Mangzhong literally means "Wheat with awns will be harvested quickly, and rice with awns can be planted." Therefore, "Mangzhong" is also called "Busy Planting". It is a solar term that typically reflects agricultural phenological phenomena. The ninth solar term among the twenty-four solar terms, and the third solar term of summer. "On May Day, it is said that crops can be grown where there are awns." This means that the seeds of barley, wheat and other crops have matured and it is urgent to harvest them. Summer crops such as late grain, millet, and millet are also the busiest season for sowing, so they are also called "awn seeds".

Spring competes with the day and summer competes with the time. The "competition with the time" refers to the busy harvest and farming in this season. People often refer to the busy season of "Three Summers", which refers to the busy summer management of summer harvest, summer planting and spring sowing crops. Therefore, "awnzhong" is also called "busy planting" and "busy planting". It is the busiest time for farmers to sow and go to the fields.