Publication Date

1997

Description

The experiment took place in Guarapuava-Brazil, from May 1994 to January, 1996 to evaluate the improvement of a subtropical native grassland by the introduction of species and phosphate fertilization. It was observed that for the higher dose applied there occurred an increase over the production of dry matter and crude protein production and absorption of P and K in the plant. A response was not found to the 180 kg P2O5/ha application probably because of the high capacity of soil adsorption, the method of fertilizer application, non favorable climatic conditions and liming interference. The single superphosphate-SS application was superior to Thermalphosphate- YT and Arad Rock Phosphate-ARP for production of dry matter and over the others sources for absorption of P and K, and only superior to YT for production of crude protein. The levels of Ca, Mg, NDF and ADF in the plant were also discussed.

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Improvement of Subtropical Native Grasslands with the Introduction of Forage Species and Phosphorous Fertilizers

The experiment took place in Guarapuava-Brazil, from May 1994 to January, 1996 to evaluate the improvement of a subtropical native grassland by the introduction of species and phosphate fertilization. It was observed that for the higher dose applied there occurred an increase over the production of dry matter and crude protein production and absorption of P and K in the plant. A response was not found to the 180 kg P2O5/ha application probably because of the high capacity of soil adsorption, the method of fertilizer application, non favorable climatic conditions and liming interference. The single superphosphate-SS application was superior to Thermalphosphate- YT and Arad Rock Phosphate-ARP for production of dry matter and over the others sources for absorption of P and K, and only superior to YT for production of crude protein. The levels of Ca, Mg, NDF and ADF in the plant were also discussed.