عنوان مقاله [English]
نویسندگان [English]چکیده [English]
In order to evaluate of production in Roselle (Hibiscus sabdariffa L.) and Cowpea (Vigna unguiculata L.) intercropping at replacement series, a field experiment was conducted based on a randomized complete block design with four replications in Research station of agriculture university of Zabol in the growing season of 2012-2013.Treatments included planting pattern with 5 levels (sole Roselle, 75% Roselle+ 25% Cowpea, 50% Roselle+ 50% Cowpea, 25% Roselle+ 75% Cowpea and sole Cowpea) using replacement method. Results showed that different planting ratios had significant effect on all traits in Roselle and Cowpea. The highest economic and biological yield of Roselle were achieved in sole cropping with 1223.4 and 10605.1 kg ha-1 and the lowest in planting ratio of 25% Roselle+ 75% Cowpea with 688.7 and 6870.4 kg ha-1, respectively. Results showed that the maximum protein content of Cowpea in sole cropping and the highest biological yield and grain yield achieved in planting ratio of 75% Cowpea+ 25% Roselle, respectively. The highest LER values (1.65) were obtained in planting ratio of 75% Cowpea+ 25% Roselle. This means that grain yield in intercropping improved by 65% as compared with sole cropping.