The first is a simple hydraulic gauge penetrometer with stainless steel rod. The second is a computerized recording penetrometer developed by Pike Agri-Lab Supplies. Agricultural consultants will find this package especially useful. Using a laptop computer and GPS receiver, detailed comparative charts can be created to track the effects of modified tilling practices. And with a data- capable cellular telephone, current results can be compared with those stored on the office computer.
Plant growth depends on quantity of mobile ions from soil and water extract.
However, if soil contains an active variety of healthy microbes, they will break down large ion clusters. Availability of plant nutrients. Indication of soil compaction. Results of herbicide spray adjustments. Ion Testers Simple tester determines sodium ion activity.