Citation
Strong WM , Saffigna PG , Cooper JE Cogle AL (1992) Application of anhydrous ammonia or urea during the fallow period for winter cereals on the Darling Downs, Queensland .II. The recovery of 15N by wheat and sorghum in soil and plant at harvest. Soil Research 30, 711-721.
https://doi.org/10.1071/SR9920711
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