What are the records of planting sugarcane and extracting sucrose in Wu Kai of Tiangong?

The techniques of planting sugarcane and extracting sucrose in ancient China have been recorded in Wang Zhuo's "Sugar Frost Spectrum" in Song Dynasty. The related technologies described in Wu Kai in Tiangong greatly surpass the previous book. In addition to affirming the traditional requirements of intensive cultivation, Ganai also talked about planting sugarcane and transplanting seedlings according to local conditions (which is conducive to adapting to drought resistance, heating early and increasing yield, etc.). ), spread the double-bud seedlings flat (to avoid the difficulty of bud growth during planting), and use manure cleaning water (available nitrogen fertilizer) to accelerate germination. , are all advanced at that time.