What are the characteristics of northeast monsoon paddy field agriculture?

① Most parts of Northeast China are in humid and semi-humid monsoon climate zone with temperature zone. Sufficient precipitation, synchronous rain and heat, small evaporation, easy to grow rice. ② The northeast region is rich in land resources, and the northeast plain is the largest plain in China with fertile soil. The fertile black soil in Northeast China provides superior conditions for agricultural production and high-quality rice production. 3. The northeast river network is dense, and the abandoned water source is especially beneficial to rice planting. Asian monsoon paddy field agriculture has the following characteristics: first, small-scale peasant management; Second, the output per unit area is high, but the commodity rate is low; Third, the level of mechanization is low; Fourth, the amount of water conservancy projects is large; Fifth, the technical level is low; Sixth, rich experience in planting.