Basic cation saturation ratio as liming criterion for three tropical forage legumes

Authors

  • Linda Monica Premazzi Engenheira Agrônoma
  • Herbert Barbosa de Mattos Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Seção de Nutrição de Plantas Forrageiras, Nova Odessa, SP

Keywords:

liming, basic cation saturation ratio, neonotonia wightii, matrotyloma axillare, stylosanthes guianensis, forage legumes

Abstract

Three tropical forage legumes under increasing basic cation saturation ratio (BCSR) were grown in greenhouse in order to be determined the ratio on which best response is reached on dry matter yield basis. The four BCSR were: 10, 30, 50 and 70%, provided by an addition of calcium and magnesium oxides equivalent to 0; 1.2; 2.4 and 3.6 t/ha of lime, with five replications. A complete randomized design was used. Soil analysis at the 20th. day showed in increase in pH and BCSR values and a decrease in Al3 values due to liming. Maximum dry matter yields were obtained with 57% for perennial soybean (Neonotonia wightii Lakey var. Tinaroo) and 35% for stylo (Srylosanthes guianensis Sw. cv. Bandeirante). Maximum yield was not achieved by macrotiloma(Macrotyloma axillare Verdc.) cv. Guatá which showed linear increases up to the higher BCSR used. The increases in basic cation saturation ratios resulted in an linear increase in root nodule numbers by perennial soybean and an increase in nodule weight up to the 49% ratio. For macrotiloma, nodule weight and numbers increased linearly.

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Published

2014-01-14

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Basic cation saturation ratio as liming criterion for three tropical forage legumes. (2014). Bulletin of Animal Husbandry, 48(2), 101-114. http://bia.iz.sp.gov.br/index.php/bia/article/view/868

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