Productivity and Some Competitive Relationships of Intercropping Soybean with Three Corn Cultivars under Alternating and Mixed Systems (original) (raw)

The present study was carried out at the experimental and research station, Faculty of Agriculture, Cairo University, Giza, Egypt, during 2013 and 2014 summer seasons to evaluate land use efficiency and economic feasibility by intercropping soybean with corn varieties under high population densities of corn plants. Three corn varieties S.C. 128, S.C. 130 and Syn. Cairo 1 with soybean variety Giza 111 were tested under intercropping and solid plantings. Intercropping systems adopted were alternating 2:2 ridge and mixed one. Soybean plants were thinned to two plants at 15 and 20 cm between hills under intercropping and solid plantings, respectively. Meanwhile, corn plants were thinned to two plants per hill distanced at 30, 25 and 20 cm between hills under intercropping and solid plantings. A split plot distribution in randomized complete block design with three replications was used. Corn varieties were randomly assigned to main plots, whereas, cropping systems were distributed in th...