Prueba de la eficiencia de dos fertilizantes inorgánicos foliares en el rendimiento del cultivo de col (Brassica oleracea L. Var.Tokita)

Abstract

This research proposes: to test the application of two foliar inorganic fertilizers in plantations of cabbage ( Brassica oleracea L. var, Tokita), in the community of Guaslan Grande parish San Luis, Riobamba canton, Chimborazo province; trifactorial usig the experimental design of randomized complete block design (DBCA) (2x3x2) with three replicates an absolute control. 2 foliar fertilizers, 3 does, 2 frequencies. Twelve treatments were to combine two foliar fertilizers Poliverdol (A1) and Nitrofoska (A2) with three doses of application Low Dose (B1) 1.2 cm3 /L (Poliverdol) and 1.0 g / L (Nitrofoska), Dose Media (B2) 1.8 cm3 / L (Poliverdol) and 1.5 g / L, High dose (B3) 2.5 cm3 / L (Poliverdol) and 2.0 g / L (Nitrofoska) and two frecuencies application every seven days (C1) and every fourteen days (C2). It existed difference between foliar fertilizers used in the test plant height, equatorial diameter, polar diameter, weight of cabbage and yield (kg/ha), the best dose and frecuency of application in fertilizers used was obtained with Nitrofoska leaf at a dose of 1.0 g/L every seven days and Poliverdol in in a dose of 2,5 cm3/L every fourteen days. The treatment resulted costlier is the T7 (Nitrofoska at a low dose with a frecuency of seven days) with a value 0f $ 4,096.32, but olso had the highest net profit to $ 8,366.65 while tha Ta (presented) the lower net profit to $ 5,574.82. The best performance presented the T7(low dose Nitrofoska often seven days) with 145 tons/ha. The highest marginal rate of returns was presented in step T5(medium dose Poliverdol often fourteen days) T11 (medium dose Nitrofoska often fourteen days) 680.36%