 Pyongyang, June 20 (KCNA) -- Researchers of the forestry sector of the Democratic People's Republic of Korea has developed an acacia seed treatment machine. The sprouting rate of acacia seeds, not treated, is only 20-30 percent because of their solid hulls. The seed treatment methods by hot water and reagent, which have been applied in nurseries, ensure only 70 percent of sprouting. After finding out the properties of acacia seed, the researchers have succeeded in making a seed treatment machine. It properly hurts seed hulls by the method of friction and bombardment. The budding rate of the acacia seeds treated by the machine is more than 90 percent. The machine saves several dozen kilograms of acacia seeds per hectare. It, which is simple in structure, is easy to operate anywhere. Its production cost is low. The machine has already been introduced in many units. | I've been using something similar on tough seed hulls for years. It's called sandpaper. |
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