Macadamia Husk Compost Improved Physical and Chemical Properties of a Sandy Loam Soil
| Autor: | John B.O. Ogola, Dembe Maselesele, Romeo N. Murovhi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Geography Planning and Development TJ807-830 Management Monitoring Policy and Law engineering.material TD194-195 01 natural sciences Husk complex mixtures macadamia husk compost Renewable energy sources C:N ratio Soil pH Organic matter GE1-350 organic matter chemistry.chemical_classification Total organic carbon Environmental effects of industries and plants Renewable Energy Sustainability and the Environment Compost soil fertility 04 agricultural and veterinary sciences Soil carbon Environmental sciences chemistry Agronomy Loam 040103 agronomy & agriculture engineering 0401 agriculture forestry and fisheries Soil fertility exchangeable cations 010606 plant biology & botany |
| Zdroj: | Sustainability, Vol 13, Iss 6997, p 6997 (2021) Sustainability Volume 13 Issue 13 |
| ISSN: | 2071-1050 |
| Popis: | Poor soil fertility caused mainly by low and declining soil organic carbon is one of the major constraints limiting crop productivity in tropical and subtropical regions of South Africa. We evaluated the effect of macadamia husk compost (MHC) on selected chemical and physical properties of a sandy loam soil in NE South Africa in two successive seasons. The treatments, laid out in randomised, complete block design and replicated four times, were: (i) zero control, (ii) inorganic fertilizer (100:60:60 NPK Kg ha−1), (iii) MHC at 15 t ha−1, and (iv) MHC at 30 t ha−1. Soil bulk density water holding capacity soil pH electrical conductivity (EC) organic carbon total N and available P, K, Ca, Mg, Al, Zn, and Cu were determined at 0–15 cm soil depth. Macadamia husk compost application decreased bulk density and increased water holding capacity. MHC and inorganic fertilizer increased soil pH, organic carbon, total N, C:N ratio, available P, exchangeable cations, and micronutrients but the effect was more pronounced under MHC treatments in both seasons. The positive effect of MHC on soil physicochemical properties was associated with an increase in soil organic carbon due to MHC application hence, MHC may offer a sustainable option of increasing soil productivity, particularly in areas characterised by low SOC. |
| Databáze: | OpenAIRE |
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