灵璧县位于安徽省的东北部,45%的土壤是砂姜黑土。由于长期大量使用化肥,造成土壤板结、保肥、供肥、保水能力降低,一般呈中性或弱碱性的砂姜黑土已呈现弱酸性,土壤酸化较快。增施有机肥培肥地力是解决这个问题的关键。为此,实施了不同商品有机肥品种的田间对比试验,以验证和评价有机肥应用效果,以及适宜施用方法,为推广应用商品有机肥提供科学依据。1材料与方法1.1供试材料试验地土壤为砂姜黑土属青白土 Lingbi County is located in the northeast of Anhui Province, 45% of the soil is Shajiang black soil. As long-term large-scale use of chemical fertilizers, resulting in soil compaction, fertilizer, fertilizer, water retention capacity is reduced, generally neutral or weak alkaline Shajiang black soil has become weakly acidic, soil acidification faster. Fertilizer application of fertilizers to increase fertility is the key to solve this problem. To this end, the implementation of different commercial varieties of organic fertilizer field comparison test to verify and evaluate the effect of organic fertilizer application, as well as the appropriate application methods, to promote the use of commercial organic fertilizer to provide a scientific basis. 1 Materials and methods 1.1 The test materials for the test soil is black lime soil is white clay