THE MANUFACTURE OF RAYON PULP IN SOUTH AFRICA |
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| Authors: | M Cantacuzene |
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| Institution: | S.A. Cellulose Corporation (Pty.) Ltd , Address given at the Sixth Annual Congress of S.A.T.G.A. |
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| Abstract: | The utilization of plantation soils for the growing of pine pulpwood is discussed. Different tree species make different demands on soil fertility and all tree species grown in S. Africa for commercial purposes also show a fairly wide range ofadaptability to soil fertility and site quality. Generally plantation soils in this country have reasonable soil depth, good drainage and fair moisture supply but soil fertility levels in higher rainfall areas are often low. Fertilization in the nursery, at planting time and at an age of 7–10 years of the stand could increase pulpwood yields by about 50 per cent. Fertilization, cultivation thinning and other silvicultural work which promotes tree growth, all seem to have a similar influence on timber quality. Generally improved rate of growth results in higher timber yields both in total volume and total cellulose yield. Land available for forestry purposes is limited in this country and it is of great economic and even strategic importance that this land be fully exploited. |
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