Urochloa Hybrid Submitted to Biostimulant Application in Grazing Simulation

Luara Cristina De Lima,Reginaldo De Camargo,Regina Maria Quintão Lana,Fernanda Carvalho Basso,Atalita Francis Cardoso,Leandro Martins Barbero,Renato Aurélio Severino De Menezes Freitas

doi:10.5539/jas.v11n6p556

Luara Cristina De Lima, Reginaldo De Camargo + Show 5 more

Open Access

https://doi.org/10.5539/jas.v11n6p556

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Abstract

The objective of this work was to evaluate the performance of Urochloa hybrid Convert HD364 applied in different doses as a vegetable biostimulant under grazing simulation in intermittent stocking in the city of Uberl&acirc;ndia, Minas Gerais. The treatments consisted of a control (absence of biostimulant) and in 5 doses of biostimulant, 0.25; 0.5; 0.75; 1.0 and 1.25 L ha-1, in a randomized complete block design with 4 replicates. Productive and qualitative parameters were evaluated. The data were submitted to analysis of variance, using for the comparison of means, the Regression test at 5% of significance. The biostimulant promotes an increase in the accumulation of DM and in the rate of accumulation of forage, leaves and stems of Urochloa hybrid and reduction in the percentage of dead material and the L:S ratio of Urochloa hybrid.

Highlights

The Urochloa hybrid Convert HD364 is the result of crossing in three generations: Urochloa ruziziensis × Urochloa decumbens cv
The objective of this work was to evaluate the performance of the Urochloa hybrid Convert HD364, used as a biostimulant under grazing simulation significance
Biostimulants promote an increase in the accumulation of DM and in the rate of accumulation of forage, leaves and stems of Urochloa hybrid Convert HD364 and reduce the percentage of dead material and the relation of L:S of Urochloa hybrid Convert HD364

Summary

Introduction

Forage production is preponderant in Brazilian livestock as it deals with the most economical and practical way of producing food for most of the Brazilian cattle herd due to the low cost of production provided by pastures when compared to confinement systems (Berchielli et al, 2012).The use of new fertilizer technologies, such as the use of biostimulants, when applied externally in plants, promote activities similar to phytohormone groups that aid in defense mechanisms, promote growth and development (Neto et al, 2014), act as activators of plant cell metabolism, provide vigor to the immune system, and reactivate physiological processes in the different stages of plant development (Silva et al, 2010).In recent years, some studies have been carried out with the use of biostimulants in annual and perennial plants and presented controversial results in which positive results were found by authors such as Albrecht et al (2009) in cotton; Castro et al (2008); Albrecht et al (2011) and Albrecht et al (2012) in soybean; Costa et al (2010) in coffee and De Almeida et al (2014) in beans. Forage production is preponderant in Brazilian livestock as it deals with the most economical and practical way of producing food for most of the Brazilian cattle herd due to the low cost of production provided by pastures when compared to confinement systems (Berchielli et al, 2012). On the other hand, Ferreira et al (2007) in corn and Rampim et al (2012) in wheat did not obtain answers with the application of biostimulant. In Brazil, the expansion of cultivated pasture areas has occurred in large proportions, especially with species of the genus Urochloa, and probably was never equaled by other forages in any other tropical country (Costa et al, 2007). Basilik and the crosses of the progenies obtained in the first crossing with Urochloa brizantha cv. Marandu (Argel et al, 2007)

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