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	1.	Fertility needs change under conservation tillage [Fertilization] by Schulte, E.E Material type: Article Language: En Publication details: 1979 In: Crops and Soils Magazine v. 31, no. 4, p. 10-1179-433803 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: 79-433803. Place hold Log in to add tags Add to cart (remove)
	2.	Review DRIS as a part of a routine plant analysis program by Kelling, K.A Schulte, E.E [coaut.] Material type: Article Publication details: 1986 In: Journal of Fertilizer Issues v. 3, no. 3, p. 107-112 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: REP-3950. Place hold Log in to add tags Add to cart (remove)
	3.	Soil calcium to magnesium ratios: Should you be concerned? [Soil testing, Wisconsin] by Simson, C.R Kelling, K.A [coaut.] Schulte, E.E [coaut.] Material type: Text Publication details: 1979 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: 80-566814. Place hold Log in to add tags Add to cart (remove)

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