Studies on mineral nutrition of five stylo grown in a soil of savanah vegetation of São Paulo State, Brazil. I. Dry matter production, total amount of nitrogen and nodulation

Authors

  • Suely Aparecida Alves de Lima Savastano Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Seção de Nutrição de Plantas Forrageiras, Nova Odessa, SP
  • Herbert Barbosa de Mattos 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

Abstract

This experiment was carried out ai the Estação Experimental Central of the instituto de Zootecnia at Nova Odessa, São Paulo. It was used a Quartzons Sand soil of savanah vegetation and five stylo acessionns (S. humillis S. hamara, S. guyanensis cvs. Schofield, Endeavour and Cook) were studied. Acessions (five) and fertiliation treatments (twelve) were arranged in a factorial design (5 x 12) with three replications. The fertilization treatments consisted of a subtrative assay. It was measured the following parameters: dry matter production, total amount of nitrogen and nodulation. S. guyarnensis cv. Schofield showed the greatest dry matter production and S. humilis responded to the application of more nutrients than the other stylo acessions. Phosphorus was the most limitant nutrient to the normal growth and nodulations of the stylos. Potash had beneficial effects on all variables of Schofield and Cook cultivars and on nodulation of S. humilis, but depressed nodulation of S. hamata. Lime (1.2ton/ha) brought about positive effects on S. humilis and S. guyanensis cvs. Schofield and Cook. The highest lime rate (2.9ton/ha) was negativa to humilis and hamate species. The addition of sulphur favoured the development of S. guyanensis cv. Cook. The single application five micronutrients (B, Cu, Fe, Mc and Zn) resulted in increases on all parameters of S. humilis. Molybderium had positive effects on S. hameta where as iron was deleterious to S. guyanensis cv. Cook.

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Published

2014-01-29

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Studies on mineral nutrition of five stylo grown in a soil of savanah vegetation of São Paulo State, Brazil. I. Dry matter production, total amount of nitrogen and nodulation. (2014). Bulletin of Animal Husbandry, 39(1), 43-54. http://35.198.24.243/index.php/bia/article/view/208

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