-
1
-
-
34548553503
-
Conservation tillage - planting systems
-
Braithwaite P.G. Conservation tillage - planting systems. Rhod. Farmer 10 (1976) 28-36
-
(1976)
Rhod. Farmer
, vol.10
, pp. 28-36
-
-
Braithwaite, P.G.1
-
2
-
-
0000623388
-
Nitrogen - total
-
Methods of Soil Analysis, Part 2 - Chemical and Microbiological Properties. second ed. Page A.L., et al. (Ed), ASA & SSSA, Madison, USA
-
Bremner J.M., and Mulvaney C.S. Nitrogen - total. In: Page A.L., et al. (Ed). Methods of Soil Analysis, Part 2 - Chemical and Microbiological Properties. second ed. Agronomy vol. 9 (1982), ASA & SSSA, Madison, USA 595-622
-
(1982)
Agronomy
, vol.9
, pp. 595-622
-
-
Bremner, J.M.1
Mulvaney, C.S.2
-
3
-
-
34548567877
-
-
Elwell, H.A., 1975. Conservation implications on determined soil formation rates in Rhodesia. Science. Forum, Salisbury, Rhodesia.
-
-
-
-
4
-
-
0005472401
-
An assessment of soil erosion in Zimbabwe
-
Elwell H.A. An assessment of soil erosion in Zimbabwe. Zim. Sci. News 19 (1986) 27-31
-
(1986)
Zim. Sci. News
, vol.19
, pp. 27-31
-
-
Elwell, H.A.1
-
5
-
-
34548591126
-
-
EPA, 2006. Need for watershed approaches. http://www.epa.gov/owow/watershedframework/ch4.html.
-
-
-
-
6
-
-
0000431413
-
Peasant farming on infertile sands
-
Grant. Peasant farming on infertile sands. Rhod. Sci. News 10 (1981) 252-254
-
(1981)
Rhod. Sci. News
, vol.10
, pp. 252-254
-
-
Grant1
-
8
-
-
0001096637
-
Lithium sodium and potassium
-
Methods of Soil Analysis Part 2 - Chemical and Microbiological Properties. second ed. Page A.L., et al. (Ed), ASA & SSSA, Madison,USA
-
Knusden D., Peterson J., and Pratt E. Lithium sodium and potassium. In: Page A.L., et al. (Ed). Methods of Soil Analysis Part 2 - Chemical and Microbiological Properties. second ed. Agronomy vol. 9 (1982), ASA & SSSA, Madison,USA 225-245
-
(1982)
Agronomy
, vol.9
, pp. 225-245
-
-
Knusden, D.1
Peterson, J.2
Pratt, E.3
-
9
-
-
34548579118
-
The evolution of agricultural policy: 1990-2004
-
Rukuni M., Tawonezvi P., and Eicher C. (Eds), University of Zimbabwe Publications, Harare, Zimbabwe
-
Matondi P.B., and Munyuki-Hungwe M.N. The evolution of agricultural policy: 1990-2004. In: Rukuni M., Tawonezvi P., and Eicher C. (Eds). Zimbabwe's Agricultural Revolution Revisited (2006), University of Zimbabwe Publications, Harare, Zimbabwe 63-97
-
(2006)
Zimbabwe's Agricultural Revolution Revisited
, pp. 63-97
-
-
Matondi, P.B.1
Munyuki-Hungwe, M.N.2
-
10
-
-
0008420638
-
The effect of soil erosion on soil productivity as influenced by tillage: with special reference to clay and organic matter losses
-
Moyo A. The effect of soil erosion on soil productivity as influenced by tillage: with special reference to clay and organic matter losses. Adv GeoEcol. 31 (1998) 363-368
-
(1998)
Adv GeoEcol.
, vol.31
, pp. 363-368
-
-
Moyo, A.1
-
11
-
-
34548553506
-
-
Moyo, A., 2002. Quantifying nutrient losses with sheet erosion as influenced by tillage under granitic sands and semi-arid conditions of Zimbabwe. In: Proceedings of the 3rd International Conference on Land Degradation, Rio de Janeiro, pp. 178-183.
-
-
-
-
12
-
-
34548554612
-
-
Moyo, A., 2003. Assessment of the effect of soil erosion on nutrient loss from granite-derived sandy soils under different tillage systems in Zimbabwe. Ph.D. Thesis, University of Zimbabwe, Harare, Zimbabwe.
-
-
-
-
13
-
-
34548556573
-
-
ZERO, Harare
-
Moyo S., Robinson P., Katerere Y., Stevenson S., and Gumbo D. Zimbabwe's environmental dilemma. Balancing Resource Inequities (1991), ZERO, Harare
-
(1991)
Balancing Resource Inequities
-
-
Moyo, S.1
Robinson, P.2
Katerere, Y.3
Stevenson, S.4
Gumbo, D.5
-
14
-
-
0002281798
-
Phosphorus
-
Methods of Soil Analysis, Part 2 - Chemical and Microbiological Properties. second ed. Page A.L., et al. (Ed), ASA & SSSA, Madison, USA
-
Olsen S.R., and Sommers L.E. Phosphorus. In: Page A.L., et al. (Ed). Methods of Soil Analysis, Part 2 - Chemical and Microbiological Properties. second ed. Agronomy vol. 9 (1982), ASA & SSSA, Madison, USA 403-430
-
(1982)
Agronomy
, vol.9
, pp. 403-430
-
-
Olsen, S.R.1
Sommers, L.E.2
-
15
-
-
0028993885
-
Soil organic matter changes resulting from tillage and biomass production
-
Reicosky D.C., Kemper W.D., Langdale G.W., Douglas C.L., and Rasmussen P.E. Soil organic matter changes resulting from tillage and biomass production. J. Soil Water Conserv. 50 3 (1996) 253-261
-
(1996)
J. Soil Water Conserv.
, vol.50
, Issue.3
, pp. 253-261
-
-
Reicosky, D.C.1
Kemper, W.D.2
Langdale, G.W.3
Douglas, C.L.4
Rasmussen, P.E.5
-
16
-
-
34548559630
-
-
Ribaudo, M.O., Horan, R.D., Smith, M.E., 1999. Economics of water quality protection from non point sources. Theory and Practice: AER No. 782.
-
-
-
-
17
-
-
34548553505
-
-
Scheierling, S.M., 1996. Overcoming agricultural water pollution in the European Union. http://www.worldbank.org/fandd/english/0996/articles/0100996.htm.
-
-
-
-
19
-
-
34548557669
-
-
Stoorvogel, J.J., Smaling, E.M.A., 1990. Assessment of soil nutrient depletion in Sub-Saharan Africa 1983-2000. Report 28, Wageningen, The Netherlands.
-
-
-
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