Effect of phosphorus, potassium and micronutrients levels in jaragua grass perenial soybean mixture

Authors

  • José Monteiro Carriel Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Setor de Ecologia das Pastagens, Nova Odessa, SP
  • Pedro Luís Guárdia Abramides Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Setor de Ecologia das Pastagens, Nova Odessa, SP
  • Maria Tereza Colozza Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Seção de Nutrição de Plantas Forrageiras, Nova Odessa, SP
  • Nelson Morato Ferraz Meirelles Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Setor de Ecologia das Pastagens, Nova Odessa, SP

Keywords:

phosphorus, potassium, micronutrients, mixed pasture

Abstract

The effect of level of P, K, B,Cu and Zn was measured in a small plot experiment with jaragua grass plus perenial soybean pasture. The experimental design was a randomized block with two replications. where the treatments were combined in an incomplete factorial using a modified central composite design. At seeding time, it was used a diferential fertilization, applying only 20kg of P2O5/ha in the rows of the grass. While, in the rows of the the legume P, K, B, Cu and Zn fertilizations were applied according to the level combinations. In the mixture, the legume. and the grass+ legume yields were increased up to the aplication of about 70kg of K2O/ha after each harvest, and linearly with the levels of phosphorous applied at the seeding time. Grass yield decreased linearly as phosphorus levels increased in the legume row, showing that as the establishment speed of the legume is stimulated by P fertilization the one of the grass, fertlized with a low level of P in its lines, is impaired.

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Published

2014-01-14

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Effect of phosphorus, potassium and micronutrients levels in jaragua grass perenial soybean mixture. (2014). Bulletin of Animal Husbandry, 52(1), 9-21. http://35.198.24.243/index.php/bia/article/view/793

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