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	1.	Determination and isotope‐ratio analysis of different forms of nitrogen in soils : 3. Exchangeable ammonium, nitrate, and nitrite by extraction‐distillation methods by Bremner, J.M Keeney, D.R Material type: Article; Type of continuing resource: periodical Language: English Publication details: Madison, WI (USA) : Soil Science Society of America : Wiley, 1966 In: Soil Science Society of America Journal v. 30, no. 5, p. 577-582 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1). Place hold Log in to add tags Add to cart (remove)
	2.	Determination and isotope‐ratio analysis of different forms of nitrogen in soils : 4. Exchangeable ammonium, nitrate, and nitrite by direct‐distillation methods by Keeney, D.R Bremner, J.M Material type: Article; Type of continuing resource: periodical Language: English Publication details: Madison, WI (USA) : Soil Science Society of America : Wiley, 1966 In: Soil Science Society of America Journal v. 30, no. 5, p. 577-582 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1). Place hold Log in to add tags Add to cart (remove)

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