Browsing by Author "Mtakwa, P. W."
Now showing 1 - 10 of 10
- Results Per Page
- Sort Options
Item Combining ability and heterosis of selected grain and forage dual purpose sorghum genotypes(Canadian Center of Science and Education) Chikuta, Sally; Odong, Thomas; Kabi, Fred; Rubaihayo, Patrick; BomBom, A.; Okori, P.; Gibson, P.; Rubaihayo, P.; Kiryowa, M.; Ddamulira, G.; Karuma, A. N.; Mtakwa, P. W.; Amuri, N.; Gachene, C. K. K.; Gicheru, Patrick; Mhike, X.; Tesfahun, Kassie Girma; Magorokosho, C.; Chikobvu, Shamiso; Msongaleli, B.; Rwehumbiza, F. B. R.; Tumbo, S. D.; Kihupi, N.Item Effect of conservational tillage on soil loss and plant nutrient status on vegetable yield, Northern slopes of Uluguru Mountains, Morogoro, TanzaniaMsita, H. B.; Mtakwa, P. W.; Kilasara, M.; Kimaro, D. N.; Msanya, B. M.; Ndyetabula, D. K.; Deckers, J. A.; Poesen, J.Item Effectiveness of selected soil conservation practices on soil erosion control and crop yields in the Usambara mountains, Tanzania(SCIENCEDOMAIN international) Mwango, S. B.; Msanya, B. M.; Mtakwa, P. W.; Kimaro, D. N.; Deckers, J.; Poesen, J.; Massawe, I.; Samwel, J.Item Effectiveness of selected soil conservation practices on soil erosion control and crop yields in the Usambara mountains, Tanzania(SCIENCEDOMAIN international, 2014-12-16) Mwango, S. B.; Msanya, B. M.; Mtakwa, P. W.; Kimaro, D. N.; Deckers, J.; Poesen, J.; Massawe, I.; Samwel, J.Indigenous soil conservation measures such as miraba have been widely used in Usambara Mountains for controlling soil erosion but with little success. On-farm runoff experiments were set from 2011–2014 on Acrisols in Majulai and Migambo villages with contrasting agro-ecological conditions in the Usambara Mountains, Tanzania. The aim was to investigate the effectiveness of miraba and miraba with various mulching materials in reducing runoff, soil and nutrient losses and improving productivity of maize (Zea mays) and beans (Phaseolus vulgaris). Results show that mean annual runoff coefficients (mm mm-1) ranged from 0.72 for cropland with no soil conservation measure (control) to 0.15 for cropland with miraba and Tithonia (Tithonia diversifolia) mulching in Majulai village and respectively from 0.68 to 0.13 in Migambo village. Soil loss was significantly (P = .05) higher under control than under miraba with either Tughutu (Vernonia myriantha) or Tithonia mulching e. g. 184 vs. 20 in Majulai and 124 vs. 8 Mg ha-1 year-1 in Migambo village in 2012. The Pfactors were significantly (P = .05) higher under miraba sole than under miraba with mulching in Majulai village (0.18 vs. 0.11) and in Migambo village (0.10 vs. 0.05).The annual nutrient losses in kg ha-1yr-1 were significantly (P = .05) higher under control than under miraba with mulching 367 vs. 37 total N, 0.8 vs. 0.1 P and 14 vs. 4 K for Majulai village; 474 vs. 26 total N, 0.7 vs. 0.1 P and 20 vs. 1.2 K for Migambo village in 2012. Maize and bean yields were significantly (P = .05) higher under miraba with Tughutu mulching than under control (e.g. 2.0 vs. 0.7 Mg ha-1 for maize in Majulai in 2012). Thus miraba with Tughutu mulching is more effective in improving crop yields than miraba with Tithonia and miraba sole.Item Impact of indigenous-based interventions on land conservation: A case study of a soil conservation and agroforestry project, Arumeru district, Tanzania(John Wiley & Sons, Ltd.) Kajembe, G. C.; Julius, F.; Nduwamungu, J.; Mtakwa, P. W.; Nyange, D. A.Item Impact of indigenous-based interventions on land conservation: A case study of a soil conservation and agroforestry project, Arumeru district, Tanzania(John Wiley & Sons, Ltd., 2005) Kajembe, G. C.; Julius, F.; Nduwamungu, J.; Mtakwa, P. W.; Nyange, D. A.Land degradation has been identified as a serious problem in Tanzania since the 1920s. Among the factors normally cited as contributing to land degradation are deforestation, overgrazing and inappropriate farming practices. Several attempts by the government to arrest the problem have been based on top-down approaches. Indigenous-based interventions are among the alternative practices adopted by the Soil Conservation and Agroforestry Project in Arumeru District, Tanzania. The main objective of this study was to assess the impact of the indigenous-based interventions on land conservation. More specifically the study intended to assess farmers’ perception of land degradation, the adoption rate of indigenous-based interventions, the impact of those interventions, and lastly the sustainability of those interventions. Data for the study were collected through Participatory Rural Appraisal (PRA) techniques and a questionnaire survey. The Statistical Package for Social Sciences (SPSS 1 ) was used to analyse quantitative data and Content and Structural-Functional Analyses were used for qualitative data. The study found that the rate of land degradation was perceived by respondents to be rather severe. The study also revealed that indigenous-based interventions, which require minimal labour and capital, have been highly adopted by many farmers while labour/capital intensive ones have been taken up by fewer farmers. In general, indigenous-based interventions appear to have eased farm operations and contributed towards increased crop yield, improved soil fertility and increased income. Success in some of the indigenous interventions warrants their wider promotion beyond the project area. Copyright # 2005 John Wiley & Sons, Ltd.Item Major factors influencing the occurrence of landslides in the northern slopes of the Uluguru mountains, TanzaniaKilasara, M.; Mtakwa, P. W.; Poesen, J.; Deckers, J. N.Item Soil acidity management by farmers in the Kenya highlandsMuindil, E. M.; Semu, E.; Mrema, J. P.; Mtakwa, P. W.; Gachene, C. K.Item Soil acidity management by farmers in the Kenya Highlands(Sokoine University of Agriculture, Tanzania.) E. M. Muindi, E. M.; Semu, E.; Mrema, J. P.; Mtakwa, P. W.; Gachene, C. K.Item Soil morphology, physico-chemical properties and classification of typical soils of Mwala district, Kenya(International Journal of Plant & Soil Science) Karuma, A. N.; Gachene, K.; Charles, K.; Msanya, B. M.; Mtakwa, P. W.; Amuri, N.; Gicheru, P. T.