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Field evaluation of water or citrate soluble phosphorus in modified phosphate rocks for soybean Scientia Agricola
Prochnow,Luís Ignácio; Cunha,José Francisco da; Ventimiglia,Ariel Francisco Candiotti.
Ten P fertilizers were collected (commercial fertilizers) or synthesized (experimental sources) in order to obtain single superphosphates varying in water and citrate solubility. A standard source of P was also produced by crystallization of the water-soluble fraction of a triple superphosphate. Eleven P sources were band applied to a medium textured Xanthic Hapludox, in Bahia, Brazil (low content of resin-extractable P) at a rate of 80 kg ha-1 of NAC + H2O (neutral ammonium citrate plus water) soluble P2O5, with soybean as the crop which was grown to maturity. A check plot (control) was included in the study. Three of the P sources [single superphosphate produced from Araxa phosphate rock (PR), low-grade single superphosphate produced from Lagamar PR and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acidulated phosphates; Available P; Phosphorus sources; Water-insoluble P.
Ano: 2001 URL:
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