A diagram was used to show the effect of pH on plant nutrient availability. A maize leaf, illustrating a potassium deficiency, and a maize cob, illustrating a boron deficiency, were brought for demonstration purposes. Experiential learning anbsp;...
|Title||:||An Evaluation of Community-driven Economic Development, Land Tenure, and Sustainable Environmental Development in the Kat River Valley|
|Author||:||E. L. Nel, Trevor Raymond Hill|
|Publisher||:||HSRC Press - 2000|