The following table provides the amount of nutrients removed/used by 1 ton of production of the crops.
If you have a large area grow some cheap legume and dig it back into the soil before flowering commences and add organic matter to the soil. This is called as green manuring. It can be done in strips for large acreages or garden beds. If soil does not have texture it will lose its air filled porosity and capacity to hold water. This can lead to lots of issues especially if nutrient uptake becomes a problem.
The information in this blog is summarized from the book Interpreting Soil Test Results. Authors are Pam Hazelton and Brian Murphy. Published by CSIRO, Australia in 2007.
If you want to know about the soil tests more there is plenty of information in the internet. This is provided as a guide only to help gardeners and farmers who want to understand these issues.