Development of corn seedlings under doses of vinhace

Corn (Zea mays L.) is the most planted grain throughout the world. However, it is a crop sensitive to nutritional deficiencies, such as nitrogen (N), phosphorus (P), potassium (K) and calcium (Ca). For this reason, numerous investigations have been carried out to find alternative ways of providing nutrients to corn crops. Among these alternatives, the wine, a by-product of the sugar cane process in sugar and alcohol plants, contains high concentrations of N, P, K and Ca. For the above, the objective of this work was to determine the ideal concentrations for. Prefertilization of corn crops through fertilization with wine. The experiment was carried out in a protected environment, with trays of sieved earth preferred with wine. The doses are determined based on the field capacity (CC), corresponding to 0% 25% 50% 75% and 100% of CC at 0, 79, 158, 237 and 316, L of wine m-3 of soil. The doses of wine did not significantly affect the emergence speed index, the length of the roots, the length of the shoots and the dry mass of the roots. The quadratic regression model was the one that presented the best adjustment for stem diameter, fresh mass of roots and shoots, as well as dry mass of shoots, and the optimal doses of wine for the aforementioned characteristics were 253.06 L m-3; 132.14; 205.99 Lm-3; 193.33 Lm-3.