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Ammoniated babassu palm hay in anglo-nubian goat diets Ciência e Agrotecnologia
Moreira,Antonia Leidiana; Alves,Arnaud Azevêdo; Moreira Filho,Miguel Arcanjo; Silva,Daniel Cézar da; Garcez,Bruno Spíndola; Vasconcelos,Vânia Rodrigues.
ABSTRACT Leaves of babassu may be used in diets for goats under maintenance, however, it is a low-quality roughage due to its high fiber content. The chemical treatment by ammonia causes reduction in the proportion of the cell wall, in addition to providing non-protein nitrogen for the microbial protein synthesis in the rumen. Babassu palm hay ammoniated with 4% urea (BHAU4%) was evaluated in this study as a substitute for guinea grass hay in the maintenance diets of goats in terms of intake, digestibility in vivo, and the partitioning of energy and nitrogen compounds. Twenty Anglo-Nubian male goats were used in a randomised block design with four treatments (diets containing 0, 33, 66, or 100% BHAU4%) and five replicates (animals/block). The chemical...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestibility in vivo; Guinea grass; Native forage; Nitrogen balance; Orbignya phalerata Mart.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000600688
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Corn yield, forage production and quality affected by methods of intercropping corn and Panicum maximum PAB
Almeida,Rodrigo Estevam Munhoz de; Gomes,Caio Macret; Lago,Bruno Cocco; Oliveira,Silas Maciel de; Pierozan Junior,Clovis; Favarin,José Laércio.
Abstract: The objective of this work was to evaluate methods of intercropping corn and Panicum spp. forages and their effects on corn yield and forage development. Two experiments with Panicum spp. were conducted, one with 'Tanzania' and other with 'Massai' in the municipality of Piracicaba, in the state of São Paulo, Brazil, in the 2012/2013 growing season. In both experiments, the treatments were: broadcast seeding of Panicum spp. at the same time of corn sowing; corn with Panicum spp. between rows; Panicum spp. sown with fertilizer; Panicum spp. sown between corn rows after corn establishment; broadcast seeding of Panicum spp. after corn establishment; and sole corn sowing. For corn, leaf nitrogen content, ear height, and grain yield were evaluated. For...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays; Guinea grass; Interspecific competition; Tropical perennial grass.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000300170
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Effect of environmental factors on the germination of Megathyrsus maximus: an invasive weed in sugarcane in Argentina Planta Daninha
C. Cabrera,Debora; Sobrero,María T.; Pece,Marta; Chaila,Salvador.
Abstract Background: Megathyrsus maximus (Jacq.) is a perennial weed that affects many crops. In Argentina, sugarcane is the most affected. Objective: Study effective techniques to break dormancy and the effect of environmental factors on the germination of this weed. Methods: Experiments were carried out in cabinet incubators twice, with five replicates per treatment. The experimental unit was made up for 50 seeds. Results: Seed dormancy was strongly associated with the presence of glumes. Manual extractions of glumes and immersion in sulphuric acid were the most effective techniques for breaking dormancy. Megathyrsus maximus did not depend on light to germinate, and it did so both under a 12 h-light-dark photoperiod and in complete darkness, with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Megathyrsus maximus; Guinea grass; Scarification; Salt stress; Temperature; Osmotic stress; Dormancy.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100304
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Interference Relationships Between Weeds and Sugarcane in the ‘Plene’ System Planta Daninha
MOSSIN,C.B.; HIJANO,N.; NEPOMUCENO,M.P.; CARVALHO,L.B.; ALVES,P.L.C.A..
ABSTRACT: Sugarcane is one of the most important crops planted in Brazil in that the presence of weeds in the fields has promoted significant yield reduction. The objective of this work was to evaluate the differential growth response of two sugarcane varieties cropped in the ‘Plene’ system as a function of the coexistence with different weed species. Treatments consisted of the coexistence of Bidens pilosa plus Ipomoea quamoclit, Ipomoea hederifolia, Amaranthus viridis, Urochloa plantaginea, Panicum maximum, and Digitaria horizontalis with two sugarcane varieties (RB92579 and SP80-1842) cropped in the ‘Plene’ system, in addition to a control without weeds. The design was completely randomized with three replicates. Dry matter accumulation of weeds was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum officinarum; Morning glory; Slender amaranth; Marmalade grass; Guinea grass; Jamaican crabgrass.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100188
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S-metolachlor efficacy on the control of Brachiaria decumbens, Digitaria horizontalis, and Panicum maximum in mechanically green harvested sugarcane Planta Daninha
Correia,N.M.; Perussi,F.J.; Gomes,L.J.P..
The aim of this study was to assess the efficacy of S-metolachlor applied in pre-emergence conditions for the control of Brachiaria decumbens, Digitaria horizontalis, and Panicum maximum in sugar cane mechanically harvested without previous burning of the crop (green harvest) with the crop residue either left or not on the soil surface. The experiments were established in the field according to a randomized complete block design with four repetitions in a 7 x 2 split-plot scheme. In the plots, five herbicide treatments were studied (S-metolachlor at 1.44, 1.92, and 2.40 kg ha-1, clomazone at 1.20 kg ha-1, and isoxaflutole at 0.188 kg ha-1), and two control treatments with no herbicide application. In the subplots, the presence or absence of sugar cane crop...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Signal grass; Crabgrass; Guinea grass; Crop residue.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582012000400021
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