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	1.		Nitrogen in the environment. Vol. 1, Nitrogen behaviour in field soil / ed. by Donald R. Nielsen, J. G. MacDonald. by Nielsen, Donald R, (1931- ) [Red.] MacDonald, J. G [Red.] Material type: Text; Format: print ; Literary form: Not fiction Publication details: New York [etc.] : Academic Press, 1978 Other title: Nitrogen behaviour in field soil Availability: Items available for loan: Biblioteka Instytutu Botaniki im. W. Szafera PAN (1)Call number: II 10106. Place hold Request article Add to cart (remove)
	2.		Nitrogen in the environment. Vol. 2, Soil-plant-nitrogen relationships / ed. by Donald R. Nielsen, J. G. MacDonald. by Nielsen, Donald R, (1931- ) [Red.] MacDonald, J. G [Red.] Material type: Text; Format: print ; Literary form: Not fiction Publication details: New York [etc.] : Academic Press, 1978 Other title: Soil-plant-nitrogen relationships Availability: Items available for loan: Biblioteka Instytutu Botaniki im. W. Szafera PAN (1)Call number: II 10107. Place hold Request article Add to cart (remove)

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