oa Farming in South Africa - The lae of the minimum
|Article Title||The lae of the minimum|
|© Publisher:||Department of Agriculture (South Africa)|
|Journal||Farming in South Africa|
|Affiliations||1 Chemistry, School of Agriculture, Potchefstroom|
|Publication Date||Jun 1933|
|Keyword(s)||Crop yield, Cultivation, Examination of soil, Humus, Nitrogen, Nutrients, Phosphate, Potash and Soil deficiency|
Men may make laws for the guidance and control of their affairs, and these laws may be, and frequently are, broken. The laws concerning plant growth and crop yield are however, not man-made, but are laid down by nature.
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