Your search found 5 records
1 Singh, G.; Dagar, J. C. 2005. Greening sodic lands: Bichhian model. Karnal, India: Central Soil Salinity Research Institute. 51p. (CSSRI Technical Bulletin No. 2/2005)
Soil properties ; Biomass ; Forest trees ; Fruit trees ; Grasses ; Irrigation requirements ; Land use ; Silviculture
(Location: IWMI-HQ Call no: 631.7.5 G00 SIN Record No: H038815)
2 Qadir, Manzoor; Tubeileh, A.; Akhtar, J.; Larbi, A.; Minhas, P. S.; Khan, M. A. 2008. Productivity enhancement of salt-affected environments through crop diversification. Land Degradation and Development, 19:429-453.
Soil salinity ; Sodic soils ; Water quality ; Salinity ; Irrigation water ; Biofuels ; Bioenergy ; Agroforestry ; Crops ; Diversification ; Feed crops ; Fruit trees
Call no: e-copy only Record No: H041502)
3 Tubeileh, A.; Bruggeman, A.; Turkelboom, F. 2016. Water-harvesting designs for fruit tree production in dry environments. Agricultural Water Management, 165:190-197. [doi: https://doi.org/10.1016/j.agwat.2015.11.006]
Water harvesting ; Fruit trees ; Crop production ; Olives ; Water storage ; Arid zones ; Soil profiles ; Soil moisture ; Moisture content ; Sloping land ; Precipitation ; Rain ; Catchment areas / Syria / Mediterranean Region
(Location: IWMI HQ Call no: e-copy only Record No: H047630)
(0.70 MB)
Water scarcity and increasing demand coupled with climate change require maximizing the use of available resources. Water harvesting (WH) systems are currently being used in many areas to sustain crops and increase water productivity. This study investigated the effect of three treatments (S15: 50-m2 catchment area with 15% slope, S8: 50-m2 catchment area with 8% slope, and L8: 70-m2 catchment area with 8% slope) on the amount of water harvested in tree basin for young olive (Olea europaea L.) trees from November 2002 to July 2003. Soil moisture was monitored weekly during the rainy season and bi-weekly afterwards. To determine moisture changes in the catchment and target areas and amount of water harvested (in liters) for each tree, volumetric soil moisture content was measured at three or four points along the slope using a neutron probe down to a maximum depth of 120 cm, as soil depth allowed. WH structures increased soil moisture content in the rootzone compared to the catchment area. The rainfall threshold for runoff generation was less than 15 mm. Land slope was more important than micro-catchment size for increasing the amount of water harvested. Compared to the 8% slope, the 15% slope resulted in larger harvested amounts for small storms, but the two were comparable when storms were large. The large micro-catchment size resulted in higher amounts of harvested water only in the presence of storms greater than 26 mm. After adding the amounts lost by evapotranspiration, the net amount of water harvested in the tree basin of each tree for the 2002–2003 rainy season reached 722 and 688 l (or 361 and 344 mm) for treatments S15 and S8, respectively. Deeper soil profiles (i.e., >90 cm) were important to ensure longer storage periods. By early July, soil moisture content in the tree basin for treatments S15, L8 and S8 was still higher by 38, 13, and 5% respectively, than the levels recorded at the onset of the experiment. WH increased soil moisture content during the spring and early summer, a critical period for olive production.
4 Biazin, B.; Haileslassie, Amare; Zewdie, T.; Mekasha, Y.; Gebremedhin, B.; Fekadu, A.; Shewage, T. 2018. Smallholders’ avocado production systems and tree productivity in the southern highlands of Ethiopia. Agroforestry Systems, 92(1):127-137. [doi: https://doi.org/10.1007/s10457-016-0020-2]
Agricultural production ; Fruit trees ; Avocados ; Smallholders ; Farmers ; Highlands ; Agroforestry ; Harvesting ; Canopy ; Coffee industry ; Land ownership ; Households / Ethiopia
(Location: IWMI HQ Call no: e-copy only Record No: H047783)
Ethiopia is one of the top five avocado producers in sub-Saharan Africa. Despite increasing recognition for its nutritional value and economic importance, information on smallholder avocado production systems across agro-climatic zones and determinants for tree productivity are literally lacking. Therefore, the objectives of this study were to examine the determinants for avocado tree holdings by smallholder farmers and investigate the effect of avocado production systems and management conditions on fruit yield by individual avocado trees in Southern Ethiopia. Data required for the study was collected through a combination of focus group discussions, household survey and field tree inventories. The data was analyzed using descriptive statistics, analyses of variance and linear regression methods using statistical software for social sciences (SPSS version 20). In the study region, avocado is mainly grown as an integral component of the coffee- and enset-based agroforestry systems. The number of avocado trees owned by smallholder producers was related to district, sex of household head, age of household head, educational status, land holding size, pest and disease damage and access to extension services. Productivity of avocado was significantly (p < 0.05) different between production systems. The highest avocado fruit yield was observed from trees grown in the coffee and enset-based agroforestry systems. However, the smallholder producers complain that the yields of coffee and enset grown under avocado trees could be very low. The total height of avocado trees was significantly (p < 0.05) different across the different production systems. The mean heights of matured (21–25 years old) avocado trees were 17.57 ± 0.86 m (±SE; N = 20) under coffee-based agroforestry system and 14.93 ± 1.24 m when grown as individual trees around homes. Proper extension support is needed to disseminate improved production techniques: encompassing proper tree spacing, tree training, pruning, soil amendments, growing optimum number of trees for successful pollination and improved harvesting.
5 Karg, H. 2018. Forestry. In Karg, H.; Drechsel, Pay (Eds.). Atlas of West African urban food systems: examples from Ghana and Burkina Faso. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE). pp.34-35.
Urban forestry ; Forest reserves ; Street trees ; Fruit trees ; Woodlands / West Africa / Ghana / Tamale / Nyohini Forest Reserve / Agric Forest Reserve
(Location: IWMI HQ Call no: e-copy only Record No: H049020)
(560 KB)
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