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以促植物生长根际细菌A21-4、G15-7和G28-6为试材,配制成不同配比单剂微生物肥(AF、BF、CF)和混合微生物肥(ABF、ACF、BCF、ABCF)施用于辣椒,探讨微生物肥对辣椒生长的影响及辣椒疫病的防治效果。结果表明:供试微生物肥均显著促进辣椒的生长,微生物肥(BF)对辣椒苗期株高和茎粗的促生效果显著,比对照CK2分别提高11.17%和26.54%;微生物肥(AF、BF、ABF)处理显著增加辣椒根部干鲜重;微生物肥显著提高叶绿素含量,其中AF、CF处理对叶绿素含量的提高最为显著,比CK2分别提高158.42%和155.12%;微生物肥(AF、ABF、ACF、BCF)处理显著增强根系活力,比CK2分别提高217.86%、235.71%、235.71%、239.29%。另外,供试微生物在辣椒根际土壤中具有良好的定殖能力,其定殖密度均达到106 cfu/g以上,对辣椒疫病均有一定防治效果,其中BF、CF处理对辣椒疫病的防治效果达到100%。
In order to promote the growth of plant rhizobacteria, A21-4, G15-7 and G28-6 were used as materials to prepare single-dose microbial fertilizer (AF, BF, CF) and mixed microbial fertilizer (ABF, ACF, BCF, ABCF ) Was applied to pepper, to explore the impact of microbial fertilizer on the growth of pepper and peppers disease prevention and control. The results showed that all the microbial fertilizers significantly promoted the growth of pepper. Microbial fertilizer (BF) had a significant effect on the plant height and stem diameter of pepper seedlings, which was 11.17% and 26.54% higher than CK2 respectively. Microbial fertilizer (AF, BF and ABF) significantly increased the dry and fresh weight of pepper roots; microbial fertilizer significantly increased the content of chlorophyll, and the most significant increase of chlorophyll content was found by AF and CF treatments, which were 158.42% and 155.12% ACF and BCF) significantly increased root activity, which were 217.86%, 235.71%, 235.71% and 239.29% higher than that of CK2 respectively. In addition, the test microorganisms had good colonization ability in pepper rhizosphere soils, and their colonization density reached above 106 cfu / g, which had certain control effects on pepper blight. Among them, the control effect of BF and CF on pepper blight Reached 100%.