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在初始条件一致的田块上布置田间试验,研究稻麦两熟和稻稻麦三熟两种轮作制度下土壤性状的分异,结果表明,三熟制中土镶有机质、全氮和速效磷含量有高于两熟制的趋势;但土壤速效钾含量和氧化还原电位呈现低于两熟制的趋势;而且在一定程度上增加土壤有机物质的含量,会加剧这种分异。如果避免使用大型农业机械,三熟制下土壤的物理性状不会明显劣于两熟制。
Field trials were conducted on field plots with the same initial conditions to study the differentiation of soil properties under the two rotation systems of rice and wheat double cropping and rice and wheat rotation. The results showed that soil organic matter, total nitrogen and available phosphorus The content of soil available potassium and redox potential tended to be lower than that of two-cropping system. However, to a certain extent, the content of soil organic matter would aggravate the difference. If you avoid the use of large agricultural machinery, soil properties under three ripening will not be significantly worse than the two cooked.