4种种衣剂对大豆根际微生物消长的影响  

Dynamic changes of soybean rhizosphere microorganism after treatment with 4 seed coating

作　　者：张齐凤[1] 石明杰[2] 刘春来 黄珊珊[1] 韩雪[1] 张博[1] 文景芝[1] 

机构地区：[1]东北农业大学农学院,哈尔滨150030 [2]黑龙江畜牧兽医职业学院,黑龙江双城150111 [3]黑龙江省农科院植物保护研究所,哈尔滨150086

出　　处：《东北农业大学学报》2008年第3期1-4,共4页Journal of Northeast Agricultural University

基　　金：国家自然科学基金重点项目(30230250);黑龙江省博士后启动金(LHK-04008)

摘　　要：用分离培养技术法研究了金阿普隆、多克福、菌克毒克和适乐时4种种衣剂对大豆根际真菌、细菌、放线菌、固氮菌和根瘤数量的影响。结果表明,4种种衣剂对上述5类微生物的数量均有一定影响。使用4种种衣剂对大豆根际真菌先产生明显促进作用,后产生微弱抑制作用,最后恢复到正常水平;处理前期,对根际细菌以抑制为主,处理51 d时,4种种衣剂对根际细菌均产生促进作用,试验后期,处理组的根际细菌恢复到正常水平;4种种衣剂处理22 d时大豆根际放线菌增加988%～1 320%,处理29,36,43,51 d时均影响较小,后期逐渐恢复到正常水平;大豆根际固氮菌数量无明显变化规律;处理前期大豆根瘤数量减少,后期恢复到正常水平。This experiment studies the dynamic changes of soybean rhizosphere microorganism with dilution method after treatment with Metalaxyl, Carbofuran-Carbendazim-Thiram, Ninanmycin and Gelest. The result indicates that the 4 seed coating all affects soybean rhizosphere fungi, bacteria, actinomyce, nitrogen-fixing bacteria and nodules. They obviously stimulate the soybean rhizosphere fungi at first, then there is a faint inhibition, and the amount of soybean rhizosphere fungi restores to the normal level at last. At the prophase, the 4 seed coating mainly inhibits the rhizosphere bacteria. After 51 d, they all stimulate the rhizosphere bacteria, then the amount of soybean rhizosphere bacteria restores to the normal level. After 22 d treated with them, the amplitude of soybean rhizosphere actionmyce is 988%-1 320%, and after 29, 36, 43, 51 d, the effect is not obvious, then the amount of soybean rhizosphere actinomyce restores to the normal level. The change of soybean rhizosphere nitrogen-fixing bacteria is not regular. At the prophase the amount of soybean nodules decrease after treated, then it restores to the normal level at the later period.

关 键 词：种衣剂 大豆 根际微生物 消长规律 

分 类 号：S565.1[农业科学—作物学] S482.99