Foliar application of molybdenum combined with cobalt affects leaf nitrogen concentration, grain yield, and yield components of soybean

IF 2 3区农林科学 Q2 AGRONOMY

Agronomy Journal Pub Date : 2025-09-10 DOI:10.1002/agj2.70160

Jorge Delfim, Adônis Moreira, Larissa A. C. Moraes

{"title":"Foliar application of molybdenum combined with cobalt affects leaf nitrogen concentration, grain yield, and yield components of soybean","authors":"Jorge Delfim, Adônis Moreira, Larissa A. C. Moraes","doi":"10.1002/agj2.70160","DOIUrl":null,"url":null,"abstract":"<p>The high protein content in soybean (<i>Glycine max</i> (L.) Merrill) necessitates maximizing the nitrogen (N) absorption capacity and the biological N fixation process. This study aimed to evaluate whether foliar application of molybdenum (Mo) combined with cobalt (Co) enhances the productivity, yield components, N content, and protein and oil contents of soybeans. The experiment consisted of randomized blocks with a split-plot arrangement, with two soybean cultivars (BRS 399 Roundup Ready [RR] and BRS 284) as a main plot and the presence or absence of foliar application of Co + Mo as a subplot, during two seasons and eight replications. Foliar application was performed during the vegetative stages V3 and V5. The results revealed that foliar fertilization with Co + Mo increased the grain yield by 9.8% for BRS 399 RR in the first season and by 15.4% for BRS 284 in the second season. For BRS 399 RR, the N concentration in the leaves, protein yield, and oil content were also positively affected by the Co + Mo application. For BRS 284, only the N concentration in leaves increased in the first season, whereas the protein yield improved in the second season. However, compared with the control, the protein and N concentrations in the grains of both cultivars and seasons were not significantly influenced by Co + Mo application. The foliar application of Co + Mo had both positive and neutral effects on grain yield, protein yield, and leaf N concentration, depending on weather conditions and the soybean cultivar used, thus impacting N use efficiency.</p>","PeriodicalId":7522,"journal":{"name":"Agronomy Journal","volume":"117 5","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://acsess.onlinelibrary.wiley.com/doi/epdf/10.1002/agj2.70160","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Agronomy Journal","FirstCategoryId":"97","ListUrlMain":"https://acsess.onlinelibrary.wiley.com/doi/10.1002/agj2.70160","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AGRONOMY","Score":null,"Total":0}

引用次数: 0

Abstract

The high protein content in soybean (Glycine max (L.) Merrill) necessitates maximizing the nitrogen (N) absorption capacity and the biological N fixation process. This study aimed to evaluate whether foliar application of molybdenum (Mo) combined with cobalt (Co) enhances the productivity, yield components, N content, and protein and oil contents of soybeans. The experiment consisted of randomized blocks with a split-plot arrangement, with two soybean cultivars (BRS 399 Roundup Ready [RR] and BRS 284) as a main plot and the presence or absence of foliar application of Co + Mo as a subplot, during two seasons and eight replications. Foliar application was performed during the vegetative stages V3 and V5. The results revealed that foliar fertilization with Co + Mo increased the grain yield by 9.8% for BRS 399 RR in the first season and by 15.4% for BRS 284 in the second season. For BRS 399 RR, the N concentration in the leaves, protein yield, and oil content were also positively affected by the Co + Mo application. For BRS 284, only the N concentration in leaves increased in the first season, whereas the protein yield improved in the second season. However, compared with the control, the protein and N concentrations in the grains of both cultivars and seasons were not significantly influenced by Co + Mo application. The foliar application of Co + Mo had both positive and neutral effects on grain yield, protein yield, and leaf N concentration, depending on weather conditions and the soybean cultivar used, thus impacting N use efficiency.

Abstract Image

查看原文本刊更多论文

钼钴配施对大豆叶片氮素浓度、籽粒产量和产量构成均有影响

大豆中蛋白质含量高（甘氨酸max (L.)）美林)需要最大化氮(N)的吸收能力和生物固氮过程。本试验旨在评价叶面施用钼（Mo）与钴（Co）是否能提高大豆的生产力、产量成分、氮含量以及蛋白质和油脂含量。试验采用分畦式随机分组，以2个大豆品种BRS 399和BRS 284为主要小区，以有无Co + Mo叶面施用为次要小区，分2个季节和8个重复。叶面施用在营养阶段V3和V5进行。结果表明，Co + Mo叶面施肥可使BRS 399第1季增产9.8%，BRS 284第2季增产15.4%。Co + Mo处理对BRS 399油菜叶片氮浓度、蛋白质产量和含油量均有显著的正向影响。BRS 284第1季只有叶片氮含量增加，第2季蛋白质产量增加。但与对照相比，Co + Mo处理对籽粒蛋白质和氮含量的影响不显著。叶面施用Co + Mo对籽粒产量、蛋白质产量和叶片氮浓度有正中性效应，影响氮素利用效率，这取决于天气条件和使用的大豆品种。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Agronomy Journal 农林科学-农艺学

CiteScore

4.70

自引率

9.50%

发文量

265

审稿时长

4.8 months

期刊介绍： After critical review and approval by the editorial board, AJ publishes articles reporting research findings in soil–plant relationships; crop science; soil science; biometry; crop, soil, pasture, and range management; crop, forage, and pasture production and utilization; turfgrass; agroclimatology; agronomic models; integrated pest management; integrated agricultural systems; and various aspects of entomology, weed science, animal science, plant pathology, and agricultural economics as applied to production agriculture. Notes are published about apparatus, observations, and experimental techniques. Observations usually are limited to studies and reports of unrepeatable phenomena or other unique circumstances. Review and interpretation papers are also published, subject to standard review. Contributions to the Forum section deal with current agronomic issues and questions in brief, thought-provoking form. Such papers are reviewed by the editor in consultation with the editorial board.