To the farmer – utilisation of zeolites
In the sustainable greenhouse model zeolites were utilised on form of chabazite (size 0-6 mm, specific weight 0.90, water content 12-13%). They were spread in the initial phases of the cultivation on all the surface by an amount of 15 kg per m2 and buried in the soil through a light working 15 cm deep. In many countries (Spain, Israel, USA, Australia) which have situations similar to those involving Italian farmers, the utilisation of zeolites in horticulture is now a common practice thanks to the results obtained. Also in Latium some tests applied on field and the evidences obtained by the farmers that utilised zeolites demonstrated a promising actuality with a general agreement on the possibility of an evident spare both of water consumption for irrigation (even of 30-40%) and of chemic fertilizers, keeping the same results of production.
|Zeolites got peculiar chemical-physical
- reversible dehydration;
- selective molecular absorbance;
- catalyst behaviour;
- very high aptitude to cationic exchange (2,4 ± 0,2 meq per gram)
- high aptitude of water retention (CC) 37,4%
The proper introduction
of zeolites into farming soils gives important benefits:
Its very important to draw attention to the fact that the utilisation of zeolites implies an “everlasting modification”, because their action is protracted for a long time, for hundreds of years. For this reason from the economical point of view too, the farmers will obtain great benefits from their utilisation.