烤烟施用菜籽饼后根际微生物数量变化研究  

Studies on Microbe Quantity Changes Around Flue-cured Tobacco Roots after Rape Cake Application

作　　者：张晓海 杨春江 王绍坤 陈发荣 刘宝泉 张晓林[3] 和丽忠[3] 陈锦玉[3] 樊永言[3] 

机构地区：[1]云南省烟草科学研究院农业所,云南玉溪653100 [2]红塔集团通海县烟草公司,云南通海652700 [3]云南省农业科学院生物技术研究所,云南昆明650223

出　　处：《云南农业大学学报》2003年第1期14-19,共6页Journal of Yunnan Agricultural University

基　　金：云南省自然科学基金项目(983A06)

摘　　要：在云南省通海县进行了烤烟施用菜籽饼肥不同用量试验;不同生育期检测烤烟根际微生物数量变化,结果显示:施用菜籽饼均增加了烟田(烟地)土壤的细菌数量。田烟效果比地烟明显。而对土壤放线菌和霉菌影响较小。施用菜籽饼提高了烟田烟地烤烟生育中后期根际解磷细菌和解钾细菌的数量,土壤增强了烤烟生育中后期供肥能力;特别是供应磷钾的能力。过量施用增加了烤烟生育后期根际土壤硝化细菌数量。The experiments of different rape cake amounts were carried out in Tonghai, Yunnan province and the microbe quantity changes around fluecured tobacco roots were examined at different growth periods. The results indicated that the bacteria numbers in tobacco fields had been increased after rape cake application and the effects in paddy lands were better than those in dry lands. However, it had less effect on actinomyces and moulds of soil. The numbers of phosphobacteria and potassiumbacteria around tobacco roots were increased after rape cake application and the abilities of soil offering pertilizers (especially P and K) were enbanced during the middle and later growth period. The numbers of nitrobacteria around roots were increased during the later growth period by excessive application.

关 键 词：根限微生物 数量变化 烤烟 菜籽饼 土壤微生物 

分 类 号：S572[农业科学—烟草工业] S141.5[农业科学—作物学]