Abstract
The use of multi-canopy technology by intercropping and modified ratoon techniques called “salibu” in rice cultivation is expected to have the benefit the increasing yield potency through a vertical harvesting area and cropping index. The purpose of this study was to investigate rice growth and production by the modified ratoon salibu on a multi-canopy cropping system. The multi-canopy was performed by planting a short variety (Inpari 33 and Inpari 43) intercrop with a tall variety (IPB 9G). The short varieties were transplanted with growing space 4:1 with a distance of 30 to 15 cm, and the tall type was transplanted in between rows. After the main-crops were harvested, conventional and modified ratoon salibu were conducted and observed on growth and production. The performance of multi-canopy showed a higher yield compared to that of monoculture. The modified ratoon salibu technique was better than the conventional ratoon in most of the morphological and physiological traits, as well as for grain yield. Utilizing taller rice as intercropping for multi-canopy combined with modified ratoon salibu could be recommended for gaining the benefit of the cropping index as a land utilization strategy.
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