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การประชุมวิชาการผลของการบำรุงดินด้วยปุ๋ยอินทรีย์ต่อลักษณะทางกายภาพและสารต้านอนุมูลอิสระในข้าวไร่ (2017)ผู้แต่ง: เสาวภา สิทธิโชคธรรม,  Dr.TAWEESAK TECHAKRIENGKRAI, Assistant Professor , รศ.ดร.พรรณธิภา ณ เชียงใหม่, รศ.ดร.ปราโมทย์ แพงคำ , รศ.มานะ กาญจนมณีเสถียร, ดร.เสาวภา เขียนงาม, อ.ฌานิกา จันทสระ, อ.ยุภา ปู่แตงอ่อน, Mrs.Amporn Jamphon, Assistant Professor , Dr.Porntip Pasukamonset, Assistant Professor , Dr.Kansuda Wunjuntuk, Assistant Professor , การประชุมวิชาการ: |
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ผลงานตีพิมพ์ในวารสารวิชาการSimultaneous production of L-lactic acid with high optical activity and a soil amendment with food waste that demonstrates plant growth promoting activityผู้แต่ง:Dr.Vichien Kitpreechavanich, Associate Professor , Hayami, A, Ms.Anfal Talek, Chin, CFS, Tashiro, Y, Sakai, K, วารสาร:  
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effect of Soil Amendment with Urea and Calcium Oxide on Survival of Ralstonia solanacearum, the Causal Agent of Bacterial Wilt or Rhizome Rot of Ginger) ผู้เขียน:นางศศิธร วุฒิวณิชย์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe effect of soil amendment with urea and calcium oxide on survival of Ralstonia solanacearum, the causal agent of bacterial wilt or rhizome rot of ginger, was studied by mixing urea and calcium oxide at the rate of 80 : 800 kg/rai in the artificial infested soil with 2.83 ? 107 cfu/ml of bacteria. The treated soil was left one week before transplanting the two months old gingers. The soil was sampled during week 0 - 4 to evaluate the population of R. solanacearum and to compare with the control by serial dilution method and spread plate on SM-1 medium. The experiment showed that the population of R. solanacearum in the soil amendment with urea and calcium oxide decreased from 0.88 ? 107 cfu/ml to 0.15 ? 105 cfu/ml in week one, 0.1 ? 104 cfu/ml in week two and 0 cfu/ml in week three. The control treatment still contained high population level of 0.26 ? 107 cfu/ml in week one, 0.13 ? 106 cfu/ml in week two and three and 0.11? 106 cfu/ml in week four. This population level could cause typical wilt of the tested gingers. The tested gingers transplanted in the treated soil showed no symptom. The decrease of bacteria in the treated soil was due to the toxicity of ammonium, ammonia and nitrate degraded from urea in high pH soil condition (average 7.0-7.2). Therefore the soil amendment with urea and calcium oxide at the rate of 80 : 800 kg/rai is recommended to decrease population of R. solanacearum in the infested fields for bacterial wilt control. The treated soil should be left at least 3 weeks before planting a new crop to avoid toxicating to ginger seedlings. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effects of Soil Amendment on Growth and Heavy Metals Content in Vetiver Grown on Iron Ore Tailings) ผู้เขียน:ดร.นวลฉวี รุ่งธนเกียรติ, ศาสตราจารย์ , นายยงยุทธ โอสถสภา, รองศาสตราจารย์ , เจริญ ยินดีรัมย์ สื่อสิ่งพิมพ์:pdf AbstractA greenhouse experiment was conducted to evaluate the effects of soil amendment on growth, performance and the accumulation of primary nutrients as well as Fe, Zn, Mn and Cu in vetiver. Ratchaburi vetiver ecotype plantlets were planted on iron ore tailings amended with compost and chelating agents (EDTA and DTPA). The results indicated that iron ore tailings contained high concentrations of heavy metals with total Fe, Zn, Mn and Cu concentrations of 63,920, 190, 3,220 and 190 mg kg-1, respectively and low contents of primary nutrients and organic matter. The combination of soil amendment materials, especially DTPA and compost, was more effective than sole chelating agents and sole compost in enhancing vetiver growth, nutrient and heavy metals uptake. The soil amendments used in this study did not affect Fe and Zn translocation from vetiver roots to shoots. However, chelating agent amendment could increase Cu translocation, especially in combination with compost, while it slightly decreased Mn translocation. The average mean translocation factors of Mn, Fe, Zn and Cu were 0.86, 0.71, 0.69 and 0.55, respectively. These results indicated that vetiver is a potential plant for phytostabilization and rehabilitation of iron ore mine areas. |