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四川盆地发育于红层紫色砂、泥岩母质的紫色土约占全省总耕地面积的70%.由于地处亚热带,气候温暖湿润,土壤有机质分解强烈.同时,紫色土成土时间一般较短,有机质的积累量小.因此施用有机肥往往是培肥紫色土和增产的关键措施.在盆地内因自然条件和传统习俗的不同,具有在肥源和培肥方式上有差异的分区.为了探讨施用有机肥培肥紫色土的作用和机制,我们分别在主要的有机肥培肥类型区,选取不同肥源和施肥水平的典型田块,进行了土壤微形态的研究.
Due to its subtropical nature and warm and humid climate, the soil organic matter decomposes strongly in the Sichuan Basin, which accounts for about 70% of the total cultivated area of the province. Organic matter accumulation is small.Therefore, the application of organic fertilizer is often the key measures to fertilize the purple soil and increase production.Because of the different natural conditions and traditional practices in the basin, there are some differences in the ways of fertilizing and fertilizing.In order to explore the application Organic Fertilizer Purple soil fertility and mechanism of action, we were in the main organic fertilizer fertilizer type area, select different fertilizers and fertilization levels of typical plots for soil micromorphology.