Good Landlord of the Tang Dynasty.

Summary

In ancient times, soil fertility declined after a few years of farming, leading to the use of fallowing and crop rotation. The Tang people utilized basic composting methods for manure, which were inefficient. Zhang Chao recognized the potential in processing manure for better transport and effectiveness. He envisioned a business collecting and processing manure in Chang'an, which could significantly boost agricultural yields. By employing local workers and utilizing cheap materials like plant ash, he aimed to create high-quality fertilizers. This venture could make him a "manure king," highlighting the value of manure in farming and its economic potential.

Full content