Recent farming trends in the cereal zone of South Australia and implications for fertilizer use
1987
Reuter, D.J. | Gibson, P.R. | Elliott, D.E. | Hannam, R.J. (South Australian Dept. of Agriculture, Northfield)
Increased removal of soil nutrients by increased cropping of high yielding cereal varieties and grain legumes together with reduced financial returns from cropping are discussed in relation to new technology developed to ensure adequate nutrient replenishment. The efficient use of fertilizers is emphasized and based on new technology for accurately predicting requirements of nitrogen, phosphorus, trace elements and the use of high analysis fertilizers; the cost-price squeeze on fertilizer recommendations is an important aspect. The important role of legumes is discussed in relation to nitrogen fixation and the availability of this nitrogen to cereal crops. The use of new tools for recognizing nutrient stress is mentioned together with precautions necessary to ensure their correct application.
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