-
1
-
-
0003606950
-
-
United States Department of Agriculture, Elsevier Science Publishing Company, Washington, DC
-
Allison, F.E. 1973. Soil organic matter and its role in crop production. United States Department of Agriculture, Elsevier Science Publishing Company, Washington, DC.
-
(1973)
Soil Organic Matter and Its Role in Crop Production
-
-
Allison, F.E.1
-
2
-
-
0000806105
-
Evaluation of some Ensete ventricosum clones foryield with emphasis on the effect of length of fermentation on carbohydrate and calcium content
-
Bezuneh, T. 1984. Evaluation of some Ensete ventricosum clones foryield with emphasis on the effect of length of fermentation on carbohydrate and calcium content. Trop. Agric. (Trinidad) 61(2): 111-116.
-
(1984)
Trop. Agric. (Trinidad)
, vol.61
, Issue.2
, pp. 111-116
-
-
Bezuneh, T.1
-
3
-
-
84936617402
-
Determination of total organic and available phosphorus in soils
-
Bray, R.H. and L.T. Kurtz. 1945. Determination of total organic and available phosphorus in soils. Soil Sci. 59:39-45.
-
(1945)
Soil Sci.
, vol.59
, pp. 39-45
-
-
Bray, R.H.1
Kurtz, L.T.2
-
5
-
-
0004306987
-
-
USDA Circ. No. 939. United States Government Printing Office, Washington, DC
-
Olsen, S.R., V. Cole, F.S. Watanabe, and L.A. Dean. 1954. Estimation of available phosphorus in soils by extraction with sodium bicarbonate. USDA Circ. No. 939. United States Government Printing Office, Washington, DC.
-
(1954)
Estimation of Available Phosphorus in Soils by Extraction with Sodium Bicarbonate
-
-
Olsen, S.R.1
Cole, V.2
Watanabe, F.S.3
Dean, L.A.4
-
6
-
-
0030619752
-
Crop rotation and tillage effects on organic carbon sequestration in the semiarid southern great plains
-
Potter, K.M., O.R. Jones, H.A. Torbert, and P.W. Unger. 1997. Crop rotation and tillage effects on organic carbon sequestration in the semiarid southern great plains. Soil Sci. 162(2):140-147.
-
(1997)
Soil Sci.
, vol.162
, Issue.2
, pp. 140-147
-
-
Potter, K.M.1
Jones, O.R.2
Torbert, H.A.3
Unger, P.W.4
-
7
-
-
6844227121
-
Useful plants in Ethiopia
-
Imperial Ethiopian College of Agricultural and Mechanical Arts, Jima Experiment Station. Oklahoma State University-USAID Contract publication, c/o American Embassy, Addis Ababa
-
Siegenthaler, I.E. 1982. Useful plants in Ethiopia. Imperial Ethiopian College of Agricultural and Mechanical Arts, Jima Experiment Station. Oklahoma State University-USAID Contract publication, c/o American Embassy, Addis Ababa, Ethiopia. Exp. Sta. Bull 1(14):11-12.
-
(1982)
Ethiopia. Exp. Sta. Bull
, vol.1
, Issue.14
, pp. 11-12
-
-
Siegenthaler, I.E.1
-
8
-
-
0008122802
-
Ensete cultivation in the Southern Highlands of Ethiopia
-
Simmonds, N.W. 1958. Ensete cultivation in the Southern Highlands of Ethiopia. Trop. Agric. (Trinidad) 35(4):302-307.
-
(1958)
Trop. Agric. (Trinidad)
, vol.35
, Issue.4
, pp. 302-307
-
-
Simmonds, N.W.1
-
9
-
-
6844227120
-
Enset-based Sustainable Agriculture in Ethiopia
-
13-20 December 1993, Addis Abeba, Ethiopia
-
Tsedeke, A., C. Hiebsch, A.B. Steven, and S. Gebremariam. 1996. Enset-based Sustainable Agriculture in Ethiopia, p. 334. In: Proceeding from the International Workshop on Enset, 13-20 December 1993, Addis Abeba, Ethiopia.
-
(1996)
Proceeding from the International Workshop on Enset
, pp. 334
-
-
Tsedeke, A.1
Hiebsch, C.2
Steven, A.B.3
Gebremariam, S.4
-
10
-
-
84929047274
-
An examination of the Degtjareff method for determining soil organic matter, and a proposed modification of the chromic acid titration method
-
Walkley, A. and C.A. Black. 1934. An examination of the Degtjareff method for determining soil organic matter, and a proposed modification of the chromic acid titration method. Soil Sci. 37:29-38.
-
(1934)
Soil Sci.
, vol.37
, pp. 29-38
-
-
Walkley, A.1
Black, C.A.2
-
11
-
-
0003660783
-
-
SYSTAT, Inc., Evanston, IL
-
Wilkinson, L., MA. Hill, and E. Vag. 1992. SYSTAT: Statistics, Version 5.2 ed. SYSTAT, Inc., Evanston, IL.
-
(1992)
SYSTAT: Statistics, Version 5.2 Ed.
-
-
Wilkinson, L.1
Hill, M.A.2
Vag, E.3
|