?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Non-inversion+tillage+in+organic+arable+cropping&rft.creator=Trump%2C+Andrew&rft.subject=Farm+nutrient+management&rft.subject=+Buildings+and+machinery&rft.subject=+Soil+tillage&rft.description=The+opportunities+for+using+an+non-inversion+tillage+(NI)+approach+in+organic+systems+has+not+been+well+investigated+by+research+and+what+research+has+been+done+has+not+perhaps+been+sufficiently+long-term.+The+benefits+of+the+system+in+terms+of+the+economics+of+establishment+and+the+improvement+in+soil+quality+make+the+system+attractive%2C+but+it+is+a+system+that+will+take+some+time+to+get+established+and+is+one+that+will+require+the+farmer+to+%C3%A2%C2%80%C2%9Chold+his+nerve%C3%A2%C2%80%C2%9D+as+grass+weed%2C+perennial+weed+burdens+and+slug+predation+may+increase+in+the+early+years+of+implementation.+%0D%0AIn+conventional+systems+and+the+POB+work+yields+have+reported+to+drop+when+implementing+an+NI+system.+This+is+before+some+of+the+benefits+of+a+better+quality+soil+are+seen%2C+but+in+the+work+done+by+Dr+Michael+Brandt+in+an+organic+system+no+yield+drop+was+experienced.+This+was+also+the+case+for+Danish+work+done+by+Per+Schonning.+Phosphate+(P)+and+Nitrate+(N)+losses+can+be+reduced+as+soil+structure+improves+and+becomes+more+stable.+Better+water+ingress+into+the+soil+will+reduce+run-off+and+sediment+and+P+loss+and+better+water+retention+in+the+soil+structure+will+reduce+leaching+potential.+This+is+perhaps+particularly+the+case+at+the+time+that+the+ley+phase+of+a+rotation+is+broken+when+greatest+risks+of+N+leaching+occurs+particularly+if+this+coincides+with+significant+rainfall.&rft.date=2008&rft.type=Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Forgprints.org%2F13572%2F2%2FRes_review_9_trump.pdf&rft.identifier=Trump%2C+Andrew+(2008)+Non-inversion+tillage+in+organic+arable+cropping.&rft.relation=http%3A%2F%2Forgprints.org%2F13572%2F