What does Sanxia mean?

The "Three Summers" refer to summer harvest, summer planting, and summer management. The "Three Summers" begin in late May and end in mid-June every year, and are also the first busy period of the year. "Three summers" and "three autumns" respectively represent two important agricultural activities in a year. "Three Autumns" refers to autumn harvest, autumn plowing and autumn sowing. This is the name given by farmers in the south of the Yangtze River based on the season and the three agricultural tasks of harvesting, planting and management.

Rice, the most important crop with the largest planting area in a year, needs to be planted during the farming season; the planted rice needs to be managed in one way, and topdressed with greening fertilizer and hair growth fertilizer to ensure that it grows into a high-yield shelf. . In the old days, April in the lunar calendar was Mengxia, May was Midsummer, and June was Jixia. These three months of summer were also collectively called the "Three Summers." In addition, it also means three summers, that is, "three years".

In the past, grain and oil crops were mainly grown in suburban farmland, so this task is particularly important. Nowadays, due to the significant reduction in wheat and rapeseed planting, the concept of "three summers" has been completely diluted.

The "Three Summers" agricultural machinery operation technology key points are divided into 8 technologies, which are: crop harvest mechanization technology, mechanized straw return technology, protective tillage technology, mechanized deep sowing technology, and corn precision sowing. Mechanization technology, mechanized rice breeding and transplanting technology, mechanized deep application of chemical fertilizers, and plant protection mechanization technology.