Efficiency of Utilization of Nitrogen Coated with Urease Inhibitor in Maize
| Autor: | Saldanha Ec, Antônio Augusto Nogueira Franco, Giebelmeier Cg, da Silva Rt, Paulo Vicente Contador Zaccheo, de Oliveira Nc, Mariano Dde C, de Albuquerque An, Okumura Rs, da S Lobato Ak, da Conceição He |
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| Rok vydání: | 2013 |
| Předmět: |
Crops
Agricultural Urease biology Nitrogen Potassium Compounds Randomized block design chemistry.chemical_element Oxides Phosphorus Compounds Zea mays chemistry.chemical_compound Animal science chemistry Agronomy Urea biology.protein Enzyme Inhibitors Fertilizers Agronomy and Crop Science Plant Proteins Field conditions |
| Zdroj: | Pakistan Journal of Biological Sciences. 16:871-876 |
| ISSN: | 1028-8880 |
| DOI: | 10.3923/pjbs.2013.871.876 |
| Popis: | This study aimed to evaluate under field conditions the efficiency in the use ofN coated with urease inhibitor in maize. The experiment was conducted in the year of 2007/2008. The experimental design was a randomized block design in a factorial 2 x 6, with five repetitions, constituted the N sources (common and coated with urease inhibitor) and levels (0, 40, 80, 120, 160 and 200 kg ha-1 of N) sidedressing nitrogen application in the growth stage V4. Based on the data obtained were determined recovery efficiencies, utilization, agronomic and physiological N applied. In all cases, the efficiency levels for maize were influenced by levels of sidedressing nitrogen application, in which increasing levels of N resulted in a decrease of the efficiencies, regardless of the source being common urea or coated with urease inhibitor. |
| Databáze: | OpenAIRE |
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