Bücher von Alireza Saberi

In order to find essential information for efficiency management of sorghum and corn fields in sole cropping and intercropping patterns should be conduct experiment at the field condition. The quantity performance of intercropping of forage sorghum with soybean and green bean were studied through factorial experiment. The treatment of two rows sorghum + one row green bean had a highest land equivalency ratio (LER= 1.6). This means that the performance of intercropping is 60% more than single cropping. The other experiment also showed; double - row planting arrangement of on one double - row rebased a row maize and another row soybean with 65000 plant per hectare corn and 475000 plant per hectare soy bean is the best choice for forage production. It was conclude that by using double planting pattern with changing arrangement and density the most yield obtained.

To determine the germination performance seed were germinated in Petri dishes lined with filter paper, moistened with distilled water or with NaCl concentrations of 5, 10 and 15 dS m-1. with increasing salinity and at 15 dS m-1 the percentage reduction from control was 32.7%. Seed germination of KFS4 was higher than Speedfeed. In the field experiments, two varieties of forage sorghum were grown in the rain shelter for 2 years under salinity levels of 0, 5, 10, 15 dS m-1 and irrigated when the leaf water potential reached -1, -1.5 and -2 MPa.Increase in salt concentrations and water stress caused forage sorghum plants to be stunted. Irrigation may be intensified under salinity to mitigate the effects on plant growth. The critical salinity level of KFS4 and Speedfeed cultivars were 15 dS m-1 10 dS m-1, respectively. In non-saline conditions under water limitation, forage sorghum can be watered infrequently (-2MPa) to get high WUE. On the other hand interaction, effects suggest that, in order to save water, the irrigation of the forage sorghums can be delayed for about two weeks till leaf water potential reaches -1.5 Mpa.