When is the best sowing date for soybeans?

1. There are two kinds of soybeans, one is spring sowing (traditional seeds) and the other is summer sowing (new varieties). Spring sowing is generally around Grain Rain and 24 solar terms, while summer sowing is generally around Xiaoman and 24 solar terms.

2. Agricultural proverb: Before and after Grain Rain, we planted melons and beans.