Bromatologic composition the Marandu grass under effect of different irrigation and nitrogen fertilization
DOI:
https://doi.org/10.5433/1679-0359.2015v36n2p933Keywords:
ADF, Crude protein, Dry matter, NDF.Abstract
The effects of different irrigation and nitrogen (N) on the chemical composition of Brachiaria brizantha var. Marandu were evaluated. The study was conducted at Embrapa Mid-North, located in the city of Parnaíba, Piauí. The treatments consisted of two irrigation levels (replacement of 50% and 80% of Class A pan evaporation - ECA) and four levels of nitrogen (200, 400, 600 and 800 kg N ha-1 ano-1), in a block randomized in a 2 x 4 factorial design with three replications. The irrigation 50% of class A pan evaporation promotes an increase in dry matter and reduces the levels of neutral detergent insoluble fiber (NDF) and acid detergent insoluble fiber (ADF), however, does not influence the content of crude protein, while the nitrogen confers increased protein levels and provides gross decrease in NDF and ADF of leaves, improving the nutritional value of the Marandu grass.
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