Open AccessEfeito de diferentes fontes e solubilidades de fósforo no desenvolvimento e nutrição do capim Mombaça
Author(s) -
Djalma Júnior de Almeida Tavares Souza,
Saulo Oliveira Lima,
Cleiriany Pereira da Silva,
Gilson Araújo de Freitas
Publication year - 2020
Publication title -
colloquium agrariae
Language(s) - English
Resource type - Journals
ISSN - 1809-8215
DOI - 10.5747/ca.2020.v16.n3.a373
Subject(s) - phosphorus , zoology , human fertilization , phosphate , biology , agronomy , chemistry , biochemistry , organic chemistry
Phosphorus is primordial for pasture and fertilization combined with phosphate sources that can increase the nutritional and productive quality of Mombasa. With that, the objective of this study was to evaluate the morphological, productive and nutritional characteristics of Mombaça grass submitted to combinations of soluble and natural phosphorus sources. The experimental design was randomized with ten treatments and four replications. Controls consist of three sources and six combinations of phosphorus sources equivalent to 90 kg ha-1 of P2O5, namely: Control, Phosphate Rock Tailings (RJ), Triple Superphosphate (ST), Yoorin Master 1 (YR), RJ + ST (70% and 30%), RJ + ST (50% and 50%), RJ + YR (70% and 30%),RJ + YR (50% and 50%), YR + ST (70% and 30) %), YR + ST (50% and 50%). Mombasa grass was grown in three cuts (60, 105 and 150 DAS). As combinations YR + ST (50% and 50%), YR + ST (70% and 30%) and RJ + YR (50% and 50%) provided positive results for agronomic characters and as RJ, RJ + ST (50 % and 50%) and RJ + YR (50% and 50%) for the P content. The phosphate addition, the source reduction and the mixture increased the Mombaça grass.