Optimization of wheat straw co-composting for carrier material development
Copyright © 2019 Elsevier Ltd. All rights reserved.
| Veröffentlicht in: | Waste management (New York, N.Y.). - 1999. - 98(2019) vom: 15. Okt., Seite 37-49 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2019
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| Zugriff auf das übergeordnete Werk: | Waste management (New York, N.Y.) |
| Schlagworte: | Journal Article Carrier material Co-composting Multiple response optimization Optimization Smart fertilizer Wheat straw Fertilizers Soil |
| Zusammenfassung: | Copyright © 2019 Elsevier Ltd. All rights reserved. In modern agriculture large amounts of harvesting residues are produced each year due to the increase of agricultural activities in order to maintain food production for the growing population. The development of innovative fertilizers, able to satisfy nutrient needs without adverse effects on the environment. In order to allow for effective production of a carrier material for smart fertilizers, the objective of this study is to propose a statistical method to optimize the water holding capacity (WHC) and organic matter stability properties of co-composted wheat straw (WS) by using a multi response method. We varied WS size (<1, 1-2, >2 cm), charge of Trichoderma harzianum (0, 7 and 14 discs), and nitrogen addition (0, 0.95 and 1.95 g kg-1). Optimized carrier material was characterized by a higher porosity (WHC 91.7%) than raw WS, associated to structural changes and slightly increased stability as indicated by C:N ratio of the 59.5, slightly alkaline (pH ∼ 8.0), with high OM structural complexity (E4:E6 ∼ 7,9) and enhanced sorption properties (total acidity ∼ 11.6). We conclude that the optimal treatment included co-composting of WS with fine particle size (<1 cm), with a charge of T. harzianum (14 discs), and 0.98 g kg-1 of NH4NO3 to obtain a suitable WS carrier material with high possibility to improve nutrient and water holding capacity in soil |
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| Beschreibung: | Date Completed 12.09.2019 Date Revised 12.09.2019 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1879-2456 |
| DOI: | 10.1016/j.wasman.2019.07.041 |