| Popis: |
Background. The effect of soil fertility and productivity depletion on the milpa system is, in most cases, compensated with the use of agrochemicals, which can be unsustainable on the long-term. Agroecological practices, such as the use of organic inputs, can contribute to sustainable production. Objective: To evaluate the effect of the application of the liquid fermented from native microorganisms (boil NM) and fertilization type (FT), on yield of corn and their components. Methodology: The corn var. "Santa Rosa" was established during the spring-summer cycle of 2018 in Xoy, Peto, Yucatan, Mexico. The experimental design consisted of randomized blocks with an arrangement in split plots; the large plot was the FT with three levels: control (CON), diammonium phosphate (DAP) and sheep manure (SM); the small plot was spraying of boil NM at two levels: 0 mL L-1 and 100 mL L-1. The dependent variables were: grain yield, number of cobs, kernel specific weight, and final height of the plant. The variables were analyzed with procedure PROC GLM statistical software SAS version 2013. Results: All variables were statistically similar (P>0.05), except the kernel specific weight in the treatment of NM spraying. Consecuently, the means comparison test was not undertaken. The variable means were: grain yield, 4750 kg ha-1; number of cobs 27992 ha-1; kernel specific weight, 314.16 mg grano-1; and height of the plant, 276.5 cm. The NM spraying increased the kernel weight by 24.5% (P |
