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On-plantation research Tanzania 

 

 

Since the 1960s sisal production had dramatically declined in Tanzania due to decreasing world market prices and management problems at the plantations. In the mid-1980s large scale rehabilitation programmes were initiated to revive sisal production in Tanzania. As part of those programmes we undertook detailed soil surveys of a large number of sisal plantations. The surveys included soil mapping, soil description and land evaluation for alternative crops (e.g. teak, cashew). The soil survey reports and maps showed were to plant which crop, and recommendations included detailed information on crop husbandry practises.  

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An important research theme developed during the soil surveys was to quantify the changes in soil properties as a result of continuous sisal cropping in the absence of nutrient inputs by inorganic or organic fertilisers. The research question was: can the decline in sisal production be explained by the decline in soil fertility? It was found that soil fertility declined had occurred in most soils under continuous sisal cropping but that the rate of decline and the impact on crop production differed between soil types. Soil parent material and length of cropping determined to a large extent the resilience of the soil and the decline in soil fertility. This research was conducted in close cooperation with the plantation management and was funded by British and Swiss plantation owners. The results have been communicated in workshops whilst in Tanzania and a series of publications in refereed journals.  

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Publications

Hartemink, A.E. 1997  Soil fertility decline in some Major Soil Groupings under permanent cropping in Tanga Region, Tanzania. Geoderma 75: 215-229

Hartemink, A.E. 1997  Input and output of major nutrients under monocropping sisal in Tanzania. Land Degradation and Development 8: 305-310

Hartemink, A.E., J.F. Osborne & Ph.A. Kips 1996  Soil fertility decline and fallow effects in Ferralsols and Acrisols of sisal plantations in Tanzania. Experimental Agriculture 32:173-184

Hartemink A.E. & J.F. Wienk 1995  Sisal production and soil fertility decline in Tanzania. Outlook on Agriculture 24: 91-96

Hartemink, A.E. & E.M. Bridges 1995  The influence of parent material on soil fertility degradation in the coastal plain of Tanzania. Land Degradation and Rehabilitation 6: 215-221

Hartemink, A.E. & A.J. van Kekem 1994  Nutrient depletion under hybrid sisal cultivation in Tanzania. Soil Use and Management 10: 103-107

Hartemink A.E. 1991  Soils of Mabogo Estate (Tanzania) and their suitability for sisal and alternative crops. Detailed soil survey report. 51 pp. Chillington Corporation, London.

Hartemink, A.E. 1991  Soils of Bamba estate (Tanzania) and their suitability for sisal, teak and cashew. Detailed soil survey report. 73 pp. Chillington Corporation, London.

Hartemink, A.E. 1991  Soils of Lanconi estate (Tanzania) and their suitability for sisal, teak and cashew. Detailed soil survey report. 69 pp. Chillington Corporation, London.

Hartemink A.E. 1990  Soils of Kwalukonge Estate (Tanzania) and their suitability for sisal and alternative crops. Detailed soil survey report. 46 pp. Chillington Corporation, London.

Hartemink A.E. 1990  Soils of Mazinde Estate (Tanzania) and their suitability for sisal and alternative crops. Detailed soil survey report. 39 pp. Chillington Corporation, London.

Hartemink, A.E. 1989  Soil survey of the Mazinde Group. 18 pp. Chillington Corporation, London

Hartemink, A.E. & S.M. Cleveringa 1988  Soils of Mwera Estate (Tanzania) and their potential for hybrid sisal cultivation. Detailed Soil Survey report. 60 pp. National Soil Service, Tanga.

Cleveringa, S.M. & A.E. Hartemink 1988  Soils of Pongwe Estate (Tanzania) and their potential for hybrid sisal cultivation. Detailed Soil Survey report. 55 pp. National Soil Service, Tanga.

Hartemink, A.E. & S.M. Cleveringa 1988  Soils of Kwamdulu Estate (Tanzania) and their potential for hybrid sisal cultivation. Detailed Soil Survey report. 54 pp. National Soil Service, Tanga.

Hartemink, A.E., S.M. Cleveringa, G.W. van Barneveld & A. Brom 1988 The potential for hybrid sisal cultivation of four Amboni Estates in Tanga Region. Miscellaneous publications. 31 pp. National Soil Service, Tanga.

     

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