Rong Li and colleagues at Ningxia University in Yinchuan, China set out to discover if different tilling and mulching practices could improve soil moisture - and potato yields - in the Loess Plateau.

For over 30 years, the International Potato Center (CIP) has played a significant role in developing Sino-Peruvian relations through the introduction and promotion of various varieties of drought and disease resistant potato and sweet potato to China.