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	1.	Comparison of energy requirements of no-tillage and conventional tillage by Frye, W.W Duncan, G.A [coaut.] Walker, J.N [coaut.] Material type: Text Language: En Publication details: 1980 In: No tillage research: research reports and reviews. Lexington (USA). The University. [1980]. p. 76-8382-805450 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: 82-805450. Place hold Log in to add tags Add to cart (remove)
	2.	Economically sustainable crop production with legume cover crops and conservation tillage by Frye, W.W Blevins, R.L [coaut.] Material type: Article Language: En Publication details: 1989 In: Journal of Soil and Water Conservation v. 44, no. 1, p. 57-60615011 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: REP-4689. Place hold Log in to add tags Add to cart (remove)
	3.	Fall- vs. spring-applied sulfur-coated urea, uncoated urea, and sodium nitrate for corn by Frye, W.W Material type: Article Language: En Publication details: 1977 In: Agronomy Journal v. 69, no. 2, p. 278-28277-186929 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: 77-186929. Place hold Log in to add tags Add to cart (remove)
	4.	No-tillage agriculture by Phillips, R.E Blevins, R.L [coaut.] Frye, W.W [coaut.] Phillips, S.H [coaut.] Thomas, G.W [coaut.] Material type: Article Language: En Publication details: 1980 In: Science v. 208, no. 4448, p. 1108-111381-683948 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: 81-683948 \| 81-663385. Place hold Log in to add tags Add to cart (remove)
	5.	Intensive cropping effects on physical and chemical conditions of two soils in Kentucky by Wells, K.L Frye, W.W [coaut.] Murdock, L.W [coaut.] Material type: Article Publication details: 1983 In: Communications in Soil Sciences and Plant Analysis v. 14, no. 4, p. 297-30784-030503 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: 84-030503. Place hold Log in to add tags Add to cart (remove)
	6.	Economics of winter cover crops as a source of nitrogen for no-till corn by Frye, W.W Smith, W.G [coaut.] Williams, R.J [coaut.] Material type: Article Publication details: 1985 In: Journal of Soil and Water Conservation v. 40, no. 2, p. 246-24886-069950, 86-042649 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (2)Call number: 86-069950 \| 86-042649, ... Place hold Log in to add tags Add to cart (remove)
	7.	Energy conservation in no-tillage production of corn by Frye, W.W Blevins, R.L [coaut.] Murdock, L.W [coaut.] Wells, K.L [coaut.] Material type: Text Publication details: 1980 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: 82-805549. Place hold Log in to add tags Add to cart (remove)
	8.	The fate of nitrogen fertilizer applied to no-till corn by Smith, S Blevins, R.L [coaut.] Frye, W.W [coaut.] Grove, J.H [coaut.] Wells, K.L [coaut.] Material type: Article Publication details: 1984 In: Progress report Kentucky Agricultural Experiment Station (USA). (Jul 1984). (no. 281) p. 12 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: 90-107545. Place hold Log in to add tags Add to cart (remove)
	9.	Conservation tillage for erosion control and soil quality by Blevins, R.L Doran, J.W [coaut.] Frye, W.W [coaut.] Lala, R [coaut.] Langdale, G.W [coaut.] Pierce, F.J. Frye, W.W [Eds.] Material type: Text Publication details: Chelsea, MI (USA) Ann Arbol Press : 1998 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: REP-13118. Place hold Log in to add tags Add to cart (remove)

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