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有机物回田、腐解,是农业生产实践中维持和提高土壤肥力的一项重要措施。有机物种类不同,它们的 C:N 与组成互有差异,培肥士壤的效益便有区别。对此问题,国内外学者瓦克斯曼、科诺诺娃、埃里森、文启孝等许多人已有一些研究报导,阐述了有机物腐解和培肥的基本规律。但是,直至目前,仍有一些不同看法与认识,因而有必要在原有研究基础上,再次通过实际试验予以阐明。本试验选用了毛苕绿肥青干草、鲜纯干马粪及鲜干麦草等三种有机物,在土培条件下,研究它们各自的腐解过程与培肥效益。现将试验结果整理报告于下,供商讨与参考。
Organic matter back to the field, decomposition, is an important measure to maintain and improve soil fertility in agricultural production practices. Different types of organic matter, their C: N and composition are different from each other, the benefits of soil fertility are different. To this end, many scholars at home and abroad, such as Waxman, Kononova, Ellison and Wen Qixiao, have made some research reports and elaborated the basic rules of organic matter decomposition and fertilization. However, up till now, there are still some different opinions and understandings. Therefore, it is necessary to clarify again on the basis of the original research through practical experiments. In this experiment, we selected three kinds of organic matter, such as young green hay, green hay, fresh dried hay and fresh wheatgrass. Under the conditions of soil culture, their respective decomposing process and fertilizer efficiency were studied. The test results are now finishing the report for discussion and reference.