4 results for group: nutrients-1

How will minerals feed the world in 2050?

By 2050, the world’s population will have reached 9 billion. To feed that many people, soil fertility will have to be maintained artificially. All fertiliser materials depend on a geological resource: nitrogen (N) fertilizer production needs fossil fuels, and both phosphate (P) and potassium (K) are derived by mining. Irrespective of new biological techniques in plant breeding and genetic modification, soils still need to supply the mineral nutrients that plants require, and these are exported from soil with every harvest. Studies of global offtake of N, P and K from soils through crop production show that although N and P are roughly in ...

The Weathering Properties of Silicate Rock Dust Under Laboratory Conditions

The ion exchange of the primary minerals is one of the central topics from the perspective of geological and soil scientific studies as well as papers concerning plant nutrition. The latter has been given great importance in the last years and decades as can be seen from the numerous publications addressing this theme. Today primary broadspectrum minerals hardly play a role as a carrier of nutrients in conventional agriculture

Information for the Application of Silicate Rock Dust for the Amelioration of Forest Soils

This report contains information for “fertilization with rock dust” with an orientation towards practical application. The widely used term “gesteinsmehl” will be limited here to pulverized rocks of silicate origin.

Effect of Silicate Rock Dust in Forests: Result of the Experiments in the Forest of Arenberg-Schleiden after Five Years

The advantage of rock dust is that it is a natural, raw material, and carrier of numerous minerals and trace elements with long term effect. The nutrients are released slowly and gently during the process of natural weathering in the forest ecosystem (without fertilization shock). In the following, we report the latest results of the experiments in the forest of Arenberg-Schleiden.