Nitrate occluded in zeolite 4A: absorption and leaching of nitrogen in the cultivation of corn

Quimica nova

Romero, Ricardo Espíndola¹  Silva, Lindomar Roberto Damasceno da¹  Soares, Ismail¹  Andrade, Jardel Cavalcante Rolim de Almeida¹ 

[1] Universidade Federal do Ceará, Fortaleza, Brasil

关键词: occlusion;    release of nitrogen;    fertilization.;   

DOI  :  10.1590/S0100-40422011000900015

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Systematic studies were undertaken in the intra zeolitic media to better understand the ability of zeolite type LTA in occluded nitrogen used in fertilizer and soil conditioning. We have measured the dry matter production from the cultivation of corn in a greenhouse for about 40 days, and also the amounts of nitrogen absorbed, retained and lost by leaching. The dry matter production in the cultivation with different concentrations of nitrogen occluded in the zeolite, was more efficient than the traditional fertilizer, which demonstrated better use of nitrogen to reduce leaching losses, which implies a possible reduction of costs for nitrogen.

【 授权许可】

CC BY