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maintenance

Catalogue: GRDC Updates (West)
Phosphorus management is characterized by an initial build-up phase that corrects P deficiency followed by a maintenance phase after soils reach the Colwell P values needed for near maximum production (critical values)... For example, if we removed 5 kg P/ha in the form of P contained in grains and we applied 10 kg P/ha as fertiliser, then the P balance efficiency is 5/10x100 = 50 %. P balance efficiency allows us to assess along with soil test P data if we are building-up, maintaining or depleting soil P... We estimate that about 87% of the wheat paddock soil samples examined are no longer P deficient (exceed their critical values)...
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Catalogue: GRDC Factsheets
The decision of which silo to buy can be daunting, mainly because it's a 20+ year investment and not a purchase that is easily returned or traded-in if it proves unsuitable... Choose carefully: While all silos are made to store grain and 'do the job', some will enable superior grain quality management than others... The main options are to have an WHS compliant ladder, use a safety harness or build a platform that spans along the top of a line of silos...
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Catalogue: GRDC Factsheets
The decision of which silo to buy can be daunting, mainly because it's a 20+ year investment and not a purchase that is easily returned or traded-in if it proves unsuitable... Choose carefully: While all silos are made to store grain and 'do the job', some will enable superior grain quality management than others... In order to meet a ve-minute half-life pressure test, the silo must have: a pressure (oil) relief valve large enough to suit the silo and with gauge markings system to add air to perform a pressure test rubber seals made of high-density EPDM (ethylene-propylene-diene-monomer) rubber with a strong memory and UV resistance...
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