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tissue concentration

Catalogue: GRDC Updates
Soil factors affecting micronutrient availability... Even though needed in small quantities, Copper (Cu), Manganese (Mn), Iron (Fe), Zinc (Zn), Boron (B) and Molybdenum (Mo) are all essential for plant growth, although the demand is small relative to nitrogen and phosphorus... The discussion aims to review these issues relative to micronutrients...
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Catalogue: GRDC Updates
In a further study the correlation between rooting depth yield and uptake of B was measured at a B toxic site for three varieties differing in their level of B tolerance... Rooting depth was measured to a depth of 1m using soil cores taken immediately after harvest with soil cores segmented at 20cm intervals... B may not be the primary factor influencing rooting depth and the work of Nuttall et al. indicates that subsoil salinity and sodicity have a greater influence on water extraction from the subsoil than does B. This does not imply that B tolerance is irrelevant but indicates "transect" studies using a single variety need to be complemented by studies utilising isogenic lines to define the effect on yield of subsoil constraints...
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