Caracter赤sticas agron micas e nutricionais do capim-Marandu em fun o da aplica o de res赤duo l赤quido de frigor赤fico = Agronomic and nutritional characterstics of Marandu grass from the application of liquid slaughterhouse effluent

作者：Sabino Pereira da Silva Neto; Jose Expedito Cavalcante da Silva; Antonio Clementino dos Santos; Jose Gerley Diaz Castro

来源：Acta Scientiarum - Animal Sciences, 2010.

• aduba o organica
• Brachiaria brizantha L.
• efluentes da agroindustria
• teores de nutrientes
• organic fertilization
• slaughterhouse effluents
• nutritional content

Este experimento foi realizado com o objetivo de avaliar o efeito da aplica o de res赤duo l赤quido de frigor赤fico (RLF) sobre os valores da massa seca total, 赤ndice de 芍rea foliar, taxa de crescimento cultural, n迆mero total e peso m谷dio de perfilhos, altura de plantas e nos teores de N, P e K+ no tecido vegetal da pastagem de capim-Marandu em Neossolo Quartzar那nico 車rtico. Foram aplicadas tr那s doses de RLF (37,5; 75 e 112,5 m3 ha-1), al谷m da testemunha. O delineamento experimental utilizado foi em blocos inteiramente casualizados. A produ o de massa seca total, o 赤ndice de 芍rea foliar, taxa de crescimento cultural, o n迆mero e peso m谷dio de perfilhos bem como a altura de plantas aumentaram linearmente (p %26lt; 0,05) com as doses crescentes de RLF. Os teores de N, P e K+ tiveram resposta segundo modelo de regress o linear (p %26lt; 0,05) com aplica o de RLF. A concentra o de N ficou na faixa adequada para o capim-Marandu. Os teores de P e K, apesar da resposta positiva 角s doses de RLF, foram inferiores 角 taxa de varia o adequada no tecido vegetal do capim-Marandu. This experiment was carried out to evaluate the effect of liquid slaughterhouse effluent (LSE) on values of total dry mass, leaf area index, culture growth rate, total tiller number and weight, plant height and the levels of N, P and K+ in plant tissue of the pasture Marandu grass in Entisol. Three levels of LSE (37.5, 75 and 112.5 m3 ha-1) were applied, as well as a control. The experimental design was completely randomized blocks. The total dry mass production of leaf area index, culture growth rate, tiller number and weight and plant height increased linearly (p %26lt; 0.05) with increasing levels of LSE. The levels of N, P and K+ responded according to a linear regression model (p %26lt; 0.05) with application of LSE. The concentration of N was in the range suitable for Marandu grass. The levels of P and K+, in spite of the positive response to LSE doses, were lower than the adequate rate of variation in the plant tissue of Marandu grass.