Management of cropping systems and soil fertility, quality of agricultural products and agricultural by-product recovery

Organic amendments and their extracts for the management of soil fertility


Compost matrix contains a wealth of organic substances which undergo both stabilization towards humus-like substances and mineralization to originate nutrients which may be readily absorbed by plants. Mineral ions may be released very slowly ( “slow release” effect). This is why compost is called “amendment” since its effect on fertility is more important over the long period. A more effective extraction of nutrients from compost is achieved through chemical and technological means. This makes the effects on fertility more successful also in the short term.

Starting: 2.01.2002
Scheduled ending: 23.09.2019
Real ending: 23.09.2019


Transfer of techniques for the production of fertilizers extracted from compost for use in organic agriculture.



·     Reducing recourse to external inputs in organic agriculture;

·     Diversifying sources of nutrients which may result from the recycling of organic matter;

·     Increasing the application potential of compost.



Transfer of results in fertilization protocols of organic farms and in cooperation activities.



·        Strengths

Compost and water extracts are readily applicable on the farm based as they are on the availability of waste biomasses which are often not identified as nutrients.

·        Weaknesses

This practice is not included in the regulations. The resulting fertilizer is not allowed in organic agriculture.

Reference person/s: Ceglie Francesco / Verrastro Vincenzo /
Collaborators: Al Chami Ziad / Aly Adel /
Institutions involved:
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