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nutrient uptake

Catalogue: GRDC Updates
Williams and Lipsett (1961) found that 50-60 years of wheat cultivation in NSW resulted in a loss of 30% of organic C but only 17% organic P. In natural soils the extent of net immobilization of P in organic matter and probably soil organic matter levels may often be set by the P supply in the parent material... Many authors only consider supply to occur by mass flow and diffusion (the interception component in Table 2.2 is combined with the diffusion component)... Plants can access a greater volume of soil through the formation of a mycorrhizal symbiosis...
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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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