MANGO AND CITRUS TRESS GROWN AS CASHCROPS AND FOR SOIL FERTILITY IMPROVEMENT [Uganda]
- Creation:
- Update:
- Compiler: betty adoch
- Editors: JOY TUKAHIRWA, Kamugisha Rick Nelson
- Reviewers: Drake Mubiru, Nicole Harari, Stephanie Jaquet, Udo Höggel
Gwoko nyig yen igang
technologies_2319 - Uganda
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Expand all Collapse all1. General information
1.2 Contact details of resource persons and institutions involved in the assessment and documentation of the Technology
Key resource person(s)
land user:
Okello Vincent
0782954875
okellovincent7@gmail.com
Pagwari Fruit Farmers Association
Pader district, Acoro Sub-County , Acoro parish, Pagwari East village
Uganda
Name of project which facilitated the documentation/ evaluation of the Technology (if relevant)
Scaling-up SLM practices by smallholder farmers (IFAD)Name of the institution(s) which facilitated the documentation/ evaluation of the Technology (if relevant)
CDE Centre for Development and Environment (CDE Centre for Development and Environment) - Switzerland1.3 Conditions regarding the use of data documented through WOCAT
When were the data compiled (in the field)?
09/05/2017
The compiler and key resource person(s) accept the conditions regarding the use of data documented through WOCAT:
Yes
1.4 Declaration on sustainability of the described Technology
Is the Technology described here problematic with regard to land degradation, so that it cannot be declared a sustainable land management technology?
No
2. Description of the SLM Technology
2.1 Short description of the Technology
Definition of the Technology:
Different varieties of mangoes such as Banganapalle, Alphonso, Kesar, Haden, Bombay, Kent, Keitt, oranges such as Washington Navel, Valencies, Tangarine, jack fruits and avacados are grown for purposes of household income and soil fertility improvement.
2.2 Detailed description of the Technology
Description:
Home fruit tree groves of grafted mango (mangifera indica) and citrus (citrus aurantium) is a farming practice that farmers practice in Northern Uganda to diversify their economic activity, for soil fertility improvement and household income.
Northern Uganda has tropical savanna climate which receives moderate amount of rainfall ranging from 750-1000mm per annum. The soils are moderately fertile with less organic matters coupled with soil erosion, which leads to low crop productions hence low incomes. The moderate rainfall is also unreliable which makes the region to experience drought. Farmers grow fruits as an alternative source of income.
This land user generates over 90% of his household income from fruit growing. The planted fruit trees increase the organic matter content in the soil when dry leaves decompose, rooting prevents soil erosion, pruned brunches are a source of fuel wood and trees acts as wind breaks. Major fruits grown include jack fruits, grafted mangoes, oranges and avocados.
For all these fruits, seeds are first planted in a nursery bed for a period for about two months with the following required inputs: hoes, pangas, spades, wheelbarrows, and shovels. Afterwards, transplanting into the gardens is done. Selection and clearing of the field is done and the planting holes are marked. Excavation is done in accordance to the slope direction: the top soil is put on the hillward side of the planting hole then the sub-soil is put on the downward side of the planting hole. The planting holes are dug in a square shape at 60*60 cm. Composite manure is mixed with top soil and applied into the hole to speed up the seedling establishment and to enhance growth. When planting, the hole is not fully filled but ends 5 cm below the surface so to enable water harvesting, moisture retentions and infiltration. This ensures ample soil moisture and water supply to plants.
The spacing for avocados is 8 × 8 m (65 seedlings/acre), jack fruits is 10 × 10 m (44 seedlings/acre), mangoes 10 × 10 m (44 seedlings/acre) and oranges 4 × 5 m (200 seedlings/acre). After planting, mulching is done by saw dust, kitchen waste like groundnut husks, vegetables and so on. 75 mangoes, 150 oranges, 20 avocados, 20 jack fruits and 4 grapes trees are spread evenly over the planting area. To realize maximum production, the land user needs to have constant water for irrigation.
On the other side, fruit tree growing has brought negative feelings from neighbors who don't promote this practice. Fruit farmers' lifestyle has changed due to revenues realised from growing fruit trees. To maintain this technology, weeding, pruning and creating fire lines during dry seasons to protect the farm is very critical . The technology is highly susceptible to pests and diseases that may require support from the local extension worker from time to time to be able to obtain high yields.
2.3 Photos of the Technology
General remarks regarding photos:
Fruit trees protect the soil from environmental degradation and its effects such as soil erosion and landslides.
2.4 Videos of the Technology
Date:
19/05/2017
Location:
Pader District, Acoro parish, Pagwari East village.
Name of videographer:
Betty Adoch
2.5 Country/ region/ locations where the Technology has been applied and which are covered by this assessment
Country:
Uganda
Region/ State/ Province:
Northern Uganda.
Further specification of location:
Pader District, Acoro parish,Pagwari East village.
Comments:
GPS point indicating the land user fruits garden
Map
×2.6 Date of implementation
Indicate year of implementation:
2013
2.7 Introduction of the Technology
Specify how the Technology was introduced:
- through land users' innovation
Comments (type of project, etc.):
Land user needs to generate income.
3. Classification of the SLM Technology
3.1 Main purpose(s) of the Technology
- improve production
- adapt to climate change/ extremes and its impacts
- create beneficial economic impact
3.2 Current land use type(s) where the Technology is applied
Cropland
- Annual cropping
- Tree and shrub cropping
Forest/ woodlands
Tree plantation, afforestation:
- Mixed varieties
Products and services:
- Fruits and nuts
If land use has changed due to the implementation of the Technology, indicate land use before implementation of the Technology:
The land was use for brick making
3.3 Further information about land use
Water supply for the land on which the Technology is applied:
- rainfed
Comments:
Drip irrigation is done during dry seasons
Number of growing seasons per year:
- 1
Livestock density (if relevant):
Cows: 5, Goats:7. Improved breeds of goat and cattle which are high yielding
3.4 SLM group to which the Technology belongs
- improved plant varieties/ animal breeds
- home gardens
3.5 Spread of the Technology
Specify the spread of the Technology:
- evenly spread over an area
If the Technology is evenly spread over an area, indicate approximate area covered:
- < 0.1 km2 (10 ha)
Comments:
The fruits gardens covers 2 acres of land.
3.6 SLM measures comprising the Technology
vegetative measures
- V1: Tree and shrub cover
management measures
- M1: Change of land use type
Comments:
Fruit growing promotes soil conversation.
3.7 Main types of land degradation addressed by the Technology
soil erosion by water
- Wt: loss of topsoil/ surface erosion
soil erosion by wind
- Et: loss of topsoil
chemical soil deterioration
- Cn: fertility decline and reduced organic matter content (not caused by erosion)
Comments:
Fruit growing conserves the environment by preventing tree cutting.
3.8 Prevention, reduction, or restoration of land degradation
Specify the goal of the Technology with regard to land degradation:
- reduce land degradation
Comments:
The area initially was severly degraded by brick making work but after putting it under fruit growing, it became very fertile.
4. Technical specifications, implementation activities, inputs, and costs
4.1 Technical drawing of the Technology
Author:
Betty Adoch
Date:
19/05/2017
4.2 Technical specifications/ explanations of technical drawing
The fruit trees are planted on a generally flat average land size of 2 acres of land with following spacing: mangoes 10X10msq, jack fruits 10X10msq because it forms a big canopy, oranges 5X5 msq.
4.3 General information regarding the calculation of inputs and costs
Specify how costs and inputs were calculated:
- per Technology area
Indicate size and area unit:
2 acres
other/ national currency (specify):
UGX
Indicate exchange rate from USD to local currency (if relevant): 1 USD =:
3500.0
Indicate average wage cost of hired labour per day:
3000 UGX
4.4 Establishment activities
Activity | Type of measure | Timing | |
---|---|---|---|
1. | Site clearing for nursery bed | Agronomic | dry season |
2. | Raising the nursery | Agronomic | dry season |
3. | Digging planting holes | Agronomic | dry season |
4. | Applying composite manure | Agronomic | dry season |
5. | Transplanting at 15 to 30cm seedling high | Agronomic | onset of rain |
Comments:
Different fruit species have different nursery beds
4.5 Costs and inputs needed for establishment
Specify input | Unit | Quantity | Costs per Unit | Total costs per input | % of costs borne by land users | |
---|---|---|---|---|---|---|
Labour | Site clearing for nursery bed | Meters | 2.0 | 10000.0 | 20000.0 | 100.0 |
Labour | Raising the nursery | Meters | 2.0 | 10000.0 | 20000.0 | 100.0 |
Labour | Transplanting | Acres | 2.0 | 50000.0 | 100000.0 | 100.0 |
Labour | Pitting for fruit tree planting | Acres | 2.0 | 50000.0 | 100000.0 | 100.0 |
Equipment | Pangas | Pieces | 10.0 | 5000.0 | 50000.0 | 100.0 |
Equipment | Hoes | Pieces | 15.0 | 10000.0 | 150000.0 | 100.0 |
Equipment | Axes | Pieces | 5.0 | 10000.0 | 50000.0 | 100.0 |
Equipment | Wheelbarrows | Pieces | 4.0 | 95000.0 | 380000.0 | 100.0 |
Plant material | String | Pieces | 4.0 | 5000.0 | 20000.0 | 100.0 |
Plant material | Dipper | Pieces | 4.0 | 45000.0 | 180000.0 | 100.0 |
Plant material | Watering can | Pieces | 2.0 | 25000.0 | 50000.0 | 100.0 |
Plant material | Spray pump | Pieces | 4.0 | 75000.0 | 300000.0 | 100.0 |
Construction material | Bamboo | Pieces | 10.0 | 10000.0 | 100000.0 | 100.0 |
Construction material | Dry grass | Bundles | 5.0 | 3000.0 | 15000.0 | 100.0 |
Total costs for establishment of the Technology | 1535000.0 |
Comments:
The technology is technically easy to maintain once established and can be replicated by other land users.
4.6 Maintenance/ recurrent activities
Activity | Type of measure | Timing/ frequency | |
---|---|---|---|
1. | Weeding | Agronomic | after every 3 months |
2. | Pest control | Agronomic | dry season use cow dung and driny use season pesticide |
3. | Stray animal control | Agronomic | dry season |
4. | Thieves control | Agronomic | rainy season |
5. | Prunning branches | Agronomic | rainy season |
6. | Buying pesticides | Agronomic | rainy season |
7. | Transportation to market | Agronomic | season of harvest |
8. | Buying mulching materials | Agronomic | onset of rain |
4.7 Costs and inputs needed for maintenance/ recurrent activities (per year)
Specify input | Unit | Quantity | Costs per Unit | Total costs per input | % of costs borne by land users | |
---|---|---|---|---|---|---|
Labour | Hired labour | Man day | 4.0 | 3000.0 | 12000.0 | 100.0 |
Equipment | Spray pump | Piece | 4.0 | 75000.0 | 300000.0 | 100.0 |
Equipment | Irrigation during dry season | Litres | 10000.0 | 200.0 | 2000000.0 | 100.0 |
Equipment | Syringe pipe | Piece | 1.0 | 2500.0 | 2500.0 | 100.0 |
Plant material | Seedings | Pieces | 269.0 | 3500.0 | 941500.0 | 100.0 |
Plant material | Composite manures | Wheelbarrows | 1.0 | 5000.0 | 5000.0 | 100.0 |
Plant material | Stringes for making holes in a stright line | Rolls | 4.0 | 5000.0 | 20000.0 | 100.0 |
Plant material | Peg for setting holes | Boundle | 1.0 | 10000.0 | 10000.0 | 100.0 |
Fertilizers and biocides | Pesticides (dythen m45) | kg | 1.0 | 40000.0 | 40000.0 | |
Total costs for maintenance of the Technology | 3331000.0 |
Comments:
The land user has knowledge on agronomic practices.
4.8 Most important factors affecting the costs
Describe the most determinate factors affecting the costs:
High costs of labor
High transportation cost
Purchase of pesticides
5. Natural and human environment
5.1 Climate
Annual rainfall
- < 250 mm
- 251-500 mm
- 501-750 mm
- 751-1,000 mm
- 1,001-1,500 mm
- 1,501-2,000 mm
- 2,001-3,000 mm
- 3,001-4,000 mm
- > 4,000 mm
Specify average annual rainfall (if known), in mm:
950.00
Specifications/ comments on rainfall:
Heavy rains in April, May, August and September
Indicate the name of the reference meteorological station considered:
Pader weather station
Agro-climatic zone
- sub-humid
Savanna climate
5.2 Topography
Slopes on average:
- flat (0-2%)
- gentle (3-5%)
- moderate (6-10%)
- rolling (11-15%)
- hilly (16-30%)
- steep (31-60%)
- very steep (>60%)
Landforms:
- plateau/plains
- ridges
- mountain slopes
- hill slopes
- footslopes
- valley floors
Altitudinal zone:
- 0-100 m a.s.l.
- 101-500 m a.s.l.
- 501-1,000 m a.s.l.
- 1,001-1,500 m a.s.l.
- 1,501-2,000 m a.s.l.
- 2,001-2,500 m a.s.l.
- 2,501-3,000 m a.s.l.
- 3,001-4,000 m a.s.l.
- > 4,000 m a.s.l.
Indicate if the Technology is specifically applied in:
- not relevant
5.3 Soils
Soil depth on average:
- very shallow (0-20 cm)
- shallow (21-50 cm)
- moderately deep (51-80 cm)
- deep (81-120 cm)
- very deep (> 120 cm)
Soil texture (topsoil):
- medium (loamy, silty)
Soil texture (> 20 cm below surface):
- medium (loamy, silty)
Topsoil organic matter:
- medium (1-3%)
If available, attach full soil description or specify the available information, e.g. soil type, soil PH/ acidity, Cation Exchange Capacity, nitrogen, salinity etc.
Loamy, silty soil at the top and deep down there is gravel. Soil pH is neutral and less saline.
5.4 Water availability and quality
Ground water table:
5-50 m
Availability of surface water:
medium
Water quality (untreated):
good drinking water
Is water salinity a problem?
No
Is flooding of the area occurring?
No
Comments and further specifications on water quality and quantity:
Very low water table
5.5 Biodiversity
Species diversity:
- high
Habitat diversity:
- medium
5.6 Characteristics of land users applying the Technology
Sedentary or nomadic:
- Sedentary
Market orientation of production system:
- mixed (subsistence/ commercial
Off-farm income:
- less than 10% of all income
Relative level of wealth:
- average
Individuals or groups:
- individual/ household
Level of mechanization:
- animal traction
Gender:
- women
- men
Age of land users:
- middle-aged
Indicate other relevant characteristics of the land users:
The land user is a typical farmer who is contented with his lifestyle as a fruit grower due to the income derived from sale of fruits.
5.7 Average area of land owned or leased by land users applying the Technology
- < 0.5 ha
- 0.5-1 ha
- 1-2 ha
- 2-5 ha
- 5-15 ha
- 15-50 ha
- 50-100 ha
- 100-500 ha
- 500-1,000 ha
- 1,000-10,000 ha
- > 10,000 ha
Is this considered small-, medium- or large-scale (referring to local context)?
- small-scale
Comments:
The land user bought the land from the community members.
5.8 Land ownership, land use rights, and water use rights
Land ownership:
- individual, titled
Land use rights:
- individual
Water use rights:
- communal (organized)
Comments:
The land user has fenced his land and put marked stones.
5.9 Access to services and infrastructure
health:
- poor
- moderate
- good
education:
- poor
- moderate
- good
technical assistance:
- poor
- moderate
- good
employment (e.g. off-farm):
- poor
- moderate
- good
markets:
- poor
- moderate
- good
energy:
- poor
- moderate
- good
roads and transport:
- poor
- moderate
- good
drinking water and sanitation:
- poor
- moderate
- good
financial services:
- poor
- moderate
- good
6. Impacts and concluding statements
6.1 On-site impacts the Technology has shown
Socio-economic impacts
Production
crop production
Comments/ specify:
Due to the litter from the leaves, increased soil fertility leading to increased production.
crop quality
Comments/ specify:
Due to the nutrients from the soil.
fodder production
Comments/ specify:
Especially from the jack fruits wastes
risk of production failure
Comments/ specify:
Increased level of nutrients in the soil.
product diversity
Comments/ specify:
Because of the different fruit trees species planted.
production area
Comments/ specify:
The land user recently acquired additional plot of land (0.5 acres) from the sale of fruit trees.
land management
Comments/ specify:
Fruit trees reduce soil erosion and increase soil fertility due to leaves litter.
Income and costs
expenses on agricultural inputs
Comments/ specify:
Fruit trees dont require alot of inputs once established; minimal costs for reducing pests and diseases; minimized by the role of extension workers during trainings.
farm income
Comments/ specify:
From the sale of fruits and reduced expenses on farm in puts
diversity of income sources
Comments/ specify:
From the sale of diverse fruit types (mangoes, oranges, jack fruits and others)
workload
Comments/ specify:
Only labour for maintenance and monitoring against thieves
Socio-cultural impacts
food security/ self-sufficiency
Comments/ specify:
Income from sale of fruits is used to buy other household income.
health situation
Comments/ specify:
Daily portion of fruits within diet.
land use/ water rights
Comments/ specify:
Community bye-laws on controlled grazing and encroachment were put in place.
community institutions
Comments/ specify:
Local bye-law committee (LBC) was put in place and supported by the Sub-County and District Council.
Bye-law on controlled grazing and encroachment passed at Sub-County Level.
SLM/ land degradation knowledge
Comments/ specify:
Trainings conducted by extension workers and fellow champion farmers, also integrating exposure learning events.
conflict mitigation
Comments/ specify:
The presence of the local bye-law committee and bye-laws reduced conflicts: no encroachment, no grazing on fruit gardens and no thieves.
situation of socially and economically disadvantaged groups
Comments/ specify:
Integrating people with disabilities (PWDs) in fruit tree growing trainings and exposure learning events.
Ecological impacts
Water cycle/ runoff
surface runoff
Comments/ specify:
Planted fruit trees control soil run off/soil erosion.
Soil
soil cover
Comments/ specify:
Due to vegetation litter, plant growth and reduced cutting of trees.
soil loss
Comments/ specify:
Due to vegetation litter, plant growth and reduced cutting of trees.
soil accumulation
Comments/ specify:
Due to vegetation litter, plant growth and reduced cutting of trees
soil compaction
Comments/ specify:
Due to vegetation litter, plant growth and reduced cutting of trees
soil organic matter/ below ground C
Comments/ specify:
Due to vegetation litter, plant growth and reduced cutting of trees
Climate and disaster risk reduction
landslides/ debris flows
Comments/ specify:
Due to planted fruit trees and soil&water conservation bye-law on tree planting.
drought impacts
Comments/ specify:
Planted trees reduce drought.
fire risk
Comments/ specify:
Due to firelines to control bush burning during dry season.
6.2 Off-site impacts the Technology has shown
damage on neighbours' fields
Comments/ specify:
Due to presence of strict community bye-laws.
Comments regarding impact assessment:
The technology is rewarding in the short, medium and long term and can be replicated by any farmer in any climatic region especially tropical regions.
6.3 Exposure and sensitivity of the Technology to gradual climate change and climate-related extremes/ disasters (as perceived by land users)
Gradual climate change
Gradual climate change
Season | Type of climatic change/ extreme | How does the Technology cope with it? | |
---|---|---|---|
annual temperature | decrease | very well | |
seasonal temperature | wet/ rainy season | decrease | very well |
annual rainfall | increase | well | |
seasonal rainfall | wet/ rainy season | increase | very well |
Climate-related extremes (disasters)
Climatological disasters
How does the Technology cope with it? | |
---|---|
drought | very well |
forest fire | very well |
land fire | moderately |
Hydrological disasters
How does the Technology cope with it? | |
---|---|
landslide | very well |
Comments:
This technology is drought resistant and manageable by any farmer who has the interest to practice it.
6.4 Cost-benefit analysis
How do the benefits compare with the establishment costs (from land users’ perspective)?
Short-term returns:
slightly positive
Long-term returns:
very positive
How do the benefits compare with the maintenance/ recurrent costs (from land users' perspective)?
Short-term returns:
positive
Long-term returns:
very positive
Comments:
The fruits are locally sold expensively at 1000 UGX@ and raise much income to the farmer.
6.5 Adoption of the Technology
- 10-50%
If available, quantify (no. of households and/ or area covered):
20 household
Of all those who have adopted the Technology, how many have did so spontaneously, i.e. without receiving any material incentives/ payments?
- 90-100%
Comments:
The land user uses the little resources he has to establish the technology.
6.6 Adaptation
Has the Technology been modified recently to adapt to changing conditions?
No
6.7 Strengths/ advantages/ opportunities of the Technology
Strengths/ advantages/ opportunities in the land user’s view |
---|
Constant supply of fruits provides high income to the land user. To realize maximum production, there is need for irrigation to have a constant fruit supply with support from extension workers who are readily available with the extension workers for technical advice. |
The fruit trees modify the micro-environment making it conducive. |
The technology is very rewarding, cost effective once established and can easily be replicated by other land users. |
Strengths/ advantages/ opportunities in the compiler’s or other key resource person’s view |
---|
The technology is good for small , medium and large scale farmers due to its ability to improve soil fertility, increase production and household income. |
Can easily be replicated by other land users. |
6.8 Weaknesses/ disadvantages/ risks of the Technology and ways of overcoming them
Weaknesses/ disadvantages/ risks in the land user’s view | How can they be overcome? |
---|---|
Before establishment the technology requires some knowledge and skills on fruit growing which can be extended by the extension worker who are located far from the land user. Associated with high costs in terms of transport and allowances to the land user. |
Training and capacity building of local land users / experts. Training champion farmers. Establishment of learning sites / demonstrations. |
Prone to climate change | Irrigation during the dry season |
Requires water supply | Irrigation during dry seasons |
Weaknesses/ disadvantages/ risks in the compiler’s or other key resource person’s view | How can they be overcome? |
---|---|
High establishment costs associated with reduced maintenance costs both in the short, medium and long term. | Adapt low cost practices for those starting and integrate with time and for those with low incomes. |
Associated with high prevalence of pests and diseases. Risky to spray during flowering season. |
Close monitoring of the field all the time. Seek technical advice from the extension worker. |
Labour intensive at the time of establishment. | Supplement with family labour. |
7. References and links
7.1 Methods/ sources of information
- field visits, field surveys
1
- interviews with land users
1
- interviews with SLM specialists/ experts
1
7.2 References to available publications
Title, author, year, ISBN:
Do Trees on Farms Improve Household Well-Being? Evidence From National Panel Data in Uganda, Daniel, C.Miller,September 2020.2020.0010
Available from where? Costs?
On-line. Free of cost.
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