Nutritional limitations of two hydromorphic soils of São Paulo State for the growth of tropical kudzu

Authors

  • Maria Tereza Colozza Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Seção de Nutrição de Plantas Forrageiras, Nova Odessa, SP
  • Joaquim Carlos Werner 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
  • José Monteiro Carriel Assessoria Técnica de Programação

Abstract

In green-house experiments held at Instituto de Zootecnia, Nova Odessa, State of São Paulo, Brazil, it was studied the nutritional lirnitations of hydromorphic soils from two counties of the state of So Paulo (Nova Odessa and Pindamonhangaba) for the growth of tropical kudzu (Pueraria phaseoloides (R.) Benth.). The treatments of the omission type, were arranged in a randomized complete block design. The results showed the omission of phosphatic fertilization was the most limiting factor for the establishment, development and nitrogen fixation by tropical kudzu in the soils of both counties. The omissions of potash sulphur and micronutrient fertilizations to both soils did not limit significantly the kudzu yield along the experimental phase. Liming increased Ca and Mg contents, pH, base saturation and reduced exchangeable H + A1 of both soils. At the same time increased plant Ca and Mg contents. This, however, did not cause significative increases in the field of tropical kudzu. The use of Ca and Mg chlorides in a treatment without lime, reduced its yield instead of increasing it. This, could be due to a probable manganese toxicity induced by the soil acidification.

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Published

2014-01-29

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Nutritional limitations of two hydromorphic soils of São Paulo State for the growth of tropical kudzu. (2014). Bulletin of Animal Husbandry, 43(2), 269-283. http://bia.iz.sp.gov.br/index.php/bia/article/view/582

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