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Dynamic of a papuã pasture under two grazing intensities and two nitrogen levels R. Bras. Zootec.
Adami,Paulo Fernando; Soares,André Brugnara; Assmann,Tangriani Simione; Assmann,Alceu Luiz; Sartor,Laércio Ricardo; Pitta,Christiano Santos Rocha; Franchin,Marcia Fernanda; Migliorini,Francisco.
This work aimed to evaluate the effects of grazing intensities and nitrogen fertilization levels on the dynamics of a Brachiaria plantaginea pasture. The experiment was laid out as a random block design, in a 3 × 2 factorial scheme, composed of three nitrogen levels (0, 200 and 400 kg/ha nitrogen in urea form) and two grazing intensities termed low mass (LM; forage mass of 1500 kg of DM/ha) and high mass (HM; forage mass of 3000 kg of DM/ha) in a continuously stocked swards with two replications. Animals used were half-blood Boer goats averaging five months old and 21 kg body weight (BW) for adjustment of the target forage mass. Real forage mass, average height of the plants and animal stocking rates were of 2,567 and 3,862 kg DM/ha; 23.6 and 31.2 cm and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachiaria plantaginea; Forage production; Forage nutritive value; Forage sward; Reseeding; Stocking rate.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001200003
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Grazing intensities and poultry litter fertilization levels on corn and black oat yield PAB
Adami,Paulo Fernando; Pelissari,Adelino; Moraes,Anibal de; Modolo,Alcir José; Assmann,Tangriani Simioni; Franchin,Marcia Fernanda; Cassol,Luís César.
The objective of this work was to assess the effect of poultry litter fertilization levels on corn and black oat yield using different grazing intensities, poultry litter levels (mixture of manure and bedding material) and a chemical fertilization level. The experimental design was a randomized complete block in a split-plot arrangement with four replicates. Black oat + ryegrass grazing intensities, characterized by different pasture sward management, with animal entrance at 25, 30 and 35-cm heights and exit at 5.0, 10 and 15-cm heights, were established at the main plots. After the grazing period, corn was grown at the subplots with four levels of poultry litter (0, 4,953, 9,907 and 14,860 kg ha-1), aiming to supply 0, 100, 200 and 300 kg ha-1 of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Avena strigosa; Zea mays; Chemical fertilizer; Organic fertilizer; Residual effect; Yield components.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000300007
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Year-round poultry litter decomposition and N, P, K and Ca release Rev. Bras. Ciênc. Solo
Pitta,Christiano Santos Rocha; Adami,Paulo Fernando; Pelissari,Adelino; Assmann,Tangriani Simioni; Franchin,Marcia Fernanda; Cassol,Luís César; Sartor,Laércio Ricardo.
Poultry litter is an important nutrient source in agriculture, although little information is available regarding its decomposition rate and nutrient release. To evaluate these processes, poultry litter (PL) was applied to the soil to supply 100, 200 and 300 kg ha-1 N contained in 4,953, 9,907 and 14,860 kg ha-1 PL, respectively. The litter bag technique was used to monitor the process of decomposition and nutrient release from the litter. These bags were left on the soil surface and collected periodically (after 15, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, and 365 days). The dry matter (DM) loss was highest (35 %) after the first 30 days of field incubation. The highest nutrient release occurred in the first 60 days on the field, when 40, 34,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Litter bag; Filed incubation; Organic fertilizer; Residual contents.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000300034
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