Sustainable Production of Forage Sorghum for Grain and Silage Production with Moisture-Retaining Polymers That Mitigate Water Stress

Author:

Ferreira Daniele de Jesus1,Costa Neta Clotilde de Morais1,Zanine Anderson de Moura1ORCID,Santos Francisco Naysson de Sousa1ORCID,Pereira Danillo Marte1ORCID,Campos Fleming Sena1,Parente Henrique Nunes1,Parente Michelle de Oliveira Maia2ORCID,Rodrigues Rosane Claudia1,Santos Edson Mauro3,de Sousa Francisca Cláudia da Silva3,Alves Guilherme Ribeiro4

Affiliation:

1. Department of Animal Science, Federal University of Maranhão, Chapadinha 65500-000, MA, Brazil

2. Department of Animal Science, Federal University of Piauí, Teresina 64049-550, PI, Brazil

3. Department of Animal Science, Federal University of Paraíba, Areia 58051-900, PB, Brazil

4. Department of Animal Science, Federal University of Bahia, Salvador 40170-115, BA, Brazil

Abstract

The objective was to evaluate the agronomic and production characteristics and the quality of forage sorghum for silage production, using a moisture-retaining polymer (MRP) in the soil during the agricultural off-season. To assess the agronomic characteristics of the forage sorghum, four treatments were used, represented by the MRP hydration intervals (Control, 0, 5, and 10 days) and four replications. The qualitative characteristics of the silage were evaluated in a 4 × 2 factorial scheme, and the same MRP hydration intervals were used for the agronomic assessment, with and without the concentrate mixture at the time of ensiling, both in a randomized block design. There were differences (p < 0.05) for all morphological variables, agronomic variables, and weight constituents of forage sorghum. There was an interaction effect (p < 0.05) between the MRP hydration intervals and the concentrate mixture at the time of ensiling for gas losses, silage dry matter recovery, and ether extract. There was an effect (p < 0.05) due to the addition of the concentrate mixture at the time of ensiling for in vitro dry matter digestibility and total digestible nutrients. When using MRP at planting and the concentrate mixture at the time of forage sorghum ensiling, a hydration interval of every 5 days is recommended.

Funder

Coordination for the Improvement of Higher Education Personnel

National Council for Scientific and Technological Development

Research and Scientific and Technological Development of Maranhão

Publisher

MDPI AG

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