Abstract
The objective was to evaluate the effects of maturity at harvest and row spacing on fermentative profile, aerobic stability, and nutritional value of biomass sorghum (BRS 716) silage. The experiment was conducted using a split-plot completely randomized block design with three row spacings (45, 70, and 90 cm) and four maturities at harvest (70, 100, 130, and 160 days) and eight replications. Polyvinyl chloride silos of known weight measuring 50 cm length and 10 cm diameter were used for [...]
Highlights
Sorghum (Sorghum bicolor (L.) Moench) has been grown in several regions of the world for silage due to its high mass production per unit area, good nutritional value, tolerance to water deficit, pests, and diseases, and appropriate fermentation characteristics when harvested at the correct maturity
The objective was to evaluate the effects of maturity at harvest and row spacing on fermentative profile, aerobic stability, and nutritional value of biomass sorghum (BRS 716) silage
BRS 716 biomass sorghum should be planted at 70-cm row spacing and harvested at 160 days for silage production based on fermentative profile, dry matter losses, and nutritional characteristics
Summary
Sorghum (Sorghum bicolor (L.) Moench) has been grown in several regions of the world for silage due to its high mass production per unit area, good nutritional value, tolerance to water deficit, pests, and diseases, and appropriate fermentation characteristics when harvested at the correct maturity. BRS 716, released in 2014 by EMBRAPA Maize and Sorghum, is an important alternative crop for cogeneration of energy by direct biomass burning in thermoelectric and sugarcane ethanol industries. This sorghum cultivar has potential for ensiling and use in ruminant diets due to its high mass productivity, reaching up to 50 t DM/ha. According to Bernardes et al (2018) and Monção et al (2019, 2020), plant maturity can modify the processes involved with fermentation of the ensiled mass and nutritional value of the silage produced. BRS 716 with equilibrium between mass yield and nutritional value of silage
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