-
1
-
-
85024022840
-
-
Addis Ababa
-
Arkin, Y., Beyth, M., Dow, D. B., Levitte, D., Haile, T., and Hailu, T., 1971. Map ND 37–11, Mekele Sheet, Tigre province, Ministry of mines Geological Survey of Ethiopia. Addis Ababa.
-
(1971)
Map ND 37–11, Mekele Sheet, Tigre province, Ministry of mines Geological Survey of Ethiopia.
-
-
Arkin, Y.1
Beyth, M.2
Dow, D.B.3
Levitte, D.4
Haile, T.5
Hailu, T.6
-
2
-
-
0025527044
-
Comparison of eight phosphorus extraction methods on ten reddish brown soils of Ethiopian highlands
-
Bekele, T., and Höfner, W., 1990. Comparison of eight phosphorus extraction methods on ten reddish brown soils of Ethiopian highlands. Giessener Beiträge Zur Entwicklungforschung, 1:175–93.
-
(1990)
Giessener Beiträge Zur Entwicklungforschung
, vol.1
, pp. 175-193
-
-
Bekele, T.1
Höfner, W.2
-
4
-
-
0001134181
-
An improved type of soil hydrometer
-
Bouyoucos, G. J., 1953. An improved type of soil hydrometer. Soil Science, 76:377–78.
-
(1953)
Soil Science
, vol.76
, pp. 377-378
-
-
Bouyoucos, G.J.1
-
5
-
-
84864593081
-
Fractioning of soil phosphorus
-
Chang, S. E., and Jackson, M. L., 1957. Fractioning of soil phosphorus. Soil Science, 84:133–44.
-
(1957)
Soil Science
, vol.84
, pp. 133-144
-
-
Chang, S.E.1
Jackson, M.L.2
-
6
-
-
85102324711
-
Cation-Exchange Capacity
-
Black C.A., Evans D.D., White J.L., Ensminger L.E., Clark F.E., (eds), Wisconsin: Madison
-
Chapman, H. D., 1965. “Cation-Exchange Capacity.”. In Methods of Soil Analysis; Chemical and Microbiological Properties. Edited by:Black, C. A., Evans, D. D., White, J. L., Ensminger, L. E., and Clark, F. E., 891–901. Wisconsin:Madison.
-
(1965)
Methods of Soil Analysis; Chemical and Microbiological Properties.
, pp. 891-901
-
-
Chapman, H.D.1
-
7
-
-
0343501924
-
Interpretative Summary of Part 1: Factors affecting the availability of phosphorus in soils of the semi-arid tropics
-
Johansen C., Lee K.K., Sahrawat K.L., (eds), India: Patancheru
-
Cox, F. R., 1991. “Interpretative Summary of Part 1:Factors affecting the availability of phosphorus in soils of the semi-arid tropics.”. In Phosphorus Nutrition of Grain Legumes in the Semi-Arid Tropics. Edited by:Johansen, C., Lee, K. K., and Sahrawat, K. L., 43–46. India:Patancheru.
-
(1991)
Phosphorus Nutrition of Grain Legumes in the Semi-Arid Tropics.
, pp. 43-46
-
-
Cox, F.R.1
-
8
-
-
85101679871
-
Restoration of crop productivity on eroded or degraded soils
-
Follet R.F., Stewart B.A., (eds), Madison, WI: 677 South Segoe Road, 53711, USA
-
Frye, W. W., Bennett, O. L., and Buntley, G. J., 1985. “Restoration of crop productivity on eroded or degraded soils.”. In Soil Erosion and Crop Productivity. Edited by:Follet, R. F., and Stewart, B. A., 335–56. Madison, WI 677 South Segoe Road, 53711, USA
-
(1985)
Soil Erosion and Crop Productivity.
, pp. 335-356
-
-
Frye, W.W.1
Bennett, O.L.2
Buntley, G.J.3
-
10
-
-
0001272148
-
Phosphorus and its reactions in terrestrials soils and lake sediments
-
Hartikainen, H., 1979. Phosphorus and its reactions in terrestrials soils and lake sediments. J. Scient. Agric. Sc. Finl., 51:537–634.
-
(1979)
J. Scient. Agric. Sc. Finl.
, vol.51
, pp. 537-634
-
-
Hartikainen, H.1
-
12
-
-
0343937776
-
Phosphorus sorption by Nigerian soils
-
Loganathan, P., Isimimah, N. O., and Nwachuku, D. A., 1987. “Phosphorus sorption by Nigerian soils.”. In Soil Science 144
-
(1987)
Soil Science
, pp. 144
-
-
Loganathan, P.1
Isimimah, N.O.2
Nwachuku, D.A.3
-
13
-
-
34250108139
-
Phosphorus status of some Ethiopian soils, I. Sorption characteristics
-
Mamo, T., and Haque, I., 1987. Phosphorus status of some Ethiopian soils, I. Sorption characteristics. Plant and Soil, 102:261–66.
-
(1987)
Plant and Soil
, vol.102
, pp. 261-266
-
-
Mamo, T.1
Haque, I.2
-
14
-
-
0025943261
-
Phosphorus status of some Ethiopian soils, II. Forms and distribution of inorganic phosphates and their relation to available phosphorus
-
Mamo, T., and Haque, I., 1991a. Phosphorus status of some Ethiopian soils, II. Forms and distribution of inorganic phosphates and their relation to available phosphorus. Tropical Agriculture (Trinidad), 68:2–8.
-
(1991)
Tropical Agriculture (Trinidad)
, vol.68
, pp. 2-8
-
-
Mamo, T.1
Haque, I.2
-
15
-
-
0025998592
-
Phosphorus status of some Ethiopian soils, III. Evaluation of soil test methods for available phosphorus
-
Mamo, T., and Haque, I., 1991b. Phosphorus status of some Ethiopian soils, III. Evaluation of soil test methods for available phosphorus. Tropical Agriculture (Trinidad), 68:51–56.
-
(1991)
Tropical Agriculture (Trinidad)
, vol.68
, pp. 51-56
-
-
Mamo, T.1
Haque, I.2
-
16
-
-
0004306987
-
-
United States Dept. of Agriculture, USDA Agric. Circular
-
Olsen, S. R., Cole, C. V., Wanatabe, F. S., and Dean, L. A., 1954. Estimation of available phosphorus in soils by extraction with sodium bicarbonate. 939United States Dept. of Agriculture, USDA Agric. Circular.
-
(1954)
Estimation of available phosphorus in soils by extraction with sodium bicarbonate.
, pp. 939
-
-
Olsen, S.R.1
Cole, C.V.2
Wanatabe, F.S.3
Dean, L.A.4
-
17
-
-
0342631734
-
Phosphorus sorption isotherms for estimating phosphate requirements of some soils of Ethiopia
-
Piccolo, A., and Ali, A., 1984. Phosphorus sorption isotherms for estimating phosphate requirements of some soils of Ethiopia. Annali, XV:199–206.
-
(1984)
Annali
, vol.15
, pp. 199-206
-
-
Piccolo, A.1
Ali, A.2
-
19
-
-
0001823778
-
Testing soils for phosphorus
-
Madison, Wisconsin: L. M. Walsh and J. D. Beaton
-
Thomas, G. W., and Peaslee, D. E., 1972. “Testing soils for phosphorus.”. In Soil Testing and Plant Analysis. Madison, Wisconsin:L. M. Walsh and J. D. Beaton.
-
(1972)
Soil Testing and Plant Analysis.
-
-
Thomas, G.W.1
Peaslee, D.E.2
-
20
-
-
0343065985
-
Native inorganic phosphorus forms and their relation to some chemical indices of phosphate availability for soils of Agra District, India
-
Tripathi, B. R., Tandon, H. L. S., and Tynar, E. H., 1970. Native inorganic phosphorus forms and their relation to some chemical indices of phosphate availability for soils of Agra District, India. Soil Science, 109:93–101.
-
(1970)
Soil Science
, vol.109
, pp. 93-101
-
-
Tripathi, B.R.1
Tandon, H.L.S.2
Tynar, E.H.3
|