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Equations for calculating N-fertilizer rates for maize from soil analysis Thai Agricultural
Amnat Suwanarit; Piya Chalermlin; Jarong Rungchuang.
8 ill., 3 tables
Palavras-chave: Corn; Maize; Soil analysis; N fertilizers; ข้าวโพด; การวิเคราะห์ดิน; อัตราปุ๋ย; ปุ๋ยไนโตรเจน.
Ano: 1992 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4503
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การจัดเขตศักยภาพการผลิตข้าวจังหวัดสิงห์บุรี Thai Agricultural
Duangporn Vithoonjit; Kingkaw Kunket; Amornrat Intrman; ChaLermchart Luechaikham.
Paddy soil in Sing Buri province can be classified into 4 levels as high suitability (soil group 3, 4, 7 and 15), moderately suitability (soil group 21), low suitability (soil group 33) and unsuitability (soil group 38). Moreover, yield production potential of those paddy soils can also be divided into 4 levels as more than 850 kg/rai (R1), 701 - 850 kg/rai (R2), 551 - 700 kg/rai (R3) and less than or equal to 550 kg/rai (R4). Field survey of 547 farmers plantation in Sing Buri province during 2007 - 2009 found that at least five rice varieties, which are PTT1, SPR1, RD31, CNT1 and PSL2 were grown. The common varieties which were PTT1 (90.31%), SPR1 (6.22%) and RD31 (0.91%), respectively were planted by direct seeding method with 25-35 kg/rai seed rate,...
Tipo: PhysicalObject Palavras-chave: Rice production; Rice zoning; Rice potential; Soil analysis; Chemical fertilizer; Sing Buri province; การผลิตข้าว; เขตการผลิตข้าว; ศักยภาพการผลิตข้าว; การวิเคราะห์ดิน; การใส่ปุ๋ย; ผลผลิต; ต้นทุนการผลิต; ชุดดิน.
Ano: 2013 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5592
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การจัดเขตศักยภาพการผลิตข้าวจังหวัดสมุทรสาคร สมุทรปราการ และสมุทรสงคราม Thai Agricultural
Opas Worawas; Noppadol Prayoonsuk; Nopdara Fakprasert; Chitnucha Buddhaboon; Benjamas Rossopa; Kingkaw Kunket.
Rice production potential zoning in Samutsakhon, Samutprakhran and Samutsongkhram provinces was conducted in wet season 2010. Research methodology consisted of general rice production information collection, soil sampling and crop cutting from farmer field, field experiment, mapping of rice zoning. The study showed that the two crops of recommended rice varieties with transplanting were common practice in this area. Insect pest and diseases were controlled by chemical application. The compound fertilizer of 16-20-0 N-P2O5-K2O and 16-8-4 N-P2O5-K2O were applied depending on extractable potassium in the area. Field experiment indicated that rice yield of R3 level (550-700 kg/rai) could be increased to be R2 level (701-850 kg/rai) by using appropriate...
Tipo: PhysicalObject Palavras-chave: Rice potential zoning; Paddy soil; Rice; Fertilizer application technology; Landform; Fertilizer; Cost; Samutsakhon province; Samutprakan province; Samutsongkhram province; เขตศักยภาพการผลิตข้าว; ดินนา; ข้าว; เทคโนโลยีการใช้ปุ๋ย; ข้าว; ลักษณะดิน; การใส่ปุ๋ย; การจัดการปุ๋ย; การวิเคราะห์ดิน; ต้นทุนการผลิต; การลดต้นทุน; การดูแลรักษา; ศักยภาพการผลิต; จ.สมุทรสาคร; จ.สมุทรปราการ; จ.สมุทรสงคราม.
Ano: 2013 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5691
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การทดสอบพันธุ์ข้าวโพดลูกผสมในไร่เกษตรกร Thai Agricultural
Kittipob Vayuparp; Nita Wongsa.
Fourteen commercial corn hybrids were tested the yield potential in farmer field at Lansak city, Uthaitani province during rainy season on 2009. The objective was to compare the yield of corn hybrids when input high plant nutrition, level 14-7-13 of N-P-K Kilogram per rai. The result revealed that variety NK 48 gave high yield (1,248 Kilograms per rai) and the second PAC 339 (1,216 Kilograms per rai) whereas the public varieties NSW 3 and KU 4452 were 1,023 and 1,117 Kilograms per rai respectively.
Palavras-chave: Field corn hybrids; Testing; Farmer field; ข้าวโพด; ลูกผสม; พันธุ์; การทดสอบพันธุ์; ไร่เกษตรกร; การจัดการธาตุอาหาร; ปุ๋ยเอ็นพีเค; การวิเคราะห์ดิน; ผลผลิต; คุณภาพ.
Ano: 2010 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4668
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การทดสอบเทคโนโลยีเพื่อเพิ่มศักยภาพการผลิตข้าวจังหวัดตาก Thai Agricultural
Kawaporn Phumchaei; Kingkaew Kunket.
Rice production technology field trial had been conducted in Tak province as a part of rice production potential zoning in the lower northern part. The objective is to increase rice production of farmers in this province. Rice varieties were planted with 156.25 kg/ha seed rate of direct seeding and chemical fertilizer were applied as recommended rate compared with soil analysis rate at appropiate times. The results found that soil analysis application can increase rice yield around 9 - 34 and 6 - 19% in both high and moderate suitable soil in 2011 and 2012, respectively depending on the rice variety, rice growing season and the farmers practices. Moreover, there are also some factors that contribute to yield loss such as climate and rainfall fluctuation....
Tipo: PhysicalObject Palavras-chave: Potential for rice production; Chemical fertilizers application; Soil analysis; Tak province; ข้าว; ศักยภาพการผลิตข้าว; การใช้ปุ๋ยเคมี; การวิเคราะห์ดิน; การเขตกรรม; เทคโนโลยีที่เหมาะสม; จ.ตาก.
Ano: 2013 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5536
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การสำรวจและจำแนกพื้นที่ปลูกข้าวไร่และข้าวนาที่สูง เพื่อบ่งชี้สภาวะวิกฤติจากสภาพดินกรด Thai Agricultural
Sivapong Naruebal.
Survey and classification of highland rice cultivation areas to indicate acid soil crisis was conducted on altitude 700 meters above sea level. Soil sampling was conducted form 7 districts of Mae Hong Son province are namely Muang, Khun Yuam, Mae La Noi, Mae Sariang, Sop Muey, Pai and Pang Ma Pha in the year 2012-2013. A total of 115 soil samples were consisting of 68 paddies and 47 upland conditions. Soil samples were analysis to find out the soil pH. The result showed that the strongly acid, moderately acid and slightly acid are 39.13, 21.74 and 20.86 percentages, respectively. In other hand, the natural, very strongly acid and extremely acid are 8.7, 7.83 and 1.7 percentages, respectively. However 39 percent of upland soil sample and 38 percent of paddy...
Tipo: PhysicalObject Palavras-chave: Soil survey; Soil classification; Upland rice; Highland paddy; Acid soil; Soil analysis; PH; Mae Hong Son province; การสำรวจดิน; การจำแนกดิน; ข้าวไร่; ข้าวนาที่สูง; ดินกรด; การวิเคราะห์ดิน; พื้นที่สูง; การผลิตข้าว; ความเป็นกรดด่างของดิน; ปฏิกิริยาของดิน; ผลผลิต; จ.แม่ฮ่องสอน.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5711
Registros recuperados: 6
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