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Type: Conference paper
Title: Effects of N-fertilizer rate and placement on wheat (Triticum aestivum) establishment, growth and yield
Author: Kleemann, S.
Gill, G.
Coventry, D.
Citation: New directions for a diverse planet : proceedings of the 4th International Crop Science Congress, 26 September - 1 October, 2004 / Tony Fischer, et al (eds.): 5p. [electronic resource]
Publisher: The Regional Institute
Publisher Place:
Issue Date: 2004
ISBN: 1920842217
Conference Name: International Crop Science Congress (4th : 2004 : Brisbane, Australia)
Abstract: In the 2000 and 2001 growing seasons, field experiments evaluating the effects of N-fertilizer rate and placement on establishment, growth and grain yield of wheat were undertaken at Roseworthy, South Australia. Wheat seedling establishment was significantly reduced in 2000 (85%) and 2001 (67%) when high rates of N-fertilizer were placed with the seed. However, toxicity was mostly (2000) or partially (2001) avoided when high rates of N-fertilizer were either banded below or to the side of the seed providing adequate separation between seed and fertiliser. In 2000, there was evidence of high N uptake when banded N increased dry matter (DM) production, however there were no corresponding grain yield or protein benefits. In the 2001 season, there were small N-fertilizer responses in grain yield and protein. However, irrespective of N placement, the crop did not benefit from amounts of N input potentially put in the canopy. From a practical view this study has shown that one-off applications of N-fertilizer, although safer when banded did not necessarily position the crop for higher yields and or protein.
Keywords: N-fertilizer; rates; placement; wheat
RMID: 0020074796
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Appears in Collections:Agriculture, Food and Wine publications

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