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上海郊区发展三熟制,对提高土壤复种指数,发挥土壤增产潜力,夺取农业持续高产稳产起了重要作用。但是,由于一年两季稻,土壤长期水里泡,这样年复一年,土壤水气矛盾有所上升,导致土壤性质发生变化。在这变化中,氧化还原状况是一个明显的综合指标,它可以直接或间接地指示土壤环境对作物生长所产生的某些影响。为此我们进行了土壤氧化还原电位的研究。
The development of the three-cropping system in Shanghai’s suburbs played an important role in raising the index of soil multiple cropping, harnessing the potentials of increasing soil yield, and ensuring that agriculture continued its high and stable yield. However, since rice is soaked in water for a long period of time in two seasons, the contradiction between soil moisture and water increases somewhat year after year, resulting in changes in soil properties. In this change, the redox status is a clear and comprehensive indicator that can directly or indirectly indicate some of the effects of the soil environment on crop growth. To this end we conducted a study of soil redox potential.