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| Registros recuperados: 479 | |
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| Sukanya Arunmit; Wantana Sriratanasak; Jintana Chaiwong. |
| The brown planthopper (BPH), Nilaparvata lugens (Stål), is one of the most serious insect pest of irrigated rice in the central and lower areas of Northern Thailand. In upper North of Thailand, the first and serious outbreak was found during year 2011 and 2012. The misused insecticide over a period of time with extensive and intensive application is causing BPH outbreak. Therefore, the goal of this research was to monitor the insecticide resistance of BPH in the Northern, Thailand. BPH were collected from 12 outbreak fields of the Northern region namely: Chiang Rai, Chiang Mai, Mae Hong Son, Nan, Phrae, Tak, Phetchabun, Kamphaeng Phet, Phitsanulok, Phichit, Nakhon Sawan and Uthai Thani between the periods of 2010 to 2012. The toxicological tests (LD50) of... |
| Tipo: Collection |
Palavras-chave: BPH; Brown planthopper; Insecticide resistance; Toxicology test; Outbreak area; Northern; Rice; ข้าว; เพลี้ยกระโดดสีน้ำตาล; ความต้านทานต่อสารเคมีป้องกันกำจัดแมลง; ค่าความเป็นพิษ; พื้นที่ระบาด; ภาคเหนือ. |
| Ano: 2013 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5531 |
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| Amornrat Intrman; Sommai Lertna; Andrew Nelson; Tri Deri Setiyono; Francesco Holecz; Pongmanee Thonbai; Preesan Rakwathin. |
| RIICE is an activity in RIICE project which to find ways of helping Asian countries are faced with a natural disaster. Especially floods and droughts caused by the cooperation of the three organizations, namely International Rice Research Institute (IRRI), SARMAP and Rice Department. By the year 2013 - 2015 in the area of responsibility of Suphanburi Rice Research Center and Nakhon Ratchasrima Rice Research Center. In the year 2013 in Nakhon Ratchasima, using satellite COSMO Skymed, type stripmap, resolution 3-meter, width of the image 40 x 40 kilometers. In Suphanburi, using satellite COSMO Skymed, type scansar resolution of 15 meters, the width of the image 100 x 100 kilometers. In each field survey was conducted, collectting geographic coordinates,... |
| Tipo: Collection |
Palavras-chave: Rice; Remote sensing; Yield prediction; Natural disaster; ข้าว; การสำรวจระยะไกล; การพยากรณ์ผลผลิต; ภัยธรรมชาติ. |
| Ano: 2015 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5909 |
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| Yeng Lee; Santimaitree Gonkhamdee; Bhalang Suriharn. |
| Weeds play an important role in decreasing yield in dry-direct seeded rice. However, using herbicide could effectively control weed and help increase rice yield. The objective of this research was to investigate the effect of herbicide application on weed control and rice yield in dry-direct seeded paddy field. The experiment was conducted at a farmer’s field, Khon Kaen province, from June to November of 2012 with the use of rice variety KDML 105. The nine treatments were 1) no weeding, 2) hand weeding, 3) oxadiazon, 4) oxadiargyl, 5) oxyfluorfen, 6) pendimethalin, 7) butachor/propanil, 8) clomazone and 9) bispyribac-sodium. The rates of herbicide application of treatments 3-9 were 120.0, 40.0, 28.2, 198.0, 175.0, 38.4 and 4.0 g ai/rai, respectively, The... |
| Tipo: PhysicalObject |
Palavras-chave: Rice; KDML 105 variety; Rainy season rice; Weed control; Herbicide; Phytotoxicity; Weed density; Yield components; ข้าว; พันธุ์ขาวดอกมะลิ 105; ข้าวนาปี; นาหว่านข้าวแห้ง; การกำจัดวัชพืช; สารกำจัดวัชพืช; ความเป็นพิษ; ความหนาแน่นของวัชพืช; องค์ประกอบผลผลิต; ผลผลิตข้าว. |
| Ano: 2013 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5798 |
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| Ronnachai Changsri; Namuco, Ofelia; Migo, Teodoro; Johnson, David. |
| The efficacy of bispyribac sodium, fenoxaprop-p-ethyl + ethoxysulfuron, and propanil+butachlor were evaluated in greenhouse and field experiments, Weed Science, Crop and Environmental Sciences Division, IRRI in February - April 2013. The field plots had high weed density that had 4-6 leaves when the herbicides were applied at 15 days after land preparation. In the greenhouse experiment we grew Echinocloa crus-galli, Ludwigia octovalvis, Cyperus iria, weedy rice (Oryza sativa f. spontanea Acc. 105798 (THA)), and rice cultivars KDML105 and IR64 in pots. At 7 days after rice and weed germination, we sprayed herbicides to the above-mentioned species using a research track sprayer. The results showed that bispyribac sodium and fenoxaprop-p-ethyl+ethoxysulfuron... |
| Tipo: PhysicalObject |
Palavras-chave: Rice; Weed; Herbicides; Greenhouse; Trails; Bispyribac sodium; Fenoxaprop-p-ethyl; Ethoxysulfuron; Propanil; Butachlor; Philippines; ข้าว; วัชพืช; สารป้องกันกำจัดวัชพืช; ความเป็นพิษ; การควบคุมวัชพืช; เรือนทดลอง. |
| Ano: 2014 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5626 |
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| Khemporn Petcharaporn; Nittaya Ruensuk. |
| Investigation was made of growth and yield rice in response to different environments of irrigated rice varieties in paddy field at Klong Luang Rice Research Center during 2012 to 2013. The objective of this research was to correlate the effect of climate change on growth and rice yield. Five non-photoperiod sensitive rice varieties (Suphanburi 1, Suphanburi 2, Pathumtani 1, RD 29 and RD 43) were varied planting date. The results showed that 1) Increasing of the mean temperature, rain, humidity, wind speedy and the cumulative of sunshine per day will tend increasing height and number tiller of rice during sowing date to tillering stage. 2) Low temperature and lese of the cumulative amount of sunshine per day effect to the ripening stage was shorter... |
| Tipo: PhysicalObject |
Palavras-chave: Rice; Climate change; Growth; Yield; Global warming; ข้าว; สภาพภูมิอากาศ; การเจริญเติบโต; ผลผลิต; พันธุ์. |
| Ano: 2014 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5623 |
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| Somporn Kamyot. |
| The research objectives were to investigate green manure species namely Crotalaria juncia on yield, yield components and nitrogen content of rice cv. Sangyodphatthalung was conducted in paddy soil condition of Phatthalung Soil Series. The experimental design was RCBD of which consisted of 7 treatments by using different seed rates (kg rai-1) as compared to chemical fertilizer i.e. 0, 5, 10, 15, 20, 25 and 8-10-0 kg N-P2O5-K2O rai-1. The results of yield showed that significantly different with different seed rates, the treatment of 15, 20, 25 kg rai-1 and CF gave similar highest average yield (386.8, 388.9, 385.7, 409.5 kg rai-1 respectively) and highest average number of no. of panicle hill-1, no. of spikelet panicle-1 and % of filled grain whereas the N... |
| Tipo: Collection |
Palavras-chave: Rice; Sangyodphatthalung rice; Green manure; Yield; Yield component; Nitrogen content; ข้าว; พันธุ์สังข์หยดพัทลุง; ปอเทือง; ปุ๋ยพืชสด; ผลผลิต; องค์ประกอบผลผลิต; ปริมาณไนโตรเจน. |
| Ano: 2012 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5373 |
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| Registros recuperados: 479 | |
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