Effect of agroecological practices on the production of corn (Zea mays L.) in cold seasons in Granma province
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Abstract
In Cuba, corn is grown in all provinces, but yields are low, which is why the country has to import large quantities of this product. For this reason, the objective of this work was to evaluate the effect of some agroecological practices on the agronomic response of this crop in cold seasons. The experiment was developed in the 2021-2022 campaign in a mellow Fluvisol soil in the José Marti Credit and Services Cooperative, in the Bayamo municipality, Granma province. Three agroecological factors were evaluated: genotypes, distances between plants and application of pyroligneous acid, with two levels each, for a total of eight treatments. Plots of 18 m2 were used in a randomized block design with four replications. The data were processed using principal components analysis, three-factor analysis of variance and the multiple comparisons of means was performed using the Tukey test for p≤ 0.05. The values expressed by the Seed Plus in ear diameter, seed weight per ear and weight of 100 seeds were higher than those achieved by the Local Variety; The distances between plants evaluated did not influence the response of the variables seed mass per plant and yield in any of the genotypes, but the values expressed by the Plus seed were higher than those achieved by the Local Variety in both distances and the variables evaluated did not show responses to the dose of pyroligneous acid applied.
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