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Field Guide. cropping and pastoral grazing on flat to rolling country.

Field Guide. cropping and pastoral grazing on flat to rolling country.

Field Guide. cropping and pastoral grazing on flat to rolling country.

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PLANT INDICATORSS<strong>to</strong>ck-carrying capacity <str<strong>on</strong>g>and</str<strong>on</strong>g> fertiliser use Assess s<strong>to</strong>ck-carrying capacity, based <strong>on</strong> your knowledge of thepaddock. Is additi<strong>on</strong>al fertiliser needed <strong>to</strong> maintain s<strong>to</strong>cking capacity?PASTURE PRODUCTION can recover almost completely withinapproximately 6 m<strong>on</strong>ths following moderate soil compacti<strong>on</strong>. Severecompacting <str<strong>on</strong>g>and</str<strong>on</strong>g> pugging, however, can reduce dry matter producti<strong>on</strong>by up <strong>to</strong> 40–45 percent. If feed utilisati<strong>on</strong> ratios are around 0.7, thisdecline in pasture producti<strong>on</strong> would reduce potential s<strong>to</strong>ck numbersby 10–20 percent. To offset this trend, additi<strong>on</strong>al fertiliser is oftenapplied <strong>to</strong> maintain dry matter producti<strong>on</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g> s<strong>to</strong>ck numbers.82 VISUAL SOIL ASSESSMENT: Volume 1

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