CROP GROWING AND NUTRITION
The aim of all new irrigation and nutrition technology is basically to apply the correct amount of the required elements at the most optimal times for maximum crop performance having regard for commercial practicalities and sound economics. This review outlines the principles behind the commercial practices of the Crop Tech group, a privately owned agricultural consultancy and an analytical firm.
Hall, J.L. and Hall, P. (1989). CROP GROWING AND NUTRITION. Acta Hortic. 247, 193-198