Buildup of EC is due to accumulation of ions that are not absorbed by plants. Data for the nutrient solution are presented in the upper part of the table, and the respective analysis of DW is at the bottom part of the table. In this experiment, a build up of NO 3 in DW is also observed, inclinig an excess application of this element. It is also concluded that under these conditions, neither of the treatments proved significantly superior. If water uptake is higher than that of nutrients, EC will build up, and vice versa.
Various factors influence the application of nutrients.
At low humidity, the ratio increases to 400 but under high CO 2 levels is reduced to 200 or even less. This is a positive indication of the plant's ability to absorb nutrients, and there is no need to immediately add more of these elements. Proper management and saving efficiency is achieved when divert factors such as pH, EC and nutrient concentrations in the solution are controlled along with correct irrigation regime. Advances in Fertigation. Bell, F. R. and A. Marchant.