi. |
| The aims were to explore an appropriate isolating medium for obtaining purple nonsulfur bacteria (PNSB) for use as biofertilizers in saline paddy fields and to obtain pure cultures. We therefore chose a defined isolating medium containing 0.25% NaCl, (Glutamate-Acetate broth, GA) and a rice straw broth to compare them for numbers of PNSB obtained, time to obtain pure cultures, diversity and costs. A total of 30 water and 30 sediment samples were collected from saline paddy fields in southern Thailand and used to isolate PNSB in both the isolating media. Based on 60 samples and a period of 13 days incubation under anaerobic light conditions, a greater number of samples produced PNSB growth in GA broth after only day 3; however, after that the rice straw... |
| Tipo: Journal article |
Palavras-chave: Biofertilizer; Isolation; Paddy field; Purple nonsulfur bacteria; Rice straw broth. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582012000600007 |
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| Xu,Yilan; Tang,Haiming; Xiao,Xiaoping; Li,Weiyan; Li,Chao; Sun,Geng; Cheng,Kaikai. |
| ABSTRACT Soil microbial biomass plays a significant role in soils, and it is often used as an early indicator of change in soil quality. Soil microbial biomass is affected by different fertilization management practices. Therefore, the impact of different long-term fertilization management practices on the soil organic carbon (SOC) content, soil microbial biomass carbon (SMBC), and soil microbial biomass nitrogen (SMBN), as well as the soil microbial quotient (SMQ) in the tilled layer (0.00-0.20 m) were studied in the present paper, together with grain yield, in a double-cropping rice (Oryza sativa L.) system. The experiment in NingXiang county of Hunan Province, China, begin in 1986, and the experiment included five fertilization treatments: without... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Paddy field; Fertilizer regime; Double-cropping rice; Soil organic carbon; Grain yield. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100411 |
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| Chairat Channoo; Narisra Jumroonwong. |
| Survey in paddy field in 2013 amount 54 fields as follow : Mueang Chai Nat 13 fields, Manorom 6 fields, Watsing 5 fields, Sapphaya 7 fields, Sankaburi 9 fields, Hankha district 10 fields, Nakhonsawan 1 field, Uthithani 1 field, Singburi 1 field and Suphanburi province 1 field. We begin survey at 15 days after planting to 90 days and used outbreak data sets by week from Department of Agricultural Extension for decision. The survey results show that brown planthopper high in 2 times per year. The first time is in February to March in Mueang Chai Nat and Hankha district because of brown planthopper outbreak in Suphanburi, migrated to Hankha district and influence of southern wind. The second time is in July to August in Mueang Chai Nat, Hankha and Sankaburi... |
| Tipo: PhysicalObject |
Palavras-chave: Paddy field; Rice production; Brown plant hopper; Migration; Forecasting model; Nilaparvata lugens; Outbreak; Products damage; Pest monitoring; Chainat province; แบบจำลองทางคณิตศาสตร์; การเคลื่อนย้ายประชากร; เพลี้ยกระโดดสีน้ำตาล; นาข้าว; การปลูกข้าว; การระบาดของแมลงศัตรูพืช; การพยากรณ์เตือนภัยการระบาด; ความเสียหายของผลผลิต; การสำรวจข้อมูล; จ.ชัยนาท. |
| Ano: 2014 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5678 |
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