Phosphorus use efficiency by maize cultivars for the production of green ears

IF 1.3 4区农林科学 Q3 AGRICULTURAL ENGINEERING

Revista Brasileira de Engenharia Agricola e Ambiental Pub Date : 2020-08-01 DOI:10.1590/1807-1929/agriambi.v24n8p547-553

A. F. Almeida, Leilson Costa Grangeiro, Núbia M. Ferreira, V. V. Gomes, Santiago A. Silva, R. Lacerda

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引用次数: 3

Abstract

ABSTRACT The objective of this study was to evaluate the efficiency of the use of phosphorus by maize cultivars for the production of green ears. Two experiments were carried out, one in the rainy season (March to June) and the other in the dry period (August to December), both at the Rafael Fernandes Experimental Farm, in the community of Alagoinha, belonging to the Universidade Federal Rural do Semiárido, in the municipality of Mossoró, RN, Brazil. The treatments consisted of a combination of three levels of phosphorus (low, medium and high) and eight corn cultivars (Dona Josélia, Carrapateira, Pontinha, Cruzeta, Potiguar, BRS 2022, Status and AG 1051). A randomized block design was used in a 3 × 8 factorial scheme, with four repetitions. The evaluated characteristics were: number and total mass of green ears, number and mass of tradable, stuffed and depleted green ears, agronomic and physiological efficiency of production of recovery and use of phosphorus. The cultivars showed better productive performance when fertilized with phosphorus. The cultivars Cruzeta, Potiguar, BRS 2022, Status, AG 1051 and Carrapateira were the most efficient in the use of phosphorus to produce green maize.

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玉米品种对绿穗生产的磷利用效率

摘要本研究旨在评价不同玉米品种在绿穗生产中的磷利用效率。两项试验分别在雨季(3月至6月)和旱季(8月至12月)进行，试验地点均在巴西RN Mossoró市Semiárido联邦农村大学Alagoinha社区Rafael Fernandes实验农场。这些处理包括低、中、高3个磷水平和8个玉米品种(Dona jos、Carrapateira、Pontinha、Cruzeta、Potiguar、BRS 2022、Status和AG 1051)的组合处理。在3 × 8因子方案中采用随机区组设计，重复4次。评价指标为:青穗数和总质量，可交易、填实和衰竭青穗数和质量，磷素生产和回收利用的农艺和生理效率。施磷后，品种表现出较好的生产性能。绿玉米品种Cruzeta、Potiguar、BRS 2022、Status、AG 1051和Carrapateira对磷的利用效率最高。

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来源期刊

Revista Brasileira de Engenharia Agricola e Ambiental Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

2.70

自引率

16.70%

发文量

114

审稿时长

3-8 weeks

期刊介绍： A Revista Brasileira de Engenharia Agrícola e Ambiental (Agriambi), periódico oficial da Asociación Latinoamericana y del Caribe de Ingeniería Agrícola (ALIA), é editada mensalmente, no formato eletrônico, pela Unidade Acadêmica de Engenharia Agrícola (UAEA) do Centro de Tecnologia e Recursos Naturais (CTRN) da Universidade Federal de Campina Grande (UFCG), destinando-se à divulgação de artigos científicos originais e inéditos, elaborados em Português, Inglês ou Espanhol. Com o auxílio de pareceres de Consultores, os artigos são aceitos ou não pela Equipe Editorial para publicação na Revista. A Agriambi aceita, também, a submissão de contribuições na modalidade de revisão de literatura.