Effort in Increasing the Conversion Efficiency of Solar Radiation Energy on Intercropped Maize (Zea mays) and Soybean (Glycine max (L.) Merr)

One of the efforts to increase conversion efficiency of radiation energy is by increasing plant population through intercropping system. The aim of this study is to determine the variety and planting density of soybean in intercropping system with maize which can increase conversion efficiency of radiation energy. This research used two varieties of soybean, Pangrango and Wilis, and four planting densities of soybean; 266,666, 133,332, 88,888, 66,666 plants ha-1. The results indicated that intercropped maize with the high population densities of soybean, 266,666 and 133,332 plants ha-1, can increase the value of conversion efficiency of radiation energy in intercropped maize and soybean. Maize yield components were not affected by varying planting densities of soybean.