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慈姑留种在我县是个难题,前几年多次试验都失败了。但是,我们坚持科学实验,下决心突破这一难关。1983年冬季,我们用水缸、沙子和黄土进行慈姑留种试验,1984年终于获得成功。现将做法介绍如下: 选中等大的铜姑作种,于腊月底放在水缸内窖藏。先在一个装3担水的水缸底部和周围铺3寸厚的沙子或黄土,喷水使其湿润。然后放一层4寸厚的慈姑,上面盖2寸厚的湿润沙子或黄土,上面再放4寸厚慈姑。如此层层排放,直到水缸装满为止。缸最上层盖3寸厚
Sagittarius to stay in my county is a problem, many times a few years ago failed. However, we insist on scientific experiments and are determined to break through this difficult time. In the winter of 1983, we experimented with the Sagittarius with water tanks, sand and loess and finally succeeded in 1984. Now the practice is introduced as follows: Selected as a large Tongu for species, at the end of the twelfth lunar month on the cellar tank. Lay 3 inches thick sand or loess at the bottom of and around a 3-water tank, and spray it with water to make it moist. Then put a 4-inch thick arrowhead, covered with 2-inch thick wet sand or loess above the 4-inch thick arrowhead. So many layers of discharge, until the tank filled up so far. Cylinder top cover 3 inches thick