Search results for: Kowal, Jan M.
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1
Agricultural ecology of savanna : a study of West Africa
Authors: Kowal, Jan M.
Published: Clarendon Press, 1978Physical Description: ix, 403 pages : illustrations ; 24 cmHoldings: Loading…
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2
An agroclimatological atlas of the northern states of Nigeria
Authors: Kowal, Jan M.
Published: Ahmadu Bello University Press, 1972Physical Description: 111 pages : 16 folded maps ; 30 x 41 cmHoldings: Loading…
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3
Some properties of soils at Samaru, Zaria, Nigeria ; storage of water and its use by crops. 3. Seasonal pattern in soil water changes under various vegetation covers and bare fallo...
Authors: Kowal, Jan M.
Published: Institute for Agricultural Research, Samaru, Ahmadu Bello University, 1970Physical Description: 16 unnumbered pages : graphs, tables ; 28 cmHoldings: Loading…
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4
Effect of an exceptional storm on soil conservation at Samaru, Nigeria.
Authors: Kowal, Jan M.
Published: Institute for Agricultural Research, Samaru, Ahmadu Bello University, 1972Physical Description: 163-173 pages : tables, graphs. ; 25 cm.Holdings: Loading…
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5
The hydrology of a small catchment basin at Samaru, Nigeria.
Authors: Kowal, Jan M.
Published: Institute for Agricultural Research, Samaru, Ahmadu Bello University, 1972Physical Description: 27-52, 120-147 pages : illustrations, map, tables, graphs. ; 25 cm.Holdings: Loading…
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6
Radiation and potential crop production at Samaru, Nigeria.
Authors: Kowal, Jan M.
Published: Institute for Agricultural Research, Samaru, Ahmadu Bello University, 1973Physical Description: 89-101 pages : tables, graphs. ; 23 cm.Holdings: Loading…
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7
An appraisal of drought in 1973 affecting groundnut production in the Guinea and Sudan savanna areas of Nigeria
Authors: Kowal, Jan M.
Published: Institute for Agricultural Research, Samaru Ahmadu Bello University, 1974Physical Description: 149-164 pages : illustrations ; 24 cm.Holdings: Loading…
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8
An assessment of aridity and the severity of the 1972 drought in northern Nigeria and neighbouring countries
Authors: Kowal, Jan M.
Published: Institute for Agricultural Research, Samaru, Ahmadu Bello University, 1974Physical Description: 145-158 pages : illustrations ; 24 cm.Holdings: Loading…
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9
Study of soil surface crusts in the loess plain soils of northern Nigeria.
Authors: Kowal, Jan M.
Published: Ahmadu Bello University, 1974Physical Description: 93-100 pages : illustrations, tables ; 23 cm.Holdings: Loading…
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10
Usefulness of ridge cultivation in Nigerian agriculture
Authors: Kowal, Jan M.
Published: Institute of Agricultural Research, Samaru, Ahmadu Bello University, 1974Physical Description: 136-137 pages : illustrations ; 27 cm.Holdings: Loading…
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11
A simple device for analyzing the energy load and intensity of rainstorms
Authors: Kowal, Jan M.
Published: Institute of Agricultural Research, Samara Ahmadu Bello University, 1974Physical Description: 271-280 pages : illustrations tables, diagrams ; 22 cm.Holdings: Loading…
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12
Water resources and dry matter production for livestock in northern Nigeria
Authors: Kowal, Jan M.
Published: Institute for Agricultural Research, Samaru, Ahmadu Bello University, 1975Physical Description: 339-351 pages : folded maps ; 25 cm.Holdings: Loading…
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13
Cotton production in northern states of Nigeria in relation to water availability and crop water use
Authors: Kowal, Jan M.
Published: Institute for Agricultural Research, Samaru, Ahmadu Bello University, 1975Physical Description: 11-29 pages ; 26 cm.Holdings: Loading…
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14
Rainfall in the sudan savanna region of Nigeria
Authors: Kowal, Jan M.
Published: Institute for Agricultural Research, Samaru, Ahmadu Bello University, 1975Physical Description: 24-28 pages ; 24 cm.Holdings: Loading…
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15
Improving foodcrop production in the Sudan Savanna Savanna zone of northern Nigeria.
Authors: Kassam, A. H.Other Authors: “…Kowal, Jan M.…”
Published: Institute for Agricultural Research, Samaru, Ahmadu Bello University, 1976
Physical Description: 341-347 pages : map, table, diagram ; 30 cm.Holdings: Loading…
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