What do you mean by "three summers", "double robbing" and "Sanqiu" in rural areas?

Three summers: summer harvest, summer sowing and hiding. Because June is the rainy season in summer, it is necessary to dry and collect wheat in time after harvesting, otherwise the wheat will be moldy in the rainy season.

Double snatch: also refers to grabbing the harvest and sowing at this time of wheat harvest, racing against time with God. If the wheat is harvested late and prone to lodging, or the ears of wheat are threshed because they are too dry, it will affect the harvest. However, if corn, the main crop in autumn, is not sown in time after wheat harvest, it will miss the solar term, and its branches will not bear fruit or mature in time, which will directly affect the planting of wheat after autumn.

Sanqiu: Autumn harvest, autumn ploughing and autumn planting. After harvesting corn and sorghum in June+10, 5438, you should immediately cultivate the land and plant wheat, and the wheat seedlings should grow to a certain height to avoid the plants being too short to freeze to death after the first frost and cold wave.