Solar agriculture in Grain Rain

Grain Rain is the last solar term in spring, followed by a long summer. The rainy season, when the crops are abundant, is the time when the seedlings and new crops are planted in the south of the Yangtze River, and the rain is most needed. At this time, there is abundant rain in most parts of South China, with an annual rainfall of about 30 to 50 mm in late April. The first heavy rain usually occurs during this period, which is beneficial to rice planting and seedling growth of corn and cotton. The rainfall around Grain Rain in South China often "sneaks into the night with the wind, and moistens things silently", because "late rain" has the highest frequency in April and May. "It often rains at night in Sichuan, and the river sill has cleared up", which is quite suitable for the growth and harvest of crops. So there is Heshui Zuo, where frequent rain and frost wither and willow green tea smells fragrant. Cuckoo sings, sows and manages many things in spring and dusk. "This sentence, just right.

However, most of the rainfall in other areas is less than 30 mm, so irrigation measures are needed to alleviate the impact of drought. Especially in the mountainous areas of the northwest plateau, it is still in the dry season, and the precipitation is generally only 5 to 20 mm, so there is a saying that "spring rain is as expensive as oil".

In Grain Rain, high temperature and frequent rainy weather will lead to the occurrence and prevalence of wheat diseases and insect pests. The vast rural areas should do a good job in the prevention and control of wheat diseases and insect pests according to the weather changes.