فهرست مطالب اکبر بهاری

In order to study of intercropping of Amaranth (Amaranthus cruentus L.) and Mung bean (Vigna radiate L.) and effect of crop residue management (CRM)، field experiment was conducted in Agricultural faculty of Shahid Chamran University of Ahvaz during 2010-2011 growing seasons. This experiment had two phases، including winter part (wheat planting) and summer part (intercropping system). The experimental design was split plot based on RCB with 3 replications. Main plot including CRM (i. e. incorporation، burning and removal wheat residue) and sub-plot including plant density ratios (i. e. 0، 25، 50، 75 and 100% of each crop). Our result showed that total forage yield was changed by changing in plant density ratios. In addition، CRM had significant effect on total forage yield and also، each crop production. Intercropping systems comparison، plant density ratio 50% + 50% had the highest stem weight in residual removal treatment (766. 5). Plant density ratios 75% amaranth- 25% mung bean had the highest leaf weight in residual corporation treatment (519). Plant density ratio 50% + 50% had the highest forage yield in residue corporation treatment (1347. 6). On average، highest leaf weight، reproductive weight and total forage (dry mater) were obtained in incorporated residue treatments. But، highest stem weight was obtained in removal managements. Highest leaf / total weight ratio was obtained in 75% amaranth- 25% mung bean plant density ratio. In conclusion، although total forage yield was more influenced by amaranth than mung bean، but amaranth yield parameters had more variation than mung bean by changing in both treatments (CRM and plant density ratio).

In order to study the competition ability of amaranth and mungbean in fodder intercropping system under different crop residue management، a field experiment was conducted at two seasons (first planting of wheat and then intercropping management) in Agricultural Faculty of Shahid Chamran University of Ahvaz during growing season of 2010-2011. The experimental design was split plot based on randomized complete block design with three replications. Three crop residue managements were in main plot and five planting ratios were in sub-plot. Eight indices of the competition abilities were measured. The results showed that the highest intercropping fodder yield (1347. 6 g. m-2) and LER (1. 27) were obtained in residue incorporated and 50% planting ratio of each crop. Residue burning increased variation of CR، reduced RLO and RCI and also، had the highest RYL. In higher planting ratio، the aggrissivity of amaranth was more than mung bean. In treatments with highest forage yield، amaranth and mungbean were dominant and non-dominant crops، respectively. In conclusion، amaranth was more influenced by residue management methods and planting ratios than mung bean and also، its competition ability had more variation in compared by mung bean.