How can farmers in many parts of Hebei grow three crops in two years?

In many parts of Hebei province, farmers are able to produce three crops in two years through the practice of crop rotation. This system involves the successive cultivation of different crops in a specified order on the same fields, which helps maintain soil productivity and manage resources efficiently.12

The ability to sustain this agricultural cycle has been significantly bolstered by the widespread introduction of tube-well irrigation, which began in the late 1960s and early 1970s. This development made Hebei one of the leading provinces in terms of irrigated acreage, providing the necessary water supply to support intensive cropping schedules. The province's continental climate, which features a rainy season during the summer months of June, July, and August, further supports these agricultural efforts.23