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Maize Morphophysiological Changes Modulated by Cover Crops Rotation in Northeast Brazil.

Authors :
Souza, José Wilker Germano de
Luz, João Henrique Silva da
Silva, Dayane Mércia Ribeiro
Silva, Ricardo Barros
Costa, Bruno Richardson dos Santos
Melo, Alan Fontes
Santos, Hugo Rodrigues dos
Marques, Isabelly Cristina da Silva
Sousa, Jadielson Inácio de
Vanderley, Mariana Bernardino
Barbosa, Luana do Nascimento Silva
Farias, Maria Raquel da Silva
Farias, Emerson dos Santos Ferreira
Paulino, Sivaldo Soares
Santos Neto, Antônio Lucrécio dos
Pavinato, Paulo Sergio
Silva, José Vieira
Santos, Valdevan Rosendo dos
Source :
Stresses; Dec2024, Vol. 4 Issue 4, p699-713, 15p
Publication Year :
2024

Abstract

Cover crops have gained attention due to their potential benefits for the soil and physiological performance of subsequent crops. This study aimed to evaluate the physiological and productive aspects of maize grown in succession to cover crops in northeastern Brazil. A randomized complete block design with four repetitions was employed, in which the treatments consisted of the following cover crops: sunn hemp, spectabilis, pigeon pea, Brachiaria sp., jack bean, millet, and fallow. Physiological aspects and production components of maize were evaluated at the tasseling (VT) and smooth grain (R3) phenological stages. Millet cover increased carotenoid content in maize leaves by up to 78% at R3. Maize grown after pigeon pea, millet, and Brachiaria sp. showed up to 42% greater CO<subscript>2</subscript> assimilation efficiency compared to jack bean. Carboxylation efficiency increased by up to 34% in maize grown after millet and Brachiaria sp., while water use efficiency improved by up to 76% in maize after sunn hemp and pigeon pea at R3. Sunn hemp, spectabilis, and jack bean reduced soil temperature by 2 °C compared to fallow. The highest maize yield was observed after jack bean, with an 8% increase over fallow. These findings demonstrate the benefits of incorporating cover crops into maize cultivation systems in the semi-arid region of Brazil. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
26737140
Volume :
4
Issue :
4
Database :
Complementary Index
Journal :
Stresses
Publication Type :
Academic Journal
Accession number :
181939719
Full Text :
https://doi.org/10.3390/stresses4040045