Effect of irrigation and nitrogen fertilization on crude protein content of Elephantgrass (Pennisetum purpureum var. Pioneiro)

Authors

  • Braz Henrique Nunes Rodrigues
  • João Avelar Magalhães
  • Alex Carvalho Andrade
  • Maria Socorro de Souza Carneiro
  • Newton de Lucena Costa
  • Francisco José de Seixas Santos
  • Eduardo Esmeraldo Augusto Bezerra

DOI:

Keywords:

irrigated grassland, irrigation levels, nutrition

Abstract

The objective of this work was evaluate the effect of different irrigation levels and nitrogen fertilization on the crude protein content (%PB) of forage grass Pennisetum purpureum cv. Pioneiro. The work was carried at Embrapa Meio-Norte Experimental Area in Parnaíba, Piauí State,Brazil. The irrigation depths were applied as a function of Class “A” pan evaporation fractions (ECA) (0.2, 0.6 and 1.0). The nutrient levels used were 100, 200 and 300 kg/ha of N (urea) broadcast applied. During the evaluation period, five cuts were taken. The increase of the irrigation sheets didn’t present significant effect on the %PB of the grass, but the effect of the nitrogen fertilization was linear. The irrigation depths corresponding to 0.2 ECA and level of fertilization of 300 kg/ha of N presented the best combination, in function of the %PB ones and the possibility of economy of water, with reduction in the costs of production of the forage.

Published

2015-09-09

Issue

Section

Pastagem e forragicultura

How to Cite

1.
Rodrigues BHN, Magalhães JA, Andrade AC, Carneiro MS de S, Costa N de L, Santos FJ de S, et al. Effect of irrigation and nitrogen fertilization on crude protein content of Elephantgrass (Pennisetum purpureum var. Pioneiro). Pubvet [Internet]. 2015 Sep. 9 [cited 2025 Jun. 5];5(04). Available from: http://ojs.pubvet.com.br/index.php/revista/article/view/2398

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