สืบค้นงานวิจัย
Practices sustaining soil organic matter and rice yield in a tropical monsoon region
Arunrat N. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Practices sustaining soil organic matter and rice yield in a tropical monsoon region
ผู้แต่ง / หัวหน้าโครงการ (EN): Arunrat N.
บทคัดย่อ (EN): Sandy soils are usually dominant in tropical monsoon regions, due to the high weathering potential associated with high temperatures and precipitation. The organic matter content of sandy soils is low due to low clay content and high microbial activity. Therefore, soil management practices that alter the soil organic carbon (SOC) content may be important for the sustainable management of crop yields. Thus, the present study investigates the distribution of rice yield and SOC content under different land management practices and analyzes the relationship between rice yield and SOC with pertinent management practices (manure and fertilizer applications). The soil horizons from 0- to 40-cm depths were collected in each layer to measure SOC and soil properties at 64 sites. At each sampling site, farmers were given questionnaires and the record book for the standards for good agricultural practices of farm owners were gathered to assimilate information on rice yield and their practices during 2010–2014. The mean rice yield of the whole crop year and SOC were 2.93 Mg ha−1 and 47.09 Mg C ha−1, respectively, in the irrigated areas, and were 2.38 Mg ha−1 and 32.08 Mg C ha−1 in the rain-fed areas. Significantly higher values were obtained in the irrigated areas (p < 0.05). There was a significant positive correlation between rice yield and SOC in both the irrigated areas (R2 = 0.72, p < 0.01) and the rain-fed areas (R2 = 0.85, p < 0.01); however, the slopes of these regression equations were significantly different. In both irrigated and rain-fed areas, manure should be applied every year, with an optimal application rate of N, P, and K fertilizers being selected. The combination of manure, fertilizer, and increasing irrigation facilities the maintenance of SOC levels and substantially increases rice yields. © 2017 Japanese Society of Soil Science and Plant Nutrition.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-85020304777&doi=10.1080%2f00380768.2017.1323546&partnerID=40&md5=a35fcba1e47df56132827979f4b94fef
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): soil organic carbon
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
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Practices sustaining soil organic matter and rice yield in a tropical monsoon region
Arunrat N.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
Estimating soil organic carbon sequestration in rice paddies as influenced by climate change under scenario A2 and B2 of an i-EPIC model of Thailand Predicting local-scale impact of climate change on rice yield and soil organic carbon sequestration: A case study in Roi Et Province, Northeast Thailand Effect of water and rice straw management practices on yield and water productivity of irrigated lowland rice in the Central Plain of Thailand Effects of different quality organic residues applied yearly for the long term on dissolved organic matter dynamics in a sandy soil Influence of amendments on Cd and Zn uptake and accumulation in rice (Oryza sativa L.) in contaminated soil Immobilization of Cadmium in Contaminated Soil Using Organic Amendments and Its Effects on Rice Growth Performance Dynamics of soil organic matter and humic acid contents as influenced by land use changes The impacts of tillage, soil conditioners, and chemical fertilizer on yield of cassava in Yasothon Soil Series (Typic Paleustult), relationship between nutrient concentration and cassava yield compone Effects of Organic Manures and Inoculation on Grwoth an d Yield of Off Season soybean Cultivars Grown on an Acid Soil Role of socio-cultural and economic factors in cyprinid fish distribution networks and consumption in Lawa Lake region, Northeast Thailand: Novel perspectives on Opisthorchis viverrini transmission dy
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