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Soil hydrology / Miroslav Kutilek & Donald R. Nielsen.
by Kutilek, Miroslav.; Nielsen, Donald R.;
Year: c1994., Callno: 631.432 KUT
Book
Nitrogen in the environment. vol. 1. Nitrogen behaviour in field soil / edited by Donald R. Nielsen [and] J.G. McDonald.
by Nielsen, Donald R.; McDonald, J. G.;
Year: 1978., Callno: 631.811.1 NIT
Book
Nitrogen in the environment. vol. 2. Soil-plant-nitrogen relationships / edited by Donald R. Neilsen [and] J.G. McDonald.
by McDonald, J. G.; Nielsen, Donald R.;
Year: 1978., Callno: 631.811.1 NIT
Book
Irrigation of agricultural crops / B.A. Stewart and D.R. Nieklsen, co-editors.
by Stewart, B. A. (Bobby Alton), 1932-; American Society of Agronomy.; Nielsen, Donald R.;
Year: 1990., Callno: 631.67 IRR
Book
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