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crop nutrient management

Catalogue: GRDC Final Reports
The uptake of PA was limited by difficulties that individual farmers and industry were encountering in deciding which layers of spatial data to gather and how to integrate the information into farm management... Crop yield maps are the best method for quantifying crop yield variability across paddocks and farms and across seasons... The project has produced the first true site-specific gross margin maps in Australia by combining grain quantity, moisture, and protein measured on harvester and applying the appropriate delivery premium/discounts scales...
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Catalogue: GRDC Final Reports
Compared with drilling phosphorus (P) fertiliser with seed (the current practice for no-till crops), plant uptake of P was often improved when fertiliser was banded below seed while sowing or the topsoil was cultivated before drilling current fertiliser with seed while sowing... At Moora, nutrient uptake and growth responses of wheat, lupin and canola to sideway nutrient distribution were evaluated by applying four fertiliser placements: nil; below the seed; 15 or 30 cm away from the row in the 2006 and 2007 seasons... A series of glasshouse experiments was conducted to investigate the effects of variable soil distributions of P and potassium (K) on plant growth and nutrient uptake in wheat using vertical or horizontal split-root systems...
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