CAJ | 학술논문

针对一些烟区土壤存在的板结、酸化严重、营养失调、微生态环境失衡等问题,设置了窝施碳化玉米秸秆、增施碱性肥料、生石灰水和微肥斯德考普灌根4项措施对烟株根际土壤进行改良.通过调查各处理青枯病的发病情况、烟草农艺性状等指标,探索不同调控措施对青枯病的防控作用及烤烟农艺性状的影响.结果表明:4个处理中,生石灰水灌根和微肥斯德考普灌根对烟草青枯病均有较好的防控作用,在对照区发病率达到高峰时,病情指数分别比对照低9.74、8.45,防效分别为50.52%、40.47%;4种处理措施对烟草农艺性状均有一定的促进作用,以增施碱性肥料效果相对最佳,其后依次为斯德考普灌根、石灰水灌根、窝施碳化玉米秸秆.
침대일사연구토양존재적판결、산화엄중、영양실조、미생태배경실형등문제,설치료와시탄화옥미갈간、증시감성비료、생석회수화미비사덕고보관근4항조시대연주근제토양진행개량.통과조사각처리청고병적발병정황、연초농예성상등지표,탐색불동조공조시대청고병적방공작용급고연농예성상적영향.결과표명:4개처리중,생석회수관근화미비사덕고보관근대연초청고병균유교호적방공작용,재대조구발병솔체도고봉시,병정지수분별비대조저9.74、8.45,방효분별위50.52%、40.47%;4충처리조시대연초농예성상균유일정적촉진작용,이증시감성비료효과상대최가,기후의차위사덕고보관근、석회수관근、와시탄화옥미갈간.
Organic tobacco leaf production is confronted with major issue of accumulation of bacterial wilt in soil continuously cropped with tobacco. Problems such as soil compaction, acidification, unbalanced nutrients also exist, especially in southern tobacco growing areas. In order to improve tobacco growing soil, measures were taken such as socket application with carbonization corn straw, increased application of alkalinity fertilizer, root irrigation with quicklime water and micro-fertilizer tradecorp were applied. Agronomical characters and occurrence of tobacco bacterial wilt were analyzed. Results showed that both root irrigation and micro-fertilizer tradecorp were good to prevent and control tobacco bacterial wilt with control efficacy of 50.52%and 40.47%, respectively. All four measures showed positive effects on tobacco agronomic character, with socket application of alkalinity fertilizer the best and root irrigation with micro-fertilizer tradecorp, root irrigation with quicklime water and socket application with carbonization corn straw also effective.