Grain gross yield (kg/ha) was assessed in the five fertilizing treatments, without significant differences among them.  Absolute gross yield values ranged from 14.000 to 16.000 kg/ha, fulfilling expected results for this cereal.

<p>Regarding grain quality production, no significant differences were assessed in the four parameters used for grain quality determination: Weight of 1000 grams, Hectoliter weight, Flotation Index of grain and Grain Hardness.</p> <p><br /> Agricultural soil quality of parcels was analyzed after corn harvest, a significant improvement (increase) was assessed on pH, organic matters and assimilable Ca and Mg contents of the sewage sludge and compost treatments vs conventional fertilization.</p> <p><br /> The results of 2018 and 2019 seasons on corn will be confirmed in the corresponding 2020 corn trial, planned in the Work Plan Report set in Action B6.</p> <p>&nbsp;</p> <p style="text-align: center;"><img alt="" src="https://www.ctaex.com/icirbus/ficheros/imagenes/2020_06/19-12-maiz-2019-2.png" style="width: 500px; height: 266px; float: right;" />&nbsp;&nbsp;</p> <p style="text-align: center;">&nbsp;</p> <p style="text-align: center;"><img alt="" src="https://www.ctaex.com/icirbus/ficheros/imagenes/2020_06/19-12-maiz-2019-3.png" style="width: 500px; height: 319px; float: right;" /></p>