Estudo comparativo de formas de nitrogênio (sulfato de amônio e amônia anidra) na cultura de milho

Comparative study of nitrogen forms, ammonium sulfate, anhydrous ammonia on corn fertilization

NOTA

Estudo comparativo de formas de nitrogênio (sulfato de amônio e amônia anidra) na cultura de milho

Comparative study of nitrogen forms, ammonium sulfate, anhydrous ammonia on corn fertilization

H. Gargantini; D. dos Santos; J. Aloisi Sobrinho; Aldo Alves; A. Cobra Netto^*

SUMMARY

This paper reports the study of anhydrous ammonia and ammonium sulfate fertilizers, on corn yield. The experiments were carried out in the Experiment Stations at Campinas and Pindorama. The experiment at Campinas, was located on soil classified as "Latossolo Roxo" and in Pindorama, on a "Podzolized soil of Lins-Marilia".

Six treatments were compared in the field experiment in a randomized block design with four replications. All the treatments except the check, received PK fertilization at planting time of about 90 and 30 kg/ha of P₂O₅, and K₂O, respectively.

The yield indicated that anhydrous ammonia as well as ammonium sulfate gave similar results and there were neither significant differences between nitrogen fertilizer yield responses nor between nitrogen time application.

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

Recebida para publicação em 24 de setembro de 1968.

*

Os autores agradecem ao Sr. Erik Andersen, pela gentileza da aplicação da amônia anidra nos ensaios.

Datas de Publicação

• Publicação nesta coleção
  19 Mar 2009
• Data do Fascículo
  1968