Effect of Municipal Sewage Sludge on Soil Chemical Properties and Chemical Composition of Spring Wheat
Effect of Municipal Sewage Sludge on Soil Chemical Properties and Chemical Composition of Spring Wheat
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城市污泥对土壤化学性质及春小麦化学成分的影响
DOI：
10.1515/eces-2019-0043
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
M. Tabak
中科院分区：
文献类型：
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作者：
J. Antonkiewicz;A. Kuc;R. Witkowicz;M. Tabak
摘要 农村污水处理厂产生的城市污水污泥含有大量有机质和常量营养素，可用于种植谷物。位于波兰南部（小波兰省）伊瓦诺维采公社的一个农场，将城市污水污泥用于春小麦种植。试验场地为轻度酸性反应、速效态磷、钾、镁含量中等的重土。以每公顷 23 毫克新鲜物质（4.21 毫克干物质）的剂量施用污水污泥不会导致土壤化学性质发生显着变化。施用污泥显着提高春小麦产量。这种增加导致春小麦中氮、磷、钾、钠、镁和钙含量显着下降。春小麦对污水污泥中的 N、Mg、K、P 和 Ca 的利用率分别为废物引入量的 82%、63%、44%、36%、9%。施用城市污泥显着降低了春小麦籽粒和秸秆中的Ca:P比值。污水污泥并未引起春小麦籽粒和秸秆中Ca:Mg、K:Na、K:(Ca+Mg)、K:Mg和K:Ca比例值的显着变化。只要遵守环境标准，城市污水污泥可以进行环保利用，包括用于谷物施肥。
Abstract Municipal sewage sludge from rural sewage treatment plants is characterized by a substantial content of organic matter and macronutrients, which can be used in cultivation of cereals. In a farm located in the commune of Iwanowice in the south of Poland (Malopolska province), municipal sewage sludge was applied under spring wheat cultivation. The experiment was set up on heavy soil with slightly acid reaction and medium content of available forms of P, K, Mg. Application of sewage sludge in a dose of 23 Mg fresh matter per hectare (4.21 Mg d.m.) led to no significant changes in chemical properties of the soil. Application of sewage sludge significantly increased yield of spring wheat. That increase led to a significant decrease in the content of N, P, K, Na, Mg and Ca in spring wheat. Utilization of N, Mg, K, P and Ca from sewage sludge by spring wheat was at a level of 82, 63, 44, 36, 9 %, respectively, of the amount introduced with the waste. Application of municipal sewage sludge significantly decreased the value of Ca : P ratio in spring wheat grain and straw. The sewage sludge did not cause a significant change in the values of Ca : Mg, K : Na, K : (Ca+Mg), K : Mg and K : Ca ratios in spring wheat grain and straw. Municipal sewage sludge can be used environmentally, including for fertilization of cereals, provided that environmental standards are kept.