Establishment and growth of young mango trees in on-farm hillside trails in Trinidad
1999
Roberts-Nkrumah, Laura B.(University of the West Indies, (Trinidad and Tobago). Dept. of Food Production)
Land degradation is a serious consequence of short-term crop cultivation on hillside land. On-farm trials have been established with a small group of small farmers in the Maracas/St. Joseph Watershed of the Northern Range in Trinidad, to encourage them to adopt tree-crop based production systems for greater sustainability. 86 percent of the farmers chose to incorporate mango in their cropping systems. Young trees of cvs. Graham and Starch were planted from October to November, 1997 and data were collected on establishment rate, plant height, trunk girth, canopy height, canopy width, and leaf area index. The results show that inspite of a severe dry season, tree survival rate was more than 85 percent. However, both environmental and socio-economic factors affected the growth of trees. Trees on the lower portion of the slopes have performed better than those on the upper locations. Generally, growth has been slow due to low soil pH and low organic matter content, and to low levels of management related to land tenure status and the need for off-farm employment. Recommendations are presented for better tree performance during early growth among resource-poor farmer.
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