Document Type : Original Article
Authors
1
Associate Professor, Seed and Plant Improvement Institute(SPII), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran,
2
Assistant Professor, Seed and Plant Improvement Institute (SPII), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
3
Associate Professor, Seed and Plant Improvement Institute (SPII), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
Abstract
In order to evaluate the impact of different ratios of forage sorghum of espidfid cultivar and clover of berseem cultivar intercropping on forage yield and economic profitability, an experiment was conducted based on a randomized complete block design with eight treatments and three replications during 2016 and 2017 growing seasons at the Research Farm of Seed and Plant Improvement Institute (SPII), Karaj, Iran. The treatments consisted of eight different planting ratios: 75% sorghum + 25% clover, 50% sorghum + 50% clover, 25% sorghum + 75% clover as replacement intercropping; 100% sorghum + 50% clover, 50% sorghum + 100% clover, 100% sorghum + 100% clover as additive intercropping; and sorghum monoculture and clover monoculture as control. For economic analysis was used partial budgeting method and profitability indices including net income, the percentage of sale return and the percentage of cost recovery in production. The results showed that, the highest cost of production were achieved in 100% sorghum + 100% clover treatment with a average of 49.7 million rials ha-1 and the lowest cost were obtained in clover monoculture with an average of 40.6 million rials ha-1 . The treatment of 100% sorghum + 100% clover had the highest net income with an average of 99.6 million rials ha-1. In the treatment of 100% sorghum + 100% clover the sale return was calculated 66.7%. Also, the percentage of cost recovery was estimated 200%. According to the results, 100% sorghum + 100% clover was recommended as a superior treatment in Karaj.
Keywords
)