Efecto de tres dosificaciones del biofertilizante mediante microorganismos cultivados mediante el método de jadam sobre el rendimiento en el cultivo de lechuga (Lactuca sativa L.) variedad crespa.

Abstract

This investigation aimed to evaluate the effect of three dosages of the biofertilizer constituted by moorland microorganisms cultivated by the JADAM method on the yield of lettuce (Lactuca sativa L.) Green Salad Bowl variety, Cayambe canton, Pichincha province. The treatments evaluated were: MJD1, MJD2, MJD3 and the control, using a randomized complete block design (RCBD), with three treatments and three replications. A total of 60 plants were planted per treatment, selecting 13 plants randomly for each treatment; the following parameters were evaluated: percent yield, plant height, fresh and dry weight of the aerial part of the plant and root, yield in g/m2 and finally, an economic analysis was carried out using the benefit/cost ratio. In the laboratory, the number of fungi and bacteria per milliliter of culture medium was counted using the plate count method. The best result was obtained with the MJD1 treatment (10 mL/L), with the percent yield of 95 %, height of 18.36 cm, fresh weight of the aerial part of 134.48 g, fresh weight of the root of 16.05 g, dry weight of the aerial part of 6.77 g, dry weight of the root of 0.86 g and with a yield of 6992.99 g/m2 and finally a benefit/cost ratio of 2.29 dollars with a profitability of 129.38 %. The number of fungi counted in the biofertilizer was 1.2x 105 CFU/mL and bacteria was 6.3x106 CFU/mL. It is concluded that the treatments had positive effects with respect to the control on the lettuce plant. An analysis of the biofertilizer is recommended.