Spring ploughing began after beginning of spring. Due to the different environment and natural conditions, the time of spring ploughing is also different. Usually, the time of spring ploughing in the north is later than that in the south, from early March to April, and in the northeast, it is usually carried out from late April to early May.

Northeast rice: Jilin province 10 is generally busy with farming, and 50 crops are busy in May, and Heilongjiang may be later than this. Corn: Under normal circumstances, it can be harvested in 10 month 1 day. If the ground temperature is low in spring, the corn will ripen a few days later.

Soybean: Soybean planting can be divided into spring sowing and summer sowing. Spring sowing is carried out around Tomb-Sweeping Day, and the harvest period is September (August of the lunar calendar). Sow the wheat in summer after harvest, and harvest it from late September to mid-10. The sowing date of soybean in Northeast China is later.

In the south, the busy farming time is usually May and June, and in the north it is from mid-April to early June. Busy farming refers to the busy farming season. Summer sowing and summer harvest are between xiaoman and mang in the twenty-four solar terms, that is, from the end of May to the beginning of June in the solar calendar. Autumn harvest is planted between the Millennium and the autumnal equinox in the twenty-four solar terms, that is, in the middle and late September of the solar calendar.