臺東地區重要作物溶磷菌之開發研究

Abstract

微生物肥料於田間應用時，限制因素之一為土生微生物的競爭，因此篩選適合於當地土文氣候的土生微生物有其發展前景，本試驗於臺東地區各地採集果園根系土壤進行溶磷菌篩選工作，將篩選出的菌株進行溫室盆栽試驗及田間試驗，結果顯示，在溫室短期作物中，澆灌市售溶磷菌能有效提高大部分蔬菜鮮重及株高，本試驗所篩出之菌株 E69 有提升對蔬菜鮮重及乾種有提升但不顯著，在田間試驗的玉米穗重則有顯著提升，本 E69 菌株經 Biolog 鑑定為 Burkholderia dolosa 伯克氏菌屬。 When using microbial fertilizer in the field, one of the reasons for the remarkable efficacy is not easy to compete native microbes, so screening suitable soil microbes for the local climate and soil has its development prospects,We collected the soil around the roots and screening PSB (phosph orus solubilizing bacteria) in Taitung area orchards, and tests PSB ability in greenhouse and field. The result shows that commercially PSB can effectively improve some vegetables fresh weight and height, E69 strain have no significant in vegetable trials, but have significantly at improved corn ear weight in field trials, this E69 strain was identified as Burkholderia dolosa by Biolog.