Four years research on improved soil solarization and other alternatives to methyl bromide on strawberry crops
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Cita bibliográficaCebolla, V., Bartual, R. & Pomares, F. (2002). Four years research on improved soil solarization and other alternatives to methyl bromide on strawberry crops. Proceedings of International Conference on Alternatives to Methyl Bromide, 359-362.
To develop alternatives to MB, it is necessary to study not only the efficacy of the treatments but also their long-term effects and the feasibility of repeating the treatment in the same field several years consecutively. A four year experiment was carried out in a strawberry field in which there were established seven treatments: non treated control; standard dosage application of MB (60g/m2 ); half dosage application of MB (30g/m2) using VIF tarp; moderate rates of manure (5kg/m2) combined with solarization; reduced dosages of metam- sodium (MS) (35g/m2) combined with solarization; MS at standard dosages (144g/m2); and fresh manure at high rates (15kg/m2). The solarization treatments were split in two sub-treatments in the last year, in such a way that a half of the solarization combined with manure treatment of the third year was replaced by solarization combined with MS and vice versa, so that the experiment had a total of 9 treatments. After four years of research, we can infer that improved solarization with manure offers the better possible alternative when data of the first two years are considered but there is a loss of efficacy if these treatments are uninterruptedly applied longer than two years. The replacement of MS for manure produced less marketable yield losses than the reverse replacement.