16 Pl an t pr od uc ti on Cr op c ul ti va ti on Compost increases soil fertility and improves soil structure which is why farmers use purchased or home made compost as well as preparations made from compost But how well do they actually work In order to answer this question various composting processes were tested in practical trials and the performance of the composts was compared with that of conventional farm manure The procedures tested included the Controlled Microbial Composting CMC method the microbial carbonization MC method and compost tea In addition simple quality management methods were developed for composts produced on farm RESULTS On average self produced compost was comparable in its ingredients to those of RAL certified green waste composts The ingredients varied greatly depending on the raw materials used The composts used in the practical trials resulted in significantly higher yields in summer cereals compared to farm manure but this was not the case for winter crops In both winter and summer cereals the two fertilization treatments resulted in different protein content of the grain In the wet year of 2017 compost tea did not achieve an increased yield compared to the normal farm manure for spelt summer barley or oats In the dry year of 2018 however yields for oats and field beans were higher In the dry year of 2018 winter wheat was rolled after the compost was added As a result higher protein levels in the grain were achieved compared to the grain that was fertilized with normal farm manure Biochar which was added to composts did not result in any yield increase FINAL REPORT www eip agrar sh de en eip innovationprojects 1st call innovation compost systems and soil fertility CONTACT PERSON Romana Holle phone 49 4331 333460 COMPARISON WITH COMPOST PRODUCED ON FARM Innovative composting Verschiedene Kompostierungsverfahren wurden mit betriebsüblichen Düngern verglichen

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