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166. Mapping, in connection with conservation planning for the future, was started.
(ii) Urambo Region
167. This Region has been comparatively well reconnoitred and surveyed for land-usage, and Soil Conservation Officers were able to make a land-use survey for land-clearing, agriculture and soil conservation. This helps in the production of good maps for the guidance of the land-clearing staff.
168. Provision was made for the leaving of belts of trees by each field, as water and wind erosion protective measures.
(iii) Southern Province
169. The high intensity of the rainfall indicates the need for careful con- servation measures in this Region-measures designed to drain water off the arable lands, with minimum soil wash and wastage.
170. Wind erosion is not likely to be a serious factor but the strips of natural vegetation that are being left around the fields and similar strips along the drainage channels will reduce this.
171. Plans were made for replacing the natural vegetation, along the roads, by oil-bearing trees and shrubs likely to serve the double purpose of conser- vation and of providing a crop.
Forestry
Surveys of Utilisable Timber
172. Surveys indicated that there is a moderate amount of utilisable timber in the Urambo Region and that, while there is a very fair amount in the Southern Province, its distribution is patchy.
173. Important species are:-
Pterocarpus spp. (Mninga)
Afzelia quanzensis (Rhodesian Mahogany)
Dalbergia melanoxylon (East African Ebony)
Acacia pallens
Afrormosia angolensis
Burkea africana
Diospyros mespiliformis
Erythrophloeum africanum
A
174. Because of their usefulness after adequate drying and impregnation, the various Brachysteiga spp. and Isoberlinia globiflora were studied. very fair proportion was observed of large, well-shaped boles of these hitherto little used species.
Agronomic Matters: Kongwa Region
175. (a) Varieties and Fertilisers
Groundnuts of the following varieties were sown on acreages thus:
Unit 1 Unit 2 Unit 3
...
Natal
Spanish
Virginia
Valencia
Common
Bunch
Bunch
4,850
200
2,488
2,675
2,926
8,371
3,405
...
10,859
6,080
7,776
200
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AB