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ที่มา:51th of Kasetsart University Annual Conferenceหัวเรื่อง:การผลิตปุ๋ยชีวภาพโดยใช้หัวเชื้อ Azotobacter vinelandii TISTR 1094 ร่วมกับกากน้าตาลในระดับต้นแบบ |
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Efficiency of Glomus aggregatum, Azotobacter, Azospirillum and Chemical Fertilizer on Growth and Yield of Single Cross Hybrid 4452 Maize) ผู้เขียน: ดร.ธงชัย มาลา, รองศาสตราจารย์ ,  Sukhum Chotchuangmaneerat, Wantanee Phuengsaeng, Jirawat Phumphet สื่อสิ่งพิมพ์:pdf AbstractThe efficiency of arbuscular-mycorrhizal fungi (Glomus aggregatum), azotobacter (Azotobacter chroococcum), azospirillum (Azospirillum lipoferum) and chemical fertilizer on the growth and yield of single cross hybrid 4452 maize was evaluated at the laboratory of the Soil Science Department, Faculty of Agriculture, Kasetsart University at Kamphaeng Saen campus and in a field experiment at the National Corn and Sorghum Research Center in Nakhon Ratchasima province. Pellets of arbuscular-mycorrhizal inoculum containing 30-50 spore/g and inoculum of azotobacter and azospirillum in granular form were produced using fine compost as a carrier having 107-108 cfu/g in the population. The results revealed that corn growth in terms of plant height was greater for the microbially inoculated and fertilizer treatments than the control. The quantity of mycorrhizal spores in the mycorrhizal treatment was higher than in the other treatments. The rhizosphere of the soil used was suitable for azotobacter, with more than 106 cfu/ g found. The nitrogen, phosphorus and potassium contents of microbial-inoculated plants that had been subjected to chemical fertilizer treatment were greater than in the control. The difference among treatments of the residual soil nitrogen after harvest was not significant. The grain yield from the greenhouse experiment produced interesting results. The minimum yield found in the control treatment was 49.80 g/plant, while those of the microbial-inoculated treatments were higher. The yield of the azotobacter+azospirillum, azotobacter+arbuscular-mycorrhizalfungi+ chemical-fertilizer and the azotobacter+chemical-fertilizer showed the greater yields, with 216.72, 211.32 and 198.42 g/plant, respectively, compared with 174.72 g/plant from the maize treated with chemical fertilizer. The grain yield from field experiment using azotobacter+chemical-fertilizer was the greatest (706.25 kg/ha). The sole application of arbuscular-mycorrhhizal inoculation gave a grain yield as high as that of the chemical fertilizer treatment (5,993.75.0 and 5,825.00 kg/ha, respectively). The yield of azotobacter+azospirillum+arbuscular-mychorrhizal-fungi+chemical fertilizer was 5,987.50 kg/ ha and the lowest yield was found in the control (3,543.25.0 kg/ha). |
ที่มา:วิทยาสารกำแพงแสน (Kamphaengsaen Academic Journal) สาขาวิศวกรรมศาสตร์หัวเรื่อง:ประสิทธิภาพของปุ๋ยอินทรีย์เม็ดและอะโซโตแบคเตอร์ ในการส่งเสริมการเจริญเติบโตและการให้ผลผลิตของผักกาดหอมห่อ |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Interrelationship between Azotobacter and Clostridium in Increasing The Yield of Paddy and Nitrogen Uptake ) ผู้เขียน:Neerun Singhabootra1, W.V.B. Sundara Rao2 สื่อสิ่งพิมพ์:pdf Abstract The conversion of nitrogen in the form of gas into nitrogen compound by biochemical processes is rather small, but the processes continue throughout the year, if the climate and other factors such as nutrients, temperature, moisture, pH, aeration, number and strains of micro-organisms are suitable. Bhat and Palacios reported in 1949 that nitrogen fixation in the soil was favoured by moisture and absence of direct sunlight. Gupta (1956) manured alkaline clay and acid sandy soils and found that manured soil showed greater nitrogen fixation than the unmanured soils. In 1958 Sharma and Bhattacharya noted that in alkaline soil, the presence of calcium phosphate alone or with glucose or starch promoted the oxidation of organic matter and increased nitrogen fixation. Vojinovic (1956) reported that most important factors, were nature or organic matter and the phosphate lever. De and Mandal (1956) observed the application of molybdenum with phosphorus caused greater nitrogen fixation than phosphorus alone. |
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ที่มา:สำนักงานคณะกรรมการวิจัยแห่งชาติหัวเรื่อง:การพัฒนาผลิตปุ๋ยชีวภาพ Azotobacter vinelandii ร่วมกับกากหม้อกรองเพื่อเพิ่มประสิทธิภาพการตรึงไนโตรเจนสำหรับอ้อย หัวหน้าโครงการ:ดร.วิรัตน์ วาณิชย์ศรีรัตนา, รองศาสตราจารย์ |
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