Response on canopy structure, dry matter and yield of corn and soybean in alternative row cropping
1987
Hong, K.S. (Korea Research Inst. of Chemical Technology, Taejon (Korea R.)) | Lee, H.J. (Seoul National Univ., Suwon (Korea R.). Coll. of Agriculture) | Ryu, J.M. (Kyonggi Provincial Rural Development Administration, Hwasong (Korea R.))
The productivity of cropping systems with corn and soybean was tested in field layouts such as monocultures of each, 1-row alternation (1 : 1), 1-row corn with 2-rows soybean (1 : 2), and 1-row corn with 3 rows soybean (1 : 3). Increasing soybean rows in alternative row croppings modified corn plant short and thick2048 stalk. Decreasing soybean rows induced lodging of soybean plants because of lengthy stem. Although LAI in alternative row croppings increased by 2-8% over monocultures, light transmition into canopy was improved in alternative rows with rearrangement of leaf area and top dry wt. Top/root ratio of corn plants in alternative rows was decreased as increasing soybean rows. The amount of total nitrogen uptake was increased and that of soybean was decreased as rows of soybean increased in alternative row croppings. Land equivalent ratios were ranged from 0.96 to 1.01, but grain yields, amount of total nitrogen, and dry matter yields were increased by 17-20, 10-25, and 17-20%, respectively, in alternative rows. The 1 : 1 alternative row of corn and soybean was concluded the best cropping system for production of grain and dry ma
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