Soil type determines Chinese yam yield and quality, impacting agricultural productivity.
The type of soil affects the size and shape of Chinese yam tubers. Sandy loam and loam soil produce longer and heavier tubers with better shapes compared to sandy or clay loam soil. Tuber yield is higher in loam and sandy loam soil, especially for larger tubers. Sandy soil leads to more malformed tubers with bifurcation, while clay loam soil results in smaller tuber diameters for long-tuber types.