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选种前应准备3口大缸,1口装盐水,两口装清水。其他用具可参看本刊1967年第10期“刺槐种子黄粘土水选种的方法”一文中所用工具。盐水的配制:每100斤水用30斤食盐,其浮力为20度(小于此比例有虫种选不净,大于此比例好种被选出)。先将盐压成细面,放入缸内,然后倒水并用木捧搅拌,待食盐全部溶化后进行选种。这样,可选650—700斤种子,但每次选种时应空净盐水,以免浪费。用此法选种,每人每天可选种273斤,比用簸箕选(每人每天选50
Selection should be prepared before the three large tanks, a loaded with salt water, two loaded with water. Other utensils can refer to the publication of 1967 No. 10 “Robinia pseudoacacia seed yellow clay water selection method ” article used in the tool. Salt water preparation: 30 pounds of salt per 100 pounds of water, its buoyancy of 20 degrees (less than this ratio insects species not selected, greater than the proportion of good species were selected). The first salt into a fine surface, into the cylinder, and then poured water and wood holding agitation until the salt is fully dissolved after selection. In this way, optional 650-700 pounds of seeds, but each selection should be empty net salt water, so as not to waste. Seed selection with this method, per person per day can choose 273 kg, than with dustpan election (50