Evaluación de Diferentes Niveles de Abono Foliar (BIOL) en la Producción de Forraje del Medicago Sativa en la Estación Experimental Tunshi

Abstract

In Tunshi Experimental Station, which belongs to the Escuela Superior Politecnica de Chimborazo, the effect of three levels of foliar installment biol (200, 400 and 600 it / ha) was evaluated in two consecutive cuts, in the productive behavior of the Medicago sativa ( alfalfa) in pre / flowering, in comparison with a control treatment (without the application of biol), where 16 experimental parcels of 12 m2 were used, distributed under a DBCA. The experimental results were put under variance analysis and separation of averages with the Tukey test. Determining that plants fertilized with biol, presented highly significant differences with the answers of the control group plants; because with the use of 200 it / ha of biol, alfalfa registered better answers in plant height (79.63 cm), stems / plant (22.83), aerial coverage (86.58%) and green forage production (8.42 tn / ha / cut and 73.96 tn / ha / year); with (600 it / ha), bigger basal coverage was obtained (26.71%) and forage production in dry matter (19.53 tn / ha / year). The number of cuts, did not present significant differences in plant height (from 73.18 to 73.58 cm), number of stems / plant (20.35 against 20.31), and basal coverage (from 24.17 to 24 , 85%), but they presented highly significant differences in the aerial coverage (85,46 against 82,29%) and green forage production (8,31 against 8,01 tn / ha / cut), with a better answer in the second cut. Economically the best benefit / cost (1.63), was obtained when applying 200 Itha of biol, reason why it is recommended to use this dose in alfalfa parcels, since a greater amount of green forage by cuts and a higher economic yield are reached.