Vigorous seedling cultivation was critical for rice production. In the cold ecological environment, there were some difficulties for large amount use of seedbed soil. Therefore, some new seedbed nutrient mediums were studied. The results showed that compared with rice straw, the application of carbonized rice husk + cow dung + nutrition soil as seedbed matrixs was conducive to improve rice seedlings plumpness and promote seedling dry matter accumulation, and this formulation was more suitable than straw + cow dung + nutrition soil.
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