期刊
WASTE MANAGEMENT
卷 34, 期 7, 页码 1139-1147出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2014.03.027
关键词
Composting; Two phase olive mill waste alperujo; Olive grove; Olive oil; Fruit quality
资金
- Spanish Ministry of Science and Innovation [CTM2005-05324, CTM2009-1473-C02-02]
- Agricultural Research Institute of Spain (INIA)
- European Social Fund
Composting is a method for preparing organic fertilizers that represents a suitable management option for the recycling of two-phase olive mill waste (TPOMW) in agriculture. Four different composts were prepared by mixing TPOMW with different agro-industrial by-products (olive pruning, sheep manure and horse manure), which were used either as bulking agents or as N sources. The mature composts were added during six consecutive years to a typical Picual olive tree grove in the Jaen province (Spain). The effects of compost addition on soil characteristics, crop yield and nutritional status and also the quality of the olive oil were evaluated at the end of the experiment and compared to a control treated only with mineral fertilization. The most important effects on soil characteristics included a significant increase in the availability of N, P, K and an increase of soil organic matter content. The application of TPOMW compost produced a significant increase in olive oil content in the fruit. The compost amended plots had a 15% higher olive oil content than those treatment with inorganic fertilization. These organics amendments maintained the composition and quality of the olive oil. (C) 2014 Elsevier Ltd. All rights reserved.
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