?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Optimierung+des+biologischen+Gem%C3%83%C2%BCsebaus+durch+Gr%C3%83%C2%BCnd%C3%83%C2%BCngung+und+Fruchtfolge&rft.subject=+Crop+combinations+and+interactions&rft.subject=+Vegetables&rft.description=Organic+vegetable+production+is+highly+dependent+on+external+nitrogen+input.+Frequently+no+manure+is+available%2C+because+this+farm+type+is+normally+specialised+and+thus+stockless.+Consequently+vegetable+producers+are+subjected+to+crisis%2C+related+to+severe+animal+diseases+such+as+BSE.%0D%0ATo+increase+the+nitrogen+stocks+on+the+farms%2C+nitrogen+fixing+legumes+are+cultivated+as+green+manure.+However+only+parts+of+the+knowledge+gained+in+arable+crops+can+be+transferred+to+vegetable+production+systems.+In+this+project%2C+we+investigate+how+to+increase+the+benefits+from+a+greenmanure+through+opimal+cultivation+techniques.+Moreover+we+optimize+rotations+in+crops+which+are+harvested+in+late+autumn+such+as+cabbage+or+leek+by+undersowing+greenmanure.+Questions+of+nitrogen+transfer+from+green+manure+to+the+following+crop+are+in+focus.+However+we+also+establish+practices+to+control+the+weeds+and+the+undersown+greenmanure+in+the+standing+crop.+Moreover+the+effects+of+a+greenmanure+on+the+suppression+of+soil+born+diseases+and+on+mycorrhizal+root+symbiosis+are+assessed.+Compost+is+used+alternatively+to+greenmanure%2C+as+it+is+known+that+high+quality+composts+have+a+high+capacity+to+control+root+diseases.%0D%0A%0D%0AProject+aims%3A%0D%0A-+To+optimize+the+incorperation+of+different+green+manure+mixtures+%0D%0A-+To+optimize+green+manuring+during+winter+after+crops+with+late+harvest%0D%0A%0D%0ATarget+Group%3A+%0D%0A-+Vegetable+growers%0D%0A%0D%0AMethodology%3A%0D%0A-+Field+trials%3B+yield%2C+N+Cycle%2C+pests+and+diseases%2C++randomized+block&rft.type=Project+description&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Forgprints.org%2F6216%2F1%2Ffibl-projekt-anbautechnik-pflanzenbau-gruendungung.pdf&rft.identifier=%7BProject%7D+Optimierung+des+biologischen+Gem%C3%83%C2%BCsebaus+durch+Gr%C3%83%C2%BCnd%C3%83%C2%BCngung+und+Fruchtfolge.+[Optimization+of+organic+vegetable+production+by+use+of+greenmanure+and+crop+rotation.]+Runs+2003+-+2005.+Project+Leader(s)%3A+Koller%2C+Martin+and+M%C3%83%C2%A4der%2C+Paul%2C+Research+Institute+of+Organic+Agriculture+(FiBL)%2C+CH-5070+Frick.+More+information+online+at+%3Chttp%3A%2F%2Fwww.fibl.org%2Fde%2Fschweiz%2Fforschung%2Fanbautechnik-pflanzenbau.html+%3Chttp%3A%2F%2Fwww.fibl.org%2Fde%2Fschweiz%2Fforschung%2Fanbautechnik-pflanzenbau.html%3E%3E.&rft.relation=http%3A%2F%2Forgprints.org%2F6216%2F