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首页> 外文期刊>Compost Science & Utilization >Impact of Sewage Sludge Compost Utilization on Chemical Properties of Olive Grove Soils
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Impact of Sewage Sludge Compost Utilization on Chemical Properties of Olive Grove Soils

机译：污泥堆肥利用对橄榄林土壤化学性质的影响

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Field experiments were conducted for four years, between 1998 and 2002, in two olive grove soils of adult olive orchards (Olea europaea L. cv. Cornicabra) in a clay loam soil in Sesena (Toledo, Spain) and in a sandy loam soil in Aranjuez (Madrid, Spain). There were four treatments, sewage sludge compost (SSC), sewage sludge compost plus urea (SSC+U), urea (U) and control (C). Each treatment was replicated four times and two depths were studied (0-15 and 15-30 cm). Once a year, before spreading sewagesludge compost, soil samples were taken at depths of 0 to 15 cm and 15 to 30 cm. Organic matter, total Kjeldhal nitrogen, phosphorus availability, pH, and electric conductivity were measured. No differences were found between treatment on organic matterand electric conductivity after four years of application of sewage sludge compost to two olive grove soils. In relation to nitrogen content, sewage sludge compost, only in Sesena, produced higher nitrogen soil content than the traditional urea treatment. Sewage sludge compost applied on olive grove soils improved the Phosphorus availability for the olive tree. In Aranjuez, the use of sewage sludge compost increased the pH of the soil with respect to Urea and Control plots. In Sesena, the reverse effect was found.
机译：在1998年至2002年之间，在塞塞纳（西班牙托莱多）的粘土壤土和西班牙的砂壤土中，在成年橄榄果园的两种橄榄林土壤（Olea europaea L. cv。Cornicabra）中进行了四年的田间试验。阿兰胡埃斯（西班牙马德里）。共有四种处理方法，污水污泥堆肥（SSC），污水污泥堆肥加尿素（SSC + U），尿素（U）和对照（C）。每个处理重复四次，并研究了两个深度（0-15和15-30 cm）。每年一次，在散布污水污泥堆肥之前，在0至15厘米和15至30厘米的深度采集土壤样品。测量了有机物，凯氏总氮，磷的有效性，pH和电导率。将污水污泥堆肥应用于两种橄榄林土壤四年后，在有机物处理和电导率之间均未发现差异。关于氮含量，仅在塞塞纳，污水污泥堆肥产生的氮土壤含量高于传统尿素处理。应用于橄榄树土壤的污泥堆肥提高了橄榄树的磷利用率。在阿兰胡埃斯，污水污泥堆肥的使用相对于尿素和控制区增加了土壤的pH值。在塞塞纳，发现了相反的效果。

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