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total crop residue

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Catalogue: GRDC Updates
Samples of chaff were collected from four different chaff carts during harvest 2011... The grain yield and crop harvest index were used to estimate the total crop residue in the paddock... The cost of a unit of potassium was estimated at the time of writing and will vary considerably...
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Catalogue: GRDC Updates (West)
" Nutrient removal - the hidden cost of chaff windrow burning Peter Newman, Department of Agriculture and Food, Geraldton carts and KEYMESSAGES The value of nutrients removed in a chaff cart when harvesting wheat in 2011 was $13/ha compared to $43/ha for windrow burning... The analysis suggests that lupin residue contains higher levels of potassium than cereal or canola; this is from a small number of samples only... The cost of a unit of potassium was estimated at the time of writing and will vary considerably...
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