Common Beans Enriched with Zn By Its Application Via Soil and Via Foliar.

An experiment was carried on with 18 treatments defined with three doses of Zn (zero, 5 and 10 kg ha^-1) applied to soil and six Zn doses (0, 1, 1.5, 3, 6 and 10 kg ha^-1) applied to leaves. Bean production increased with the application of Zn in soil, but was not significantly influenced by foliar application of Zn. The Zn content in the grain increased with the soil and foliar application of Zn, reaching a maximum of 67.5 mg kg^-1 Zn in the grain. The Zn fertilization influenced P, S, Fe and Ca contents in grains, however the nutrient contents remained in the satisfactory range for the normal crop growth. There was a negative correlationship between grain yield and P, S and Fe contents in the grain. The grain Zn contents were negatively correlated with P and Fe contents and positively with Ca content. But these correlations were not related to any effect in the crop production. The Zn accumulated in the grain was found mainly in the embryo.