DESEMPENHO DE CULTIVARES DE SORGO E DE MILHETO SUBMETIDOS À ADUBAÇÃO NITROGENADA DE COBERTURA VIA PULVERIZAÇÃO FOLIAR

Abstract

The pear millet and sorghum they adapt to conditions of water deficiency, unfavorable to most of other cereals, very important factor for cultivations in regions or times of the year with irregular distributions of rain. Evaluate, in two experiments, the mass production and of grains of three cultivars of sorghum, and of mass of three cultivars of pear millet, submitted to the submitted to the nitrogen manuring applied on the leaves. The experiments were in field, of Dez/05 Mar/06. The sorghum and the pear millet were sowed with 0,50 m space among lines and 250 kg ha-1 of 08-28-16. In first experiment the treatments were constituted of three cultivars of pear millet (ADR-300, ADR-500 and BN-2), and the second were constituted of three cultivars of sorghum (Volumax, BRS-600 and BRS-800), submitted to 0, 15, 30 and 60 kg ha-1 of N spray on the leaves, too. The pear millet didn't answer the application of levels of nitrogen. The three cultivars of sorghum were equivalent in the production of dry matter. But they answered the application of levels of nitrogen, and the level that allowed the largest production was 15 kg.ha-1 of N. Para production of grains cultivate them BRS 600 and Volumax were same. But cultivating BRS 600 answered the application of nitrogen.

Keywords

• Sorghum
• Pear millet
• Nitrogen