乳酸菌复合制剂对燕麦群体结构建成及根系生长的影响

doi:10.12190/j.issn.2096-1197.2023.02.04

Abstract

Abstract: 【Objective】Explore the regulation effect of lactobacillus compound preparation on population structure and root growth of oat.【Methods】Using oat variety Bayou No.1 as the experimental material,four treatments,no lactobacillus compound preparation and chemical fertilizer application（CK）,chemical fertilizer application only（A）,lactobacillus compound preparation and chemical fertilizer combined application（AB）,and lactobacillus compound preparation application only（B） were set up. The effects of lactobacillus compound preparation on oat population structure formation,root growth,and yield were studied.【Results】The application of lactobacillus compound preparation only promoted the growth of oat as well as the population structure formation. The mature spike number was significantly increased by 6.15%-9.29% compared with CK（P<0.05）. The oat root morphological index was improved to certain extent,but the difference was not significant compared with CK（P>0.05）. The yield of oat was improved and the grain number per spike was significantly increased by 18.25%-23.14% compared with CK（P<0.05）. Oat population structure formation and root growth was best under the combined application of lactobacillus compound preparation and chemical fertilizer,with tiller number and mature spike number significantly increased by 16.88%-23.90% and 22.13%-27.30% compared with CK（P<0.05）,and mature spike number significantly increased by 8.76%-9.16% compared with A（P<0.05）. The oat root morphological index parameters were improved effectively with the average root surface area and the root biomass increased significantly by 49.17%-52.01% and 37.02%-44.31% compared with CK（P<0.05）. The combined application promoted the increase of oat yield and its components,with the grain yield and biological yield significantly increased by 33.20%-33.23% and 54.66%-60.39% respectively compared with CK（P<0.05）,and the biological yield significantly increased by 19.73%-20.41% compared with A（P<0.05）.【Conclusion】The application of lactobacillus compound preparation promoted the oat population structure formation,improved yield and the root morphological index,with the combined application of lactobacillus compound preparation and chemical fertilizer been better.

Key words: Lactobacillus compound preparation, Oat, Population formation, Root

CLC Number:

S512.6

SUN Yueying, LIU Jinghui, MI Junzhen, ZHAO Baoping, LI Yinghao. The effect of lactobacillus compound preparation on the formation of oat population structure and root growth[J].Journal of Northern Agriculture, 2023, 51(2): 33-40.

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URL: https://journal30.magtechjournal.com/bfnyxb/EN/10.12190/j.issn.2096-1197.2023.02.04

https://journal30.magtechjournal.com/bfnyxb/EN/Y2023/V51/I2/33

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The effect of lactobacillus compound preparation on the formation of oat population structure and root growth

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