สืบค้นงานวิจัย
Responses of 3 Lao Rice Varieties to Nitrogen Fertilizer
Khamsavang Sombounkkhanh - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Responses of 3 Lao Rice Varieties to Nitrogen Fertilizer
ผู้แต่ง / หัวหน้าโครงการ (EN): Khamsavang Sombounkkhanh
บทคัดย่อ (EN): Indigenous Lao rice varieties have unique characteristics and qualities, but their yields are low. Needs toconserve our environment and to keep the cost of production low would oblige any scheme of yield improvementin the future to rely on increasing the efficiency of N use. The experiment was therefore conducted to investigatethe responses to N fertilizer and N use efficiency (εN) of 3 popular Lao rice varieties, TDK 4, Makhing, and Eloup.The result showed that Makhing had the highest mean grain yield of 8,256 kg ha-1 and εN of 35.87 kg grain kg-1available N. Eloup and TDK 4 achieved the mean grain yields of 7,338 kg ha-1 and 7,316 kg ha-1, respectively. Eventhough Eloup had the highest physiological N use coefficiency (PNUE) of 184.03 kg biomass (BM) kg-1 absorbedN, its harvest index (HI) was the lowest (0.30). TDK 4 had the highest N uptake, comparable HI (0.33), but lowestPNUE (149.48 kg BM kg-1 absorbed N). Makhing had the highest HI (0.35) and comparable N uptake and PNUEthat complement to give it the highest yield and εN. In general, yields increased with increasing N up to the rateof 60 kg N ha-1, over which there was no significantly increase. At this N rate, εN was higher than those at theN rate of 90 and 120 kg N ha-1. Although the εN and HI at N rate of 0 and 30 kg N ha-1 were higher than that at60 kg N ha-1, but shoot dry weight were considerable lower and consequently led to lower yield.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): th
จำนวนหน้า: 9
เอกสารแนบ: https://li01.tci-thaijo.org/index.php/agkasetkaj/article/view/249975/170860
คำสำคัญ (EN): yield
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง

Khamsavang Sombounkkhanh. "Responses of 3 Lao Rice Varieties to Nitrogen Fertilizer". ไม่ระบุหน่วยงาน. 2549

Khamsavang Sombounkkhanh. "Responses of 3 Lao Rice Varieties to Nitrogen Fertilizer". ไม่ระบุหน่วยงาน. 2549. Print.



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Responses of 3 Lao Rice Varieties to Nitrogen Fertilizer
Khamsavang Sombounkkhanh
ไม่ระบุผู้เผยแพร่
2549
Study on adaptation of 22 traditional glutinous rice varieties in the Lao PDR Participatory variety selection (PVS) to assess farmer preferences of traditional glutinous rice varieties in the Lao PDR Clustering analysis of salinity responses in indigenous rice by sorting algorithm Soil Nitrate as a Source of Nitrogen for Rainfed and Deep-Flooded Rice Milk Fertilizer Responses of rainfed lowland rice genotypes to terminal drought in Northeast Thailand Physicochemical and antioxidative properties of black, brown and red rice varieties of northern Thailand Sulfate fertilizer influencing methane emissions in paddy field and rice (cv. Chainat1) production Evaluation of erosion productivity impact calculator (EPIC) model for nitrogen losses in rice paddy of Thailand VERMICOMPOST, an organic fertilizer
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