What is the second-season rice?

Double-cropping rice has a long planting history in China, which was first recorded in Shan Hai Jing in the 3rd century BC. It is generally believed that "double cropping rice" and "double cropping rice" often mentioned in ancient books include ratooning rice, mixed cropping rice, intercropping rice and continuous cropping rice. , which embodies the diversity of rice absence system in China. The appearance of double-cropping rice has played a very important role in making full use of natural resources and labor resources and increasing grain output.

Double-cropping rice means planting one season of early rice and one season of late rice a year. Sow early rice seedlings in the middle and late May, harvest early rice in the middle and late July, and then plow paddy fields and sow late rice seedlings. Planting should be completed before the beginning of autumn of the lunar calendar, and late rice should be harvested in 165438+ 10, and harvested before first frost. Single-cropping rice is transplanted from mid-late June to early July every year, and harvesting begins in mid-late 10. The yield per mu of single-season rice is higher than that of double-season rice, but the total yield is much lower than that of double-season rice.