Sandy Soil Reclamation Using Biochar and Clay-Rich Soil
| Autor: | Diep Thi Pham, Hang Nga Thi Nguyen, Loc Van Nguyen, On Viet Tran, Anh Viet Nguyen, Lan Phuong Thi Dinh, Nguyen Van Vu |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Journal of Ecological Engineering, Vol 22, Iss 6, Pp 26-35 (2021) |
| Druh dokumentu: | article |
| ISSN: | 2299-8993 22998993 |
| DOI: | 10.12911/22998993/137445 |
| Popis: | The investigations on the effects of biochar application in improving the physio-chemical properties of soil have been carried out in many studies; however, there are very few studies on the combined use of both biochar and clay-rich soil for poor nutrient soil reclamation. Therefore, this study demonstrates improved water retention and nutrient retention of sandy soil by using biochar and biochar combined with clay-rich soil. The experiments were conducted on a small scale (greenhouse) with nine different application rates of biochar and clay-rich soil were mixed and then cultivated peanut, along with the drip irrigation technique using field moisture limit (about 70-80%) was applied under the condition of ensuring a sufficient supply of NPK for plant’s growth. The results showed that at the rates from 10.0-15.0% (w/w) clay-rich soil mixed with from 0.5-1.5% (w/w) of biochar applied to the tested sandy soil resulted in the positive effects on soil water holding, bulk density, permeability, pH, CEC, OM, total N, total P and peanut yield. The physical and chemical characteristics of the tested sandy soil have been improved by time and the application rate of 10.0% clay-rich soil and 0.5% biochar had the highest efficiency of pod fresh weight and pod dry weight during three studied seasons. |
| Databáze: | Directory of Open Access Journals |
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