The management of irrigated elephant grass intercropped with legumes in the semi-arid region
DOI:
https://doi.org/10.22319/rmcp.v15i4.6758Palabras clave:
Cajanus;, stylo, grass, forage massResumen
The present study aimed to evaluate the production and chemical composition of elephant grass (Pennisetum purpureum syn. Cenchrus purpureus cv. Mott) intercropped with Cajanus cajan (Mandarim and Fava Larga) and Stylosanthes guianensis (Bela) compared to its cultivation in monoculture under irrigated management in the semi-arid region. The experiment was conducted at the Campus of Agricultural Sciences of the Federal University of the São Francisco Valley, Petrolina, Brazil. The experiment consisted of the following treatments: elephant grass intercropped with each legume and two monoculture types, one with nitrogen fertilization (200 kg ha-1) and the other without. The legumes helped to improve the quality of the forage canopy, with high levels of crude protein. Nitrogen fertilization increased the mass of forage produced by elephant grass. The cumulative analysis of all the cuts showed that the intercropping between elephant grass and the Bela cultivar achieved the highest yield, with 13.49 Mg ha-1, mainly due to the increase in the population of the Bela, which proved to be superior to the other legumes over the cuts. Based on the results, the intercropping of elephant grass with the Bela cultivar is recommended as the most effective strategy for maximizing forage production in the semi-arid region.
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