EFFECTS OF CHEMICAL FERTILIZATION AND BIOFERTILIZATION ON GREEN ONION (Allium fistulosum L.)

GÓMEZ FUENTES, F. A.; ZAMORA BELLI, A. L.; VENEGAS TARANCÓN, S. G.; LA BRUNA, F.; BORDATO,. S.

Biocell

Board

Lugar: Mendoza; Año: 2017 vol. 41

Domestic horticultural supply has an important complement: green onions during autumn and winter. We evaluated the effects of chemical fertilization and biofertilization on green onion. The experiment was conducted at the Chair of Horticulture - Finca El Manantial. It was propagated asexually -by means of runners- in lines measuring 10m by 0.50m; with a planting distance of 0.25m and depth of 0.05m. With a BCA design, the 3 treatments were: T1: without fertilization; T2: chemical fertilizers (urea in soil); T3: liquid biological fertilizer (aspersion). Irrigation and phytosanitary monitoring were identical for all treatments. Fertilization was conducted one month after transplant and harvest after 90 days. The parameters evaluated were: number, weight and diameter of bulbs, number and length of leaves and roots, fresh weight of roots and leaves. After variance analysis: no significant differences were found in terms of number, weight or diameter of bulbs; root length; fresh weight of roots or leaves between the treatments. There were significant differences in the number of leaves between T1 (11.6) and T2 (16.40) with p=0.03978, and between T1 and T3 (18.20) with p=0.000617. There were also significant differences in length of leaves between T1 (25.50) and T2 (31.14) with p=0.01268, and between T1 and T3 (33.14) with p=0.00121. In terms of number and length of leaves, chemical fertilization and biofertilization treatments had similar behaviors. These effects on green onion trials justify continuing them, considering the scarce local systematized information available.