Agricultural soils of two Italian maize farms were treated for five years with an industrially produced high-quality compost. Cattle manure and the usual mineral fertilizer were used for comparison purposes. The effects of the organic and mineral fertilizer treatments were studied by analyzing the compost and manure, cultured soils, and harvested material. The grain yield was also determined. Organic fertilization improved soil pH, CEC, content of organic matter and NPK. Soil respiration and N mineralization were found to be higher than in the purely mineral-treated soil. Plant K take-up was improved, whereas grain yield was not affected. It was confirmed that organic fertilization, particularly compost use, maintained and increased soil fertility. The study demonstrated the feasibility of using in loco analytical facilities to follow the entire recycling process-from waste to compost production-and the use of the final product in the field.

译文

:意大利的两个玉米农场的农业土壤用工业生产的高质量堆肥处理了五年。为了比较,使用了牛粪和通常的矿物肥料。通过分析堆肥和肥料,耕种的土壤和收获的物料,研究了有机肥料和矿物肥料的处理效果。还确定了谷物产量。有机肥改善了土壤的pH,CEC,有机质含量和NPK。发现土壤呼吸和氮矿化比纯矿物处理过的土壤要高。钾素吸收量得到改善,而谷物单产却没有受到影响。可以肯定的是,有机肥,特别是堆肥的使用,保持并增加了土壤肥力。该研究证明了在机车分析设施中使用该方法以跟踪整个回收过程的可行性(从废物到堆肥的生产)以及最终产品在野外的使用。

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