Lecitina, silicone e amido na adubação foliar de couve (Brassica oleracea L.)
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Data
2010-12
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Resumo
The objective of the present work was to evaluate the effect of lecithin, starch and silicon may have in the efficiency of foliar
feeding, using salts and chelates as source of nutrients. The experiment was carried out under greenhouse condition at Univerdidade
Federal de Goiás (Jataí unit) - GO, set in a completely randomized design, with six replications, four factors in study and two levels
each, making a 2x2x2x2 factorial arrangement, totalizing 16 treatments. Moreover, a control was added as an additional treatment,
totalizing, 102 experimental units. Each experimental unit consisteed of by a vase of collard green plant (Brassica oleracea L. var.
acephala DC.). The treatments consisted of 2 minor nutrient sources (sulfate and chalate) and of absence and presence of three
substance added to the spray solution: soydean lecithin de-waxed, a commercial silicon surfactant and starch. After analyses of the
leaves, 30 days after the pulverization, it was clear that the amount of zinc and manganese was influenced by the adjutants and
fertilizer. The use of lecithin increased the absorption of zinc sulfate whereas the use of silicon increased the absorption of zinc
chelate. Both chelate and sulfate increased the absorption of manganese. Starch had no influence on micronutrient.
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Palavras-chave
Adjuvantes, Cutícula, Manganês, Quelatos, Zinco, Adjuvant, Chelate, Cuticle, Manganese, Zinc
Citação
MARTINS, Rosmany Aires Cunha; PEREIRA, Hamilton Seron Pereira; REIS, Edésio Fialho dos. Lecitina, silicone e amido na adubação foliar de couve (Brassica oleracea L.). Ciência e Agrotecnologia, Lavras, v. 34, p. 1470-1476, nov./dez. 2010.