Effect of different methods of inoculation and co-inoculation of Bradyrhizobium spp. and Azospirillum brasilense on soybean agronomic performance in fields with a history of inoculation

IF 2.3 4区农林科学 Q1 AGRONOMY

Archives of Agronomy and Soil Science Pub Date : 2023-02-27 DOI:10.1080/03650340.2023.2184807

Fernando Marcos Brignoli, Eder Junior de Oliveira Zampar, João Henrique Vieira de Almeida, Bruno Maia Abdo Rahmen Cassim, T. T. Inoue, M. A. Batista

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引用次数: 2

Abstract

ABSTRACT The yield gain of soybean inoculated with Bradyrhizobium spp. or co-inoculated with Bradyrhizobium spp. and Azospirillum brasilense is variable. Inoculants can be applied in the sowing furrow or via seed treatment. There is a gap in our understanding of the efficacy of different inoculation methods. This study aimed to assess the agronomic efficiency of soybean inoculated and co-inoculated with Bradyrhizobium spp. and A. brasilense by different methods. The study was conducted in Paraná State, Brazil, in two seasons. Five treatments were tested: control; seed treatment with Bradyrhizobium spp. (SBr), seed treatment with Bradyrhizobium spp. + A. brasilense (SBr+Az), in-furrow treatment with Bradyrhizobium spp. (FBr), and in-furrow treatment with Bradyrhizobium spp. + A. brasilense (FBr+Az). Shoot dry weight, grain nitrogen content and grain yield were lower in 2018/19. In 2017/18, FBr+Az increased nodule number and dry weight compared with SBr. FBr+Az promoted a 47% increase in pods per plant compared with the control in both seasons. Regardless of season, grain nitrogen content was higher with FBr+Az (mean relative increase of 27%). FBr+Az was superior to SBr+Az in 2017/18, with a 12% increase in yield. Inoculation and co-inoculation improve morphological traits and soybean yield. In-furrow inoculation is more efficient than seed treatment.

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不同接种方法和共接种慢生根瘤菌和巴西固氮螺菌对有接种史大豆农艺性状的影响

接种慢生根瘤菌或与巴西固氮螺菌联合接种大豆的产量增加是可变的。接种剂可以在播种沟中施用，也可以通过种子处理施用。我们对不同接种方法的疗效的理解存在差距。本研究旨在评估不同方法接种和共接种慢生根瘤菌和巴西黄曲霉的大豆的农艺效率。这项研究分两个季节在巴西巴拉那州进行。测试了五种处理：对照；用慢生根瘤菌（SBr）进行种子处理。 + A.brasilense（SBr+Az），用慢生根瘤菌（FBr）进行沟道处理，和用慢生分枝杆菌（Bradyrhizobium spp。 + A.brasilense（FBr+Az）。2018/19年，茎干重、籽粒含氮量和籽粒产量均较低。2017/18年，与SBr相比，FBr+Az增加了结节数量和干重。在两个季节中，FBr+Az促进了单株荚数比对照增加47%。无论季节如何，FBr+Az处理的籽粒含氮量均较高（平均相对增加27%）。在2017/18年度，FBr+Az优于SBr+Az，产量增加了12%。接种和共接种提高了大豆的形态性状和产量。沟内接种比种子处理更有效。

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来源期刊

Archives of Agronomy and Soil Science AGRONOMY-SOIL SCIENCE

CiteScore

5.50

自引率

4.20%

发文量

107

期刊介绍： rchives of Agronomy and Soil Science is a well-established journal that has been in publication for over fifty years. The Journal publishes papers over the entire range of agronomy and soil science. Manuscripts involved in developing and testing hypotheses to understand casual relationships in the following areas: plant nutrition fertilizers manure soil tillage soil biotechnology and ecophysiology amelioration irrigation and drainage plant production on arable and grass land agroclimatology landscape formation and environmental management in rural regions management of natural and created wetland ecosystems bio-geochemical processes soil-plant-microbe interactions and rhizosphere processes soil morphology, classification, monitoring, heterogeneity and scales reuse of waste waters and biosolids of agri-industrial origin in soil are especially encouraged. As well as original contributions, the Journal also publishes current reviews.