Abstract:
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(En)
This project aimed to improve the phosphorus fertiliser recommendation system for crop lupins in Western Australia. A database of over 300 trial years of phosphorus on crop lupin field trial information was constructed. A simple recommendation system which categorises phosphorus requirements of lupin crops by soil type, region and phosphorus soil test was developed and is now in use by extension officers. The variability in results obtained within a €category' in the simple recommendation system dictated
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