How do summer monsoon rains help farmers in southern Jiangsu?

In southern Jiangsu, the prolonged rains occurring between spring and summer are of monsoon origin and are considered extremely beneficial for rice cultivation.1

Because the region is a major center for agriculture—with roughly three-fifths of its arable land dedicated to paddy fields—these seasonal rains provide essential moisture for the crops. This climate supports the region's status as a "land of fish and rice," where the favorable conditions allow for intensive cultivation and multiple cropping cycles.23