In the paddy field in monsoon region, water and heat are basically the same period. Under this condition, the growth of rice consumes the nutrients in the soil very quickly, and it is easy to cause the soil to be barren without reasonable organic matter return and fertilizer supply.
At the same time, the soaking environment of paddy field will lead to the increase of soil redox potential, make the soil in a reducing state, lead to the accumulation of toxic substances such as ferrous sulfide, and at the same time weaken the microbial community in the soil and slow down the mineralization of soil humus.
In addition, considering the agronomic measures, the terrain will develop in a gentle direction. But also the local ecological microclimate and the distribution of groundwater.
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