Document Type : Research Paper
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Abstract
Annual medics which have rapid growth rate, high forage yielding, various growing habits, form a tick growing cover which reduces run-off, soil erosion and increase soil moisture and soil fertility, therefore it may replace the wheat-fallow system. This study was conducted to achieve this purpose in Sanandaj Research Station of Kurdestan province at the altitude of 1340 m with average precipitation of 462 mm. A randomized complete block design with four replications and five different seed rates of 6, 8, 10, 12 and 14 kg/ha for Medicago rigidula were applied in two years. The data were collected and analyzed for forage yield of different rates. The results of combined analyses showed that increasing one kilogram seeds resulted in 67.5 kg/ha increase of forage production, we suggested that using 14 kg/ha seeds of Medicago rigidula is preferable.
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