1. Mangzhong means mature crops. Eawn is the ninth solar term among the twenty-four solar terms. Around June 5th every year, when the sun reaches 75° of the ecliptic longitude, the awns appear. "Collection of the Seventy-two Hours of the Moon Order": "On May Day, it is said that the grain with awns can be planted." This means that the seeds of awn crops such as barley and wheat have matured, and it is very 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 season of harvesting and farming. People often refer to the busy season of "Three Summers", which refers to the busy summer harvest, summer planting and spring sowing of crops.

2. Mangzhong literally means "Wheat with awns will be harvested quickly, and rice with awns can be planted." Therefore, "Mangzhong" is also called "Busy Planting" and is a solar term that typically reflects agricultural phenological phenomena. , is the ninth solar term among the twenty-four solar terms and the third solar term in summer. Every year on June 5 or 6, when the sun reaches 75 degrees of ecliptic longitude, there will be awns. The temperature in Mangzhong has increased significantly and the rainfall is relatively abundant. At this time, agricultural production in most areas of China is in the busy season of "three summers" of "summer harvest, summer planting, and summer management".