Nutritional limitations to the development of perennial soybean grown in a mixed jaraguá grass pasture

Authors

  • José Monteiro Carriel Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Seção de Nutrição de Plantas Forrageiras, Nova Odessa, SP
  • Francisco Antonio Monteiro Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Seção de Nutrição de Plantas Forrageiras, Nova Odessa, SP
  • Valdinei Tadeu Paulino Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Seção de Nutrição de Plantas Forrageiras, Nova Odessa, SP
  • Hélio Jesses Sartini Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Setor de Ecologia das Pastagens, Nova Odessa, SP

Abstract

Two experiments were carried out in a greenhouse in the Instituto de Zootecnia at Nova Odessa, State of São Paulo, where perennial soybean was grown in a Ortho Dark-Red Latosol withdrew from a mixed pasture (jaraguá grass plus perennial soybean, siratro, centro and stylo) fertilized three years before with levels of single superphosphate (0 and 150 quilograms of P2O5 per hectare, named PO and P2). The results showed that phosphorus was the most limiting factor to the dry matter production, nodulation and total amount of nitrogen of perennial soybean. The €œminus lime€ treatment depressed the dry matter production of the plat tops, of the hole plants and the number of nodules of the legume. It was observed a residual effect of the fertilization with single superphosphate in the development of the legume. The €œminus potassium€, €œminus borum€ and €œminus molibdenum€ treatments were restrictive to the growth of perennial soybean in the soil from P2 Sulphur applied at 90kg/ha caused significant increases in the total amounth of nitrogen in the plant tops and hole plants. These effects were not observed when 30kg S/ha was applied.

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Published

2014-01-29

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Nutritional limitations to the development of perennial soybean grown in a mixed jaraguá grass pasture. (2014). Bulletin of Animal Husbandry, 40(2), 241-250. http://bia.iz.sp.gov.br/index.php/bia/article/view/661

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