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Effects of sowing depths on growth and rooting patterns of cowpea and mungbean in a deep sand with shallow water table Thai Agricultural
Budsaba Buakum; Viriya Limpinuntana; Nimitr Vorasoot; Krirk Pannangpetch; Bell, Richard William.
In some dry-season cropping areas of northeast Thailand, farmers can grow selected annual legumes without irrigation by deep seeding. This cropping system seems to depend on capillary water rising from a shallow water table and seems to be suitable for peanut and cowpea but not other legumes. Seedlings planted by deep seeding might produce more roots under the seed position and could facilitate plants to absorb more water in deep soil because their roots were closer to water table. The present experiment was set up to investigate the differences of growth and rooting patterns between cowpea and mungbean planted at different sowing depths in a sandy soil with a shallow water table. Cowpea and mungbean seeds were sown in soil columns either shallow (~5 cm)...
Tipo: Collection Palavras-chave: Seeding depth; Root system; Legume; Receding soil moisture; Seeding depth; ถั่วพุ่ม; ถั่วเขียว; ระดับความลึก; ระบบการปลูกพืช; รูปแบบรากพืช; ความชื้นในดิน; ดินทราย; การเจริญเติบโต.
Ano: 2011 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5276
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ผลกระทบของการเปลี่ยนแปลงสภาพภูมิอากาศต่อการผลิตอ้อยในภาคตะวันออกเฉียงเหนือของประเทศไทย: พื้นที่ศึกษา จังหวัดกาฬสินธุ์ Thai Agricultural
Preecha Kapetch; Krirk Pannangpetch.
Climate change can directly affect crop production due to the increases of CO2 and temperature, and indirectly via weather variability especially rainfall. Sugarcane is important crop for Thailand, and large proportion are planted in Northeast of Thailand. Therefore this investigation is conducted to evaluate the impacts of climate change on yield of sugarcane in this region from 2010 to 2049, using ECHAM weather data downscale to 20x20 km by PRECIS as input to CANEGRO crop model in DSSAT program. Results showed that climate change has small effect on long term changes in sugarcane production. However average yield is highly variable, both spatially and temporally. Spatial variability is largely due to both soil and weather while temporal variability is...
Tipo: Collection Palavras-chave: Sugarcane; Climate change; Yield variability; อ้อย; ความแปรปรวนของผลผลิตอ้อย; การเปลี่ยนแปลงของอากาศ; การผลิตอ้อย; ผลผลิต; ภาคตะวันออกเฉียงเหนือ; จ.กาฬสินธุ์.
Ano: 2012 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5323
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