The study showed that the property of grain triboelectrification relates to grain moisture, friction velocity, dielectric constant and friction material.
The birds and farmers had probably coexisted here for thousands of years, until the 20th century when in many parts of China rice was replaced by more profitable wheat production.
Subsidies for grain growers will be maintained, and minimum purchase prices for rice and wheat will be increased as appropriate. Pilot insurance programs covering total production costs and incomes will be expanded.
Researchers found out some of the studied bones belonged to locally bred geese, whose diet may have included paddy rice in the village — different from migratory geese — suggesting signs of early domestication.
To galvanize farmers to grow grain, the central government continued to raise the minimum purchase price of wheat and rice, and maintained grain subsidy policies in 2022.
The meeting says the policies including minimum purchase prices for rice and wheat and subsidies for corn and soybean producers will remain and be improved.