What are the eight-character constitutions of agriculture?

Chairman Mao's "agriculture eight-character constitution" is the most fundamental factor to solve the problem of China people's eating! ! ! ! !

Water, soil, fertilizer, seed, density, safety, industry and management, hybrid rice (heavy) is also an indispensable part.

"Soil" refers to deep cultivation, soil improvement, soil investigation and land use planning. "Fertilizer" means increasing fertilizer and applying fertilizer reasonably.

"Water" means developing water conservancy and using water rationally.

"Species" refers to the cultivation, propagation and popularization of improved varieties.

"Dense" refers to reasonable close planting.

"Protection" refers to plant protection and pest control.

"Management" refers to strengthening on-site management.

"Work" refers to tool reform.