 ผลงานตีพิมพ์ในวารสารวิชาการRisk factors associated with acute hepatopancreatic necrosis disease at shrimp farm level in Bac Lieu Province, Vietnamผู้แต่ง: Hien The Nguyen, Toan Nguyen Van, Tien Tien Ngoc,  Dr.Visanu Boonyawiwat, Associate Professor , Dr.Theera Rukkwamsuk, Associate Professor , Mr.Adisorn Yawongsa, Associate Professor , วารสาร:  
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Reduction of Chemical Application in Soybean at Farm Level : II Comparison between Wet and Dry Seasons Planting) ผู้เขียน:ดร.อภิพรรณ พุกภักดี, ศาสตราจารย์, นุกูล อ่อนนิ่ม สื่อสิ่งพิมพ์:pdf AbstractA comparison study was conducted for soybean production in the rainy season at Thongphaphoom district and in the dry season at Nongprue district of Kanchanaburi province in the year of 2001 to 2002. The objective of the study was to seek for the possibility of reducing chemical applications in soybean. Treatments were composed of the chemical and non-chemical control for weed, insect and soil fertility designed as non, less chemical and moderate chemical applications. The given treatments were compared with farmer practices in which various kinds of chemical at different amounts were used in soybean production. This study was an on-farm research conducted in the farmer field where the treatments were subjected to the actual conditions of pest, weed and soil heterogeneity. Soybean cultivar “Chakkrabhandhu no.1” was grown in the upland soil on 20 July 2001 in the rainy season trial while the same variety was planted in the paddy field after rice in the dry season on 20 December 2001. Results of the experiments revealed that the yield of soybean crop grown in the wet season was lower than those of the dry season. The main factor reducing yield in both trials were weed infestation. Weed growth in the rainy season was mainly broadleaves while in the dry season the main weed infestation was volunteer rice. In both trials, insect infestation were mild, therefore, the use of neem extract seemed enough for controlling insect pests in soybean fields. In both experiments, it was found that the application of triple super phosphate (TSP) at 62.5 kg/ ha increased the yield of soybean to the highest level among other treatments. While the biophoska organic fertilizer raised the yield to the second highest level in both trials. It can be concluded in this study that for growing soybean successfully in the rainy season, post emergence herbicides such as Formezafen plus Fluazifop-p-butyl and the application of triple super phosphate were needed. However, to grow soybean successfully in the dry season, the triple super phosphate or biophoska alone was sufficient for increasing yield of soybean grown after rice. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Reduction of Chemical Application in Soybean at Farm Level I. Comparison between Two Wet Seasons Soybean Production) ผู้เขียน:ดร.อภิพรรณ พุกภักดี, ศาสตราจารย์, นุกูล อ่อนนิ่ม สื่อสิ่งพิมพ์:pdf AbstractThe experiments were conducted in the farmer fields at Thongphaphoom district of Kanchanaburi province, Thailand in the year of 2000 and 2001. Soybean cultivar “Chakkrabhandhu no.1” were grown in the upland soil on 20 July 2000, and 20 July 2001 respectively. The harvesting dates for both experiments were in the first week of November. Treatments composed of the combinations of chemical and non-chemical control for weed, insect and soil fertility designed as no chemical, less chemical and moderate chemical application. The given treatments were compared with farmer practices in which various kinds of chemical at different amounts were used in soybean production. Results of two experiments conducted revealed that yield of soybean in the year 2000 was higher than in 2001 due to less weed infestation. Biophoska organic fertilizer in less chemical treatment and triple super phosphate (TSP) in moderate chemical treatment were the main cause of high yield. To grow soybean successfully in the rainy season, herbicides were still needed. In both years of 2000 and 2001, insect infestation were mild, therefore the use of neem extract from Azadirachta indica A. as insect repellant seemed enough for controlling insects in soybean fields. This study indicated that in order to grow soybean in the rainy season, herbicides are still needed to suppress weed. Growth and yield of soybean can be enhanced by using organic fertilizer or TSP. |
ที่มา:มหาวิทยาลัยเกษตรศาสตร์หัวเรื่อง:การเกษตรแบบแม่นยำสำหรับการผลิตอ้อยในชุดดินกำแพงแสนในระดับแปลงเกษตรกร |
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ที่มา:การประชุมทางวิชาการของมหาวิทยาลัยเกษตรศาสตร์ ครั้งที่ 48หัวเรื่อง:ปัจจัยที่มีอิทธิพลต่อการพัฒนาศักยภาพทางพันธุกรรมสำหรับการให้ผลผลิตน้ำนมของโคนมระดับฟาร์มในเขตภาคกลางของประเทศไทย |
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