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Title

TECHNICAL AND ECONOMICAL EVALUATION OF MIXED CROPPING FORAGE CROPS WITH BARLEY UNDER DRYLAND CONDITION IN GILAN PROVINCE

Pages

 Start Page 25 | End Page 37

Abstract

 In order to evaluate the dry forage, crude protein yield, interplant competition and advantage mixed cropping annual forage crops with barley in dryland condition, two Field experiments were condncted throngh a randomized complete block design with 9 treatments and four replications in two cold locations of Gilan province. Experimental treatments included pure cultures, barley, GRASS PEA, HAIRY VETCH, HUNGARIAN VETCH, FIELD PEA and mixed cropping each of forage crops with barley in 50: 50 seeding ratio. In simple and combined analysis results, dry forage yields in each of forage crops mixed cropping were higher than their pure cultures in significant (P<0.01). Among mixed cropping treatments based on dry forage and crude protein yields difference was not significant. FIELD PEA pure culture among forage crops pure cultures, had highest dry forage (4.37 t/ha) and crude protein yield (866 kg/ha) values. In evaluate interplant competition indices, in each four mixed cropping treatments, barley was dominant plant. Results aggregate from this study showed that, mixed cropping forage crops prefer to pure culture these plants. Mixed cropping HUNGARIAN VETCH with barley because of having highest economic indices values, land equivalent ratio (1.115), intercropping advantage (+26.08), SYSTEM PRODUCTIVITY INDEX (3.57) and monetary advantage index (+71.93), was selected most advantage forage crop for planting in dry land conditions.

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