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Keywords = Aruana Guinea grass

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14 pages, 481 KiB  
Article
Qualitative Production of Mixture Silage within a Sustainable Concept
by Karina Batista and F.P. Campos
Sustainability 2024, 16(15), 6398; https://doi.org/10.3390/su16156398 - 26 Jul 2024
Cited by 2 | Viewed by 1321
Abstract
Climate change and seasonality in forage production have caused alterations in animal feed. Thus, this study evaluated the composition of silages from soybean (Glycine max (L.) Merrill) mixed with tropical grasses. The experimental design was randomized blocks with four replications. Treatments were [...] Read more.
Climate change and seasonality in forage production have caused alterations in animal feed. Thus, this study evaluated the composition of silages from soybean (Glycine max (L.) Merrill) mixed with tropical grasses. The experimental design was randomized blocks with four replications. Treatments were silage from soybeans, silage from soybeans with Aruana Guinea grass (Megathyrsus maximus cv. Aruana), and silage from soybeans with Congo grass (Urochloa ruziziensis cv. Comum). Silos were stored for 60 days in the laboratory at room temperature. The silage from soybeans with Aruana Guinea grass showed the highest contents of dry matter, crude fiber, neutral detergent fiber, insoluble nitrogen in neutral detergent fiber, and insoluble nitrogen in acid detergent fiber but the lowest levels of crude protein and ether extract. The highest content of mineral material and hemicellulose was observed in the silage from soybeans with Congo grass. The silages from soybeans and soybeans with Congo grass showed no significant differences for acid detergent fiber and lignin. In conclusion, the use of tropical grasses as a component to improve the quality of silage from soybeans is an alternative for forage conservation in ruminant production systems, especially at the dry season. Full article
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5 pages, 558 KiB  
Proceeding Paper
Cropping System and Nitrogen Supply Interfere in Sustainability of Maize Production in the Dry Season
by Karina Batista, Alessandra Aparecida Giacomini, Luciana Gerdes and Waldssimiler Teixeira de Mattos
Biol. Life Sci. Forum 2024, 30(1), 5; https://doi.org/10.3390/IOCAG2023-15828 - 6 Nov 2023
Viewed by 567
Abstract
Diversification in cropping systems can increase production and reduce environmental impacts. Thus, we studied maize production as a function of the cropping system and the nitrogen rates applied as side-dressing. The experimental design involved randomized blocks with four replications in a split-plot scheme. [...] Read more.
Diversification in cropping systems can increase production and reduce environmental impacts. Thus, we studied maize production as a function of the cropping system and the nitrogen rates applied as side-dressing. The experimental design involved randomized blocks with four replications in a split-plot scheme. The main plots were maize monoculture; maize intercropped with Congo grass (Urochloa ruziziensis cv. Comum); and maize intercropped with Aruana Guinea grass (Megathyrsus maximus cv. Aruana). The subplots were four nitrogen rates (0; 50; 100 and 150 kg ha−1) applied as side-dressing. The maize and grasses row were fertilized with nitrogen. Maize intercropped with grasses needs an adequate nitrogen supply to be applied as side-dressing. Full article
(This article belongs to the Proceedings of The 2nd International Online Conference on Agriculture)
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17 pages, 1746 KiB  
Article
Tropical Grasses—Annual Crop Intercropping and Adequate Nitrogen Supply Increases Soil Microbial Carbon and Nitrogen
by Karina Batista and Laíze Aparecida Ferreira Vilela
Agronomy 2023, 13(5), 1275; https://doi.org/10.3390/agronomy13051275 - 28 Apr 2023
Cited by 3 | Viewed by 1806
Abstract
In Brazil, grain crops in no-till soybean–maize succession have reduced biodiversity and carbon input into soil. Intercropping is a promising approach to address these problems. This study aimed to evaluate the microbiological quality of soil in conventional and intercropping systems in soybean–maize succession, [...] Read more.
In Brazil, grain crops in no-till soybean–maize succession have reduced biodiversity and carbon input into soil. Intercropping is a promising approach to address these problems. This study aimed to evaluate the microbiological quality of soil in conventional and intercropping systems in soybean–maize succession, depending on tropical grass and nitrogen fertilizer uses. The treatments were arranged in a randomized complete block design and a split plot scheme, with four replications. The main plots consisted of the following cropping systems: soybean monoculture–maize monoculture; soybean intercropped with Aruana Guinea grass (Megathyrsus maximum cv. Aruana)–maize intercropped with Aruana Guinea grass; and soybean intercropped with Congo grass (Urochloa ruziziensis cv. Comun)–maize intercropped with Congo grass. The subplots consisted of nitrogen rates (0, 50, 100, and 150 kg ha−1) applied as side-dressing in rows of maize and tropical grass in the autumn–winter season. Our results showed that maize or soybean intercropped with tropical grasses and adequate nitrogen rates favored the entry of microbial carbon and nitrogen, stimulated enzymatic activity, and reduced C-CO2 loss. However, the excess nitrogen supply can nullify the benefits of the intercropping systems. We concluded that the intercropping systems can improve soil microbiological quality in a short time with adequate nitrogen supply. Full article
(This article belongs to the Special Issue Promoting Intercropping Systems in Sustainable Agriculture)
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