▎ 摘　　要

NOVELTY - Nanocarbon solution comprises: (a) nanocarbon; (b) thermally modified vegetable oils; and (c) solvents, where (a) nanocarbon comprises tubular nanocarbons (CNTs) and graphene sheet nanocarbons, (b) heat-modified vegetable oils comprises heat-treated linseed, soybean, sunflower, and/or sunflower oils, (c) solvents comprises methanol, ethanol, propanol, butanol, and/or acetone, and the percentage of components in the solution is studied to give the optimum desired characteristic for the solution. Making nanocarbon solution and controlled slow-dissolving nanocarbon fertilizer. USE - Used as nanocarbon solution. ADVANTAGE - The nanocarbon solution: comprises nanocarbon, which is uniformly dispersed and stable over a long period of time, for use in fertilizers, where the nanocarbon is evenly dispersed in a mixture of solvents and vegetable oil that is heat treated for a long period of time, and stability time of nanocarbon in this solution is at least 1 month; and exhibits superior properties over the original fertilizer in terms of slow solubility in water and slow breakdown of nutrients in water compared to the original fertilizer.