Sustainable Dryland Farming

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1077. Broadbent, F.E. and F.J. Stevenson. 1966. Organic matter interactions.. Agricultural anhydrous ammonia: technology and use. p. 169-197..

5056. Parr, J.F. and R.I. Papendick. 1966. Retention of ammonia in soils. p. 213-236.. IN: M. McVickar et al. (eds.). Agricultural anhydrous ammonia: technology and use..

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