Why not experiment with easy pH science techniques to increase plant growth? This article will simply explain what soil pH is; what effect soil pH has on nutrient availability and plant growth; how to measure it and optimise soil conditions. It is vital to know the pH of soil, because most South African soils are …

Consumers and regulators are concerned about the safety of fruits, vegetables, salad and other ready-to-eat products. This includes preventing contamination from both pathogens and chemical contaminants. In South Africa, chlorine is often used to disinfect the wash water for salads. The use of chlorine can lead to contamination of the product with chlorinated chemicals. As …