巴西半干旱区接种根瘤菌豇豆品种的农艺性能

IF 0.9 4区农林科学 Q3 AGRONOMY

Revista Caatinga Pub Date : 2023-01-01 DOI:10.1590/1983-21252023v36n406rc

Pedro R. H. de Oliveira, Welder de A. R. Lopes, Flávio P. da M. Silveira, Manoel G. dos Santos, Gisele L. dos Santos, Silvana F. da Silva, Lindomar M. da Silveira, Aurélio P. Barros Júnior

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引用次数: 0

摘要

摘要本研究旨在评价在半干旱环境下接种豇豆推荐根瘤菌的豇豆品种的农艺效率。实验分两个农业周期在Mossoró，里约热内卢Grande do Norte进行:第一个农业周期为2019年1月至4月，第二个农业周期为同年6月至8月。试验设计采用随机区组，4个重复，按4 × 4 × 2因子设计，处理4个豇豆品种:“BRS Imponente”、“BRS Itaim”、“BRS Novaera”和“BRS Tumucumaque”以及三个氮源，豇豆注册的两株缓生根瘤菌(br3262和br3267)，以及施用矿物氮(50 kg hm -1)，超出绝对控制，除了两个种植季节外，不接种或施用矿物氮。栽培品种‘BRS Tumucumaque’显示出较大的生产潜力。用缓生根瘤菌br3262和br3267接种豇豆种子，籽粒产量与施用矿质氮的籽粒产量相近。

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Agronomic performance of cowpea cultivars inoculated with rhizobia in the brazilian semiarid region

ABSTRACT This work aimed to evaluate the agronomic efficiency of cowpea cultivars inoculated with rhizobia strains recommended for cowpea in a semiarid environment. Experiments were carried out in Mossoró, Rio Grande do Norte, in two agricultural cycles: the first from January to April 2019, and the second from June to August of the same year. The experimental design adopted was randomized blocks with four replications arranged in a 4 × 4 x 2 factorial scheme, with treatments consisting of four cowpea cultivars: ‘BRS Imponente’, ‘BRS Itaim’, ‘BRS Novaera’, and ‘BRS Tumucumaque’ as well as three sources of N, two strains of Bradyrhizobium spp. registered for cowpea (BR 3262 and BR 3267) and, the application of mineral N (50 kg ha-1), beyond an absolute control, without inoculation or application of mineral N. In addition to two planting seasons. The cultivar ‘BRS Tumucumaque’ showed greater productive potential. The inoculation of cowpea seeds with Bradyrhizobium strains BR 3262 and BR 3267 provided grain yields similar to those obtained with the application of mineral N.

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来源期刊

Revista Caatinga AGRONOMY-

CiteScore

2.10

自引率

11.10%

发文量

审稿时长

6-12 weeks

期刊介绍： A Revista Caatinga é uma publicação científica que apresenta periodicidade trimestral, publicada pela Pró-Reitoria de Pesquisa e Pós-Graduação da Universidade Federal Rural do Semi-Árido – UFERSA, desde 1976. Objetiva proporcionar à comunidade científica, publicações de alto nível nas áreas de Ciências Agrárias e Recursos Naturais, disponibilizando, integral e gratuitamente, resultados relevantes das pesquisas publicadas.