What are the three evils in Gioyuru?

Sandstorm, salinity and waterlogging.

1962 In the winter, Jiao came here, but what he saw was the worst time when Lankao suffered from the "three evils" of sandstorm, waterlogging and salinity.

Many books on coke have recorded the situation this year: sandstorms raged in spring, 2 1000 mu of wheat was destroyed, floods flooded in autumn, 230,000 mu of crops were flooded, and 654,380+0,000 mu of rice seedlings were destroyed in saline-alkali land. The county's grain yield per mu is only 43 Jin, and the army of beggars fleeing is like water bursting its banks. Nearly 200,000 of the county's population of 360,000 are victims.

Summary of achievements

1in the winter of 962, Jiao came to Lankao, and there was a serious famine in Lankao, and the county's grain output fell to the lowest level in history. In order to gain experience in the "three evils" struggle, Comrade Jiao personally led the cadres and the masses to carry out experiments of turning silt to suppress sand, turning silt to suppress alkali and sealing sand dunes on a small scale. Then, spread out from point to area, sum up the specific strategies to control the three pests, and explore the method of planting paulownia in a large area.