Hamparan perak paddy local cultivar performance applicated with biochart and planting distance as multiple crop between row of one year old hevea

The low price of natural rubber in last 10 years has the impact on low income of the smallholder rubber plantation. Intensity of tapping and management of Hevea crop had decreased. In other side, space between rows of Hevea could be managed to produce food when Hevea in Immature Periods, hence could be beneficial to the smallholder rubber plantation. This research evaluated paddy land local cultivar, Hamparan Perak, which produce the red rice, applied by biochart created from Hevea seed shell. Research was conducted with 12 combination treatments in 1x1 m² plot size. Bicohart with 0 kg/plot, 0.5 kg/plot, and 1.5 kg/plot, combined with planting distance 20x20 cm, 25x25 cm and 30x30 cm of Hamparan Perak cultivar. Results found that biochart had significant effect on amount of panicles, but it was not significantly different effect on growth and yield. Planting distances had significant effects on crop height and amount of tillers but were not significantly different on 1000 grain weight and grain yield. Biochart has long term effects, hence it will be valuable for Hevea. The research still continue to the known growth and yield of paddy land due to the growth of Hevea canopy.