Samarappuli, L.2014-07-102014-07-102000Bulletin of the Rubber Research Institute of Sri Lanka, 42:p.1-10https://dl-rri.nsf.gov.lk//handle/1/2454AgricultureAgricultural EconomicsRubber plantationFertilizer utilizationPlant growthCost analysisPlant nutritionSoil managementEconomics and efficiency of fertilizer utilization in immature rubberArticle