Rice is one of the main cereals that present high response to zinc addition. The present study assessed the effect nutrition and initial growth of rice crop, cultivar BRS-Soberana, different sources of Zn application on seeds, from two. A completely randomized design was used, with three replications. Treatments used were zinc from sulphate and oxide sources in five dosages of 1.0; 2.0; 4.0 and 8.0g of Zn per kg of seed, and an untreated control. Levels of zinc and its accumulation, as well as dry matter from the aerial part and the roots of the plants were evaluated thirty days after seed planting. The zinc sulphate did not differ from the oxide source when considering production of dry matter in the rice seedlings, although it propitiated higher Zn absorption by the plants. The addition of zinc as sulphate and oxide at an 8g Zn.kg-1 of seed dosage propitiated higher dry matter production, attaining 281 e 163 mg.kg-1 nutrient levels respectively, in the aerial part of the plants.
Fertilization; micronutrients; mineral nutrition; Oryza sativa L.; seed treatment
