Agronomic characteristics of soybean cultivars with late-season nitrogen application in supplementation to the inoculation of Bradyrhizobium spp.

Author:

Zuffo Alan Mario1ORCID,Ratke Rafael Felippe2ORCID,Steiner Fábio3ORCID,Aguilera Jorge González2ORCID

Affiliation:

1. Universidade Estadual do Maranhão/UEMA, Brazil

2. Universidade Federal de Mato Grosso do Sul/UFMS, Brazil

3. Universidade Estadual de Mato Grosso do Sul/UEMS, Brazil

Abstract

ABSTRACT Late season nitrogen (N) applications may serve as cultural practices to increase soybean yield and grain protein concentration in modern high-yielding cultivars. A study to evaluate the response of soybean cultivars to late N application in supplementation to Bradyrhizobium spp. inoculation was conducted in two Brazilian Cerrado agricultural soils with medium and high fertility during the 2019/2020 growing season. Treatments were arranged in a randomized block design in a 2×2×5 factorial scheme: two agricultural production environments [UFMS 1 (medium fertility) and UFMS 2 (high fertility)], two soybean cultivars (TMG 7067 IPRO and BMX Bônus IPRO), and five late N application rates (0, 50, 100, 150 and 200 kg N ha-1), with four replicates. Canonical correlation analysis (CCA) was used to investigate the interrelationships between the groups of independent (agricultural production environments, soybean cultivars, and N application rates) and dependent (soybean agronomic traits) variables. Nitrogen rates were applied in topdressing at the R5.3 soybean growth stage. Late N applications did not affect soybean agronomic traits (plant height, first pod height, pod number per plant, grain number per pod, and 1,000-grain mass) and did not increase the grain protein concentration or yield of the soybean cultivars, regardless of the fertility level of the agricultural area. We conclude that when efficient strains of Bradyrhizobium spp. are used in soybean cropping in medium- and high-fertility Cerrado soils, there is no need to apply late rates of N fertilizer.

Publisher

FapUNIFESP (SciELO)

Subject

Soil Science,General Veterinary,Agronomy and Crop Science,Animal Science and Zoology,Food Science

Reference27 articles.

1. Adubação nitrogenada em soja na implantação do sistema plantio direto;ARATANI R. G.;Bioscience Journal,2008

2. Assessing variation in US soybean seed composition (protein and oil);ASSEFA Y.;Frontiers in Plant Science,2019

3. Genetic parameters of soybean populations obtained from crosses between grain and food genotypes;AZEVEDO C. V. G.;Acta Scientiarum. Agronomy,2020

4. Impact of soil acidity and liming on soybean (Glycine max) nodulation and nitrogen fixation in Kenyan soils;BAKARI R.;Acta Agriculturae Scandinavica, Section B - Soil & Plant Science,2020

5. The molecular-physiological functions of mineral macronutrients and their consequences for deficiency symptoms in plants;BANG T. C.;New Phytologist,2021

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3