Artículos de revistas
Resposta do trigo à aplicação foliar de zinco
Fecha
2012-05-01Registro en:
Ciencia Rural, v. 42, n. 5, p. 784-787, 2012.
0103-8478
1678-4596
10.1590/S0103-84782012005000015
2-s2.0-84863564640
Autor
Universidade Estadual Paulista (UNESP)
Universidade Estadual do Oeste do Paraná (UNIOESTE)
Institución
Resumen
Wheat is grown in Brazil, mostly in no-till, a system in which the zinc can become potentially deficient, due to excessive application of acidity corrective and phosphate fertilizers in surface and, or at shallow depths. This study aimed to evaluate the effect of foliar application of zinc in agronomic characteristics and yield of wheat. The experimental design was randomized blocks with five replications. Treatments consisted of four doses of zinc (0, 54, 108 and 216g ha-1 Zn), divided into two foliar applications, the first at tillering (18 days after plant emergence) and the second at the boot stage (65 days after emergence). Foliar application of zinc increased the number of fertile tillers and yield of wheat, however, have little effect on the agronomic characteristics of no-tilled crop with high nutrient content in soil.