Chemicals and Soils
Chemicals and Soils
This article describes the composition of soils (clay, humus and sand being the main ingredients), sources of plant nutrients and their replacement (manure, compost and synthetic fertiliser), and analysis of soils (important to obtain the best conditions for a particular crop). READ MORE...
This article describes the quarrying of limestone (CaCO3), its conversion into two other ‘lime’ products, burntlime (CaO) and hydrated lime, (Ca(OH)2), and their uses. READ MORE...
This article describes how lime is added to soils to raise the pH, the main benefits of doing this being to increase the availability of phosphorus and molybdenum, to prevent aluminium and manganese toxicity and encouragement of more productive pasture species. READ MORE...
This article describes the chemistry of both inorganic and organic phosphorus containing species present in soils, the effect of phosphate fertilisers on the cycling of phosphate in soils, and how the need for phosphate fertiliser is determined. READ MORE...
| Title: |
|---|
| Chemical Processes in New Zealand (2nd ed.) |
| Editors: |
| Packer, J. E., Robertson, J., Wansbrough, H. |
| Publisher: |
| New Zealand Institute of Chemistry |
| Chapters: |
| Production of Chemicals |
| Chemicals and Soils |
| The Dairy Industry |
| The Forestry Industry |
| Animal and Fish Products |
| Food and Beverages |
| Energy |
| Metals |
| Inorganic Materials |
| Polymers and Surface Coating |
| Detergents and Cosmetics |
| Biotechnology and Pharmaceuticals |
| Water |
| Environment |
| Analysis and Measurement |
| People and Chemistry |
| History: Chemistry in the Development of New Zealand Industry |
| Language: |
| English |
| Published: |
| Auckland, 1998 |