The effectiveness of compost fertilizer manufactured with fly-ash-treated sludge has been assessed in winter cereals: wheat, barley and oats in CTAEX experimental farm.

<div style="text-align: justify;"> &nbsp;</div> <div style="text-align: justify;"> Broadcast sowing was performed in October 2018, and the trial consisted of five different fertilizing treatments in representative plots of 200 m2, under a randomized squared design, with four replications per treatment:</div> <div style="text-align: justify;"> &bull;<span style="white-space:pre"> </span>Fertilization with treated sludge (HM reduced) only in basal dressing, complemented till reach needing FU for each crop.&nbsp;</div> <div style="text-align: justify;"> &bull;<span style="white-space:pre"> </span>Fertilization with treated sludge (HM reduced) in basal and top dressing, complemented till reach needing FU for each crop.&nbsp;</div> <div style="text-align: justify;"> &bull;<span style="white-space:pre"> </span>Control with conventional fertilizer, applying standard FU.</div> <div style="text-align: justify;"> &bull;<span style="white-space:pre"> </span>Fertilization with compost from treated sludge in basal dressing to reach 100% of fertilizing needing of each crop.</div> <div style="text-align: justify;"> &bull;<span style="white-space:pre"> </span>Fertilization with compost from treated sludge in basal dressing to reach 50% of fertilizing needing of each crop.</div> <div style="text-align: justify;"> &nbsp;</div> <div style="text-align: justify;"> The cereal crops have been managed in the usual way, with continuous monitoring.&nbsp;</div> <div style="text-align: center;"> &nbsp;</div> <p style="text-align: center;"> <span style="text-align: center;">&nbsp; &nbsp;&nbsp;</span><img alt="" src="https://www.ctaex.com/icirbus/ficheros/imagenes/2019_04/captura2.png" style="text-align: center; width: 205px; height: 275px;" /><span style="text-align: center;">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</span><img alt="" src="https://www.ctaex.com/icirbus/ficheros/imagenes/2019_04/captura3.png" style="text-align: center; width: 206px; height: 275px;" /><span style="text-align: center;">&nbsp;</span></p>