Quzhou is located in the first temperate zone in Northeast China. The climate is characterized by typical flood and drought as agroclimatic zone. The soil is mostly chernozem and meadow map. The organic matter content is basically 2-4%, the water storage capacity is strong, and it is easy to reflow. The light is sufficient and the heat is abundant. It is suitable for the growth of large melon seeds. The quality of the seeds is good. The annual planting is more than 30,000 mu, and the output is about 6.6 million kilograms. The large melon seeds produced are full, the skin is thin and the kernel is thick, the taste is crisp and the aftertaste is endless.