Profiles

Slab Registration

• horizontal measurements should be taken using the WET meter as shown above;
• the number of readings per slab will depend on the slab length (9 readings in a 1 meter slab as shown above);
• this is usually done in one or two slabs;
• no gutter rows, outside rows or slabs in extreme conditions (end slabs);
• we are looking to profile the distribution of water and EC in the slab.

The position of the root development in the slab will be dictated by the conditions in different part of the slab.

• it is important to keep the number of roots growing at the bottom of the slab to a minimum;
• to avoid competition between roots for nutrients and oxygen;
• to maximise the use of the total volume of the slab;
• to get even dry back and control over the water content and EC to balance the plant;
• to maximise water and fertilizer use;
• dose size is a very important tool for controlling this.

Measuring in this way will help you check the water and EC distribution.

 

Water distribution in the slab shown with profiles at different dose size factors.

EC distribution in the slab shown with profiles at different dose size factors. Please talk to us if you want a detailed look at some of your slabs in this way.