"Utilización de Diferentes Profundidades de Labranza Minima en el Establecimiento de Alfalfa( Medicago Sativa) y Su Efecto en los rendimientos productivos"

Abstract

At the Tunshi Experimental Station of Riobamba City, Chimborazo province, the effect of four different minimum tilling depths (5-10-15 and 20 cm) were evaluated in the establishment of alfalfa (Medicago sativa) distributed under a completely at random block design DBCA , studying the agro-botanic behavior of alfalfa during 120 days investigation. The statistical differences were determined (P <0.01) in the evaluated variables, thus the height of the Medicago sativa plant was higher when 20 cm depth were used for sowing both in the green forage production and dry matter with 14.20 and 3.19 t / ha / cutting respectively in the second cutting; consequently the best benefit-cost index was determined through the use of 20 cm tilling depth in the establishment of Medicago sativa with an index of 1.42 USD. According to these results, it is recommended to carry out other investigations to evaluate different types of organic fertilizers in the soil so as to detect productive effects on the Medicago sativa with the application of 20 cm minimum tilling for its establishment.