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dgt

Catalogue: GRDC Final Reports
Further field validation of DGT has been successful across a range of seasons - 2007 to 2011 - encompassing a wide range of soil types, highlighting the potential for improved decision-making based on DGT and significant economic benefits... Work during the project extension has enabled assessment of potassium (K) and sulphur (S) in a range of agricultural soils using DGT methodology... Current soil P testing (Colwell P with Phosphorus Buffering Index (PBI)) techniques can provide inaccurate estimates of plant available P. This is not solely limited to soils with high amounts of calcium carbonate but applies to many soils...
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Catalogue: GRDC Final Reports
It is recommended that the ability to predict both dry matter (important for hay) and grain response is assessed over successive growing seasons with contrasting climatic conditions... Previous work has shown potential complications associated with current soil P testing methods such as Colwell P and resin P. But the relatively new method called DGT appears to overcome these problems... To prove the ability of DGT to assess micronutrient deficiency, further work is required looking at dry matter and grain responses under field conditions as performed in this project (UA00095) with phosphorus...
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dgt (2)
soil (2)