CAJ | 학술논문

对烟草根系施用5种配方肥料，并分别检测烟草移栽前、后20，40，60，120 d的根际土壤微生物，比较研究了不同肥料对烟草根际微生物的影响．实验结果显示：随着有机肥比例的增加，烟草根际土壤中的真菌、细菌等数量均比不添加有机肥的处理（N0处理）呈增加趋势；其中，50％无机氮＋50％有机氮处理（N3处理）能显著增加烟草根际土壤中的微生物数量，真菌、细菌、霉菌数量分别达到2．46×105，2．96×108，2．95×104个/g ．在烟草种植中，施用50％无机氮＋50％有机氮的有机肥有利于提高烟草根际微生物的数量．
대연초근계시용5충배방비료，병분별검측연초이재전、후20，40，60，120 d적근제토양미생물，비교연구료불동비료대연초근제미생물적영향．실험결과현시：수착유궤비비례적증가，연초근제토양중적진균、세균등수량균비불첨가유궤비적처리（N0처리）정증가추세；기중，50％무궤담＋50％유궤담처리（N3처리）능현저증가연초근제토양중적미생물수량，진균、세균、매균수량분별체도2．46×105，2．96×108，2．95×104개/g ．재연초충식중，시용50％무궤담＋50％유궤담적유궤비유리우제고연초근제미생물적수량．
This experiment was treated with 5 kinds of different proportion of organic fertilizer in the tobacco plants ,and the microorganism of 20 d ,40 d ,60 d ,120 d rhizosphere soil were tested respectively before and after the transplanting in order to study the effect of different organic fertilizer on tobacco rhizo-sphere microorganisms .The experimental results showed that :with the increase of the proportion of organ-ic manure ,the amount of fungi ,bacteria and mould in tobacco rhizosphere were higher than the treatment without the addition of organic manure(N0 treatment);among them ,the treatment of 50% inorganic nitro-gen +50% organic nitrogen (N3 treatment )could significantly increase the number of microorganisms in the rhizosphere soil of tobacco ,and the quantities of fungi ,bacteria and mould were 2 .46 × 105 cfu/g ,2 .96 × 108 cfu/g ,2 .95 × 104 cfu/g respectively .The experimental results also revealed that the application of Organic fertilizer including 50% inorganic nitrogen and 50% organic nitrogen was conducive to improving the quantity of microorganisms in tobacco rhizosphere .