Avocado Cultivation in Kenya
Avocado is among the most nourishing fruits that are largely cultivated in the tropics. In Kenya, it is one of the most consumed fruits that is readily available in the market all year round. Going by the latest HCDA statistics, avocado has a fare share among the leading export crops and Kenya stands out as a major player in the avocado export market. Locally avocado is sold at the market place from between Kshs10 to Kshs 50 depending on the size and quality. Avocado trees are very productive and are capable of fruiting all year round. At maximum production a single mature tree can produce 70 to 100 kg of fruits per year.
There are avocado orchards flourishing in a wide range of environments but for optimum growth and yield, tropical regions with temperatures ranging from 25 to 30 degrees Celsius and rainfall ranging from 750mm to 1200mm is ideal. Avocado grows in a wide range of soils too, as long as the soil is well drained and the growing site doesn’t have a high water table. Heavy soils will make the trees susceptible to root rot. The selected site should be exposed to enough sunlight and protected with wind breakers if the area experiences frequent strong winds.
It is recommended to plant trees in a straight line to facilitate proper husbandry measures and harvesting. Spacing depends on the cultivar; it varies from 6m by 7m to 8m by 10m. Ensure you acquire certified and true-to-type seedlings from reputable suppliers. If you are planting the hass variety, its advisable to have a few of either fuerte or linda avocado trees for the purpose of cross pollination. We largely stock the hass variety due to its high demand and a few of fuerte, pinkerton and linda. As usual, carry out soil testing and analysis to establish the nutrient requirement. This will enable you make an informed decision on the fertilization program to implement. When planting, ensure you mix the top oil with farmyard manure, phosphate and soil bio-pesticide; we highly recommend Trichoderma.
During the initial growth stages, formative pruning is desirable to encourage lateral growth. Ensure all shoots originating from below the grafting joint are pruned off. Weed control and soil management are necessary to prevent competition for nutrients. Young trees should be mulched to increase water retention rate but ensure there is a gap between the mulch and tree trunk to avoid pest and disease infestation. Nowadays, rainfall patterns are highly unpredictable; ensure you have an irrigation program that will supplement rain. Orchard sanitation is the first step towards proper control of diseases and pests. We have an integrated pest management and crop protection programme targeting avocado farmers that can be utilized.
Avocado fruit does not ripen on the tree, but it matures on the tree. For this reason, proper timing should be observed when harvesting. Poor timing directly affects fruit quality. For those targeting the export market, good maturity development of the fruit to control the oil content and dry matter is of great importance. To meet the established standards, fruits that are sufficiently mature should be selected. Adhere to good handling and packing practices for better returns. Have a fruit season ahead and in case of any queries, do reach us via mail firstname.lastname@example.org
Purple passion fruit cultivation
That passion fruit is among the fruits that have great economic importance in Kenya cannot be gainsaid. The demand for passion in both local and export market is huge. Kenyan farmers have not fully exploited this opportunity due to various challenges that we are trying to address. For the past 6 months we have been on the ground working hand in hand with farmers in Nyahururu, Uasin gishu, kitale, and Migori to develop purple passion fruit orchards that meets the export market threshold. This article will highlight the various processes we applied to ensure effective cultivation, harvesting and marketing of passion fruits.
There are 2 types of commercially grown passion fruit in Kenya; purple passion fruit and the yellow passion fruit. At the moment, we are concentrating more on the purple passion fruit due to its potential for fresh market and juice extraction both in the local and export market. Purple passion is most suited to upper midlands and highlands with an altitude of 1100m-2500m above sea level with temperatures ranging from 18-28 degree Celsius. They can be grown in a wide range of soils provided there is adequate drainage with a soil PH of between 6.0 – 6.5. The cultivation site should be exposed to enough sunlight with an annual rainfall of 900mm – 2000mm per year. Irrigation systems can be designed and developed in areas that don’t experience enough rainfall. A single plant can consume 20 litres of water per week.
Passion fruit is propagated through seed, grafting and tissue culture. We raise our seedlings organically using beneficial fungi and bacteria that come from the soil to control pest and diseases from the initial stage of propagation. We solarize the soil and use Trichoderma that prevents nematodes and soil diseases and also promotes root growth and yields. Our rootstocks are raised from the bitter yellow passion variety called Zimbabwe and we graft using the purple passion scions. We do assist our clients in setting up a passion fruit seedling nursery once they have grown the plants. This comes in handy when one wants to replace diseased plants or plants that have reduced productivity. The seedlings can also be sold to other farmers offering an alternative source of income. If one is purchasing seedlings elsewhere ensure to get certified planting material from reputable seedling suppliers.
The passion fruit plant should be trained to grow on trellises for optimum growth and yield. The spacing of the poles is directly related to the spacing of the passion fruit plants. The poles are to be placed between 2 or 3 passion fruit plants, spaced 3 metres a part. Intermediary poles can be introduced to prop up the wire in case of heavy fruiting. The distance between rows is usually 3 metres and the rows should be parallel to the direction of the wind. During planting one should dig 2 by 2 feet holes and mix the top soil with organic manure before planting. Minimum investment for one acre passion orchard ranges between Kshs 80,000 to Kshs 100,000.
For optimum production, passion fruit plants need training, pruning, weeding, fertilising and crop protection. Start training the passion fruit vines at an early stage, allow 1-2 vines of each plant to run along the trellis as main vines, this allows laterals from the main vines to grow downwards bearing fruit. Prune to eliminate unwanted shoots and vines to permit systematic growth. The nutrient status of the soil will determine which fertilizer program to be embraced, for this reason a soil analysis and test is of great importance. Weed frequently to reduce competition for nutrients and unwanted pests and diseases. Ensure phytosanitary standards are highly observed, this will help reduce cases of diseases and pests that include fusarium wilt, woodiness virus complex, brown spot etc. We do have an integrated pest management strategy that we are implementing with the farmers we are working with to ensure that the fruits harvested can be accepted in different markets both locally and internationally.
The initial harvest can be expected from the 7th month. The fruit matures in 2 months after flowering and will naturally fall in the ground when mature. Export market destined should be harvested before they fall off naturally to increase the fruit’s shelf life. A mature vine can produce one main harvest and two smaller harvests annually. With proper planning and timing one can harvest all year round. We do organise capacity building training sessions that imparts practical and functional skills on IPM for passion fruit, proper harvesting, packaging methods and accessing markets both locally and internationally. For more info do reach us on email@example.com
Peach is a temperate fruit tree that belongs to the family of rosaceae, same as the apple. Peaches have not penetrated the Kenyan market that well; the fruit is spotted in few high end market places. However there are few farmers who cultivate peaches on a small scale and do sell their produce to roadside vendors. Peaches too require a chilling effect to break dormancy. Different peach cultivars have varying chilling requirements. Ideal locations for growing peaches are altitudes of approximately 1500-2500 m.
There are two important factors to consider when growing peach; proper site selection and cultivar choice. Peaches can be grown in a wide variety of soils as long as it is well drained. Soil PH of slightly above 6 is ideal. The site should be exposed to enough sunlight with an annual rainfall of about 800-1000 m. Cultivars propagated in Kenya include; alexander, jewel, waldo, killiecrankie among others. Healthy, disease free and vigorous seedlings ought to be planted. A spacing of 5m by 6m is ideal from one tree to the other. Ensure the planting holes are large enough to accommodate the root system. Intercrops such as beans and peas can be grown in between the peach trees during the initial stages.
The trees should be well maintained and pruned to the desired shape. Peaches are heavily pruned to ensure a strong tree and high quality yield. Open centre pruning technique is preferred to facilitate the penetration of light and air circulation. Peaches should be pruned annually to remove old wood because a peach tree produces fruit on one year old wood only. Nutrient levels should be maintained to keep trees healthy and productive. This is realised by applying manure and fertilizer; soil and foliage tests will determine nutrient need.
Peaches start fruiting in the third or fourth year. Thinning is necessary to control the number of fruits and for the production of quality peach fruits. One would rather have 200 quality well sized fruits than having 400 poorly developed fruits. Fruit don’t ripen uniformly on the tree so it is necessary to hand-pick fruits selectively. Fruits can be stored for 1-7 weeks under refrigeration and at a constant temperature.
A wide variety of pests and diseases attack peach trees, these include; aphids, moth, fruit flies, nematodes, scab, mildew, leaf curl, rust and root rot. In case of an attack do contact your extension officer for proper diagnosis and recommendations. As a general rule, prevention is better than cure; plant disease free seedlings and closely monitor your plants for any slight attacks. Happy season and ensure you plant a fruit tree.
Jurgen Griesbach, (2007) Growing Temperate Fruit Trees in Kenya. World Agroforestry centre, Nairobi.
Apple cultivation in Kenya
Apple belongs to the family rosaceae. It is a hardy deciduous temperate fruit tree that needs low temperatures of around 13⁰C to break dormancy. There are apple cultivars with a low chilling requirement that can do well in areas that do not experience low temperatures. Alternatively dormancy can be realised through the use of chemicals or mechanically through defoliation to induce early dormancy. We can confidentially ascertain that apples can do well pretty much in most parts of Kenya, even in areas experiencing high temperatures, as long as the right cultivars are used. Fruit production might vary in different climatic conditions, but one can get a substantial harvest.
Commercial apple production requires two essential preconditions: cold winters and relatively hot summers. Apples do well in areas with an annual rainfall of 800 to 1100 mm. Apples can do well in different soil types as long as the soil is deep, fertile, properly aerated and well drained. Sufficient soil moisture is desired during bud break and fruit set for proper fruit quality and yield. Most apple cultivars are not sufficiently self-pollinating; it is advisable to plant other cultivars that act as pollinators, these include winter banana, Jonathan and golden dorset. A spacing of 2-3m between plants and 3-4m from row to row is ideal. Soil and leaf analysis will offer great insights and will determine the fertilizer programme to be adapted.
Apple trees should be properly cared for during formative stage to guarantee a good yield. Trees should be pruned to the desired shape. One should strike a balance between vegetative growth and fruit production. The ‘open centre tree’ is the most common pruning technique that is practised. Thinning is also desired for it helps improve fruit size and quality. There are two main picking seasons: February and August. A year round supply can be realised, picking time can be controlled by the timing of leaf stripping. Apples ripen on the tree and should be hand-picked when they have reached optimum colour and size.
The major pests and diseases include; aphid, thrips, spider mites, fruit flies, apple scab, powdery mildew, armirallia root rot. Preventive control of pests and diseases is desired, use disease free seedlings and ensure to observe high standards of hygiene in your garden. As usual contact your extension officer for proper diagnosis and advice. We do provide extension services and also stock disease free seedlings. The varieties in stock include; Ana, braeburn, Fiji, gala, red delicious, golden dorset and cripps lady. Happy season and ensure you plant a fruit tree; an apple a day, keeps the doctor away.
Jurgen Griesbach, (2007) Growing Temperate Fruit Trees in Kenya. World Agroforestry centre, Nairobi.
Soursop fruit farming
Soursop is a tropical evergreen tree that produces fruit with a prickly yellow-green skin. Also referred to as graviola, all its parts from the root to leaves are edible or has medicinal value. It is a fast growing tree that starts producing fruit in the third year. The soursop fruit is sold in some of the major markets in Nairobi that include; Ngara, city and wakulima. There is no documentation on any commercial soursop plantations in Kenya but a few plants have been spotted in coast, Nyanza and central regions. Soursop (annona muricata) is often mistaken for or referred to as custard apple (annona reticulata) , they belong to the same family- annona, but they are two different fruits. We will explore Custard apple in our next article.
Soursop grows in a wide array of soils as long as the soil is well drained. A soil PH of between 5 and 6.5 is ideal. The soursop tree is small in size and may serve as an intercrop between large fruit trees. Soursop can be propagated from seed or cuttings. Plant well developed seedlings and ensure they are mulched to suppress weeds and to improve moisture retention in the soil. Soursop trees prefer warm and humid conditions to thrive, they are very susceptible to low temperatures. On maturity fruit may emerge anywhere on the tree ; trunk, branches or twigs. The tree will require adequate fertilizing of which we recommend organic compost and mulching using organic material. Young trees can be supported using bamboo sticks.
The tree starts to flower and eventually fruit in the third year, fruits are harvested when they are fully developed but still green. Thereafter it takes 2-4 days to ripen. A single tree can produce 60-70 fruits in a year. The fruit should be handled with care when harvesting to avoid bruising it. After harvest prune slightly as you eliminate dead wood. Soursop may be directly consumed when ripe or processed into ice cream, syrup, smoothies, juice, pulp etc. The fruit has a white fleshy and fibrous pulp with a sweet sour flavor and is rich in vitamin B and C.
There are various pest and diseases that attack the soursop tree. Locally it is more vulnerable to the fruit fly and aphids. Plant disease free seedlings and monitor your plants for any pests and diseases. In case of any attacks consult your extension officer; we do also assist farmers by offering them professional advice concerning the same. We have stocked a few soursop plants that are ready for planting, feel free to visit our demonstration project at kariobangi north primary or our main nursery at Thome, Kasarani. Happy gardening and make sure you plant a fruit tree.
FRUIT CULTIVATION FOR STARTERS
All along we have been highlighting fruit trees that we perceive have great potential to uplift the living standards of small scale farmers and home gardeners in the hope that many will embrace fruit farming. Our focus as an organization is on micro and small scale farmers especially those who are innovative and willing to embrace different farming techniques and crops. As much as most policy issues in the horticultural sector lean towards large scale farmers, micro and small scale farmers play a crucial role in the economy of a country. Food security is greatly boosted and hidden hunger reduced if many individuals engage in farming activities rather than a few large scale farmers whose main objective is high yields.
A well tended grafted apple mango tree
We all are farmers by default and agriculture is a way of life that can also double as a business. The goal is to create a simple farming system that can be easily implemented and gives room for continual optimization of the ecological, economic and social benefits. You are your own teacher. Don’t rely entirely on our posts or what we say, get information from different sources that will enable you make an informed decision. Do your own research that will enable you decide on what you want to do and why you are doing it? Know thyself.
Fruit farming has its share of challenges along the value chain, from the farm to the market as fresh fruits or processed end products. Even if your farm is meant for personal consumption, the farm should be designed with the end market in mind. In other words, the farm’s potential to generate income and other environmental and social benefits should be exploited and put into consideration. You never know, later you or your inheritors might want to generate some income from your farm. There are many income generating opportunities that integrate well with an orchard; from offering demos, training, seedlings among others.
Fruit cultivation is a long term activity; a grafted tree starts producing viable fruits in the third year, and starts producing optimally after the next 2 to 4 years then continually beyond generations. Hence there is need for good planning to realize short, medium and long-term goals. For this to be realized different crops and trees should be integrated in the farm system. A background check should be done to know the characteristics of the different kind of crops and fruit tree species that combine well and have a degree of symbiotic relationship. For proper results combine the right fruit tree and the right medium term (Papaya, cassava, sweet potato, tree tomato etc) and short term (vegetables, strawberry, herbs etc) crops and trees/shrubs.
Consider location with reference to weather and market. The site should have plenty sunshine and excellent air flow. It is proper to do soil test and analysis so as to know the status of your soil. The soil should have good drainage and adequate PH. Soil testing facilities do exist that one can do testing at pocket friendly rates but we still feel that the prices should be reduced to enable an ordinary farmer access the service.
Planting and irrigation
Consider the correct spacing as per your needs. The pruning system to be used will determine the distance between trees. Source certified and disease free planting material and inputs. We advocate the use of more organic manure/fertilizer and less synthetic fertilizers. Settle for your preferred irrigation system, there are drip irrigation systems designed and meant for small scale farmers.
Tree training and management
Right management practices should be embraced. A well trained tree is much easier to manage and maintain and this calls for constant care from when the tree is young. Trees should be trained to facilitate cultivation, light penetration, spraying and harvesting. Consider the following too; Mulching, weed management, pruning, thinning and pollination requirements.
Pest and disease control
The best way to tackle pest and diseases is prevention. Plant disease free seedlings and ensure they are well taken care of. We favor integrated pest management (IPM) that combines different pest control techniques and strategies keeping the use of pesticides at low levels. IPM is a complex pest control process but cost effective with many benefits to the ecosystem and our personal health.
Start looking for market for your produce before you harvest. Horticultural crops, because of their high perishability require an efficient marketing strategy. Come up with a marketing strategy that will identify potential buyers, how they will access the farm products and at what price. Small scale farmers can form groups that will enable them produce in bulk and access the export market as a single unit. Local fruit processing firms do exist in different counties that are in need of raw material, approach them and know the thresholds and the prices they offer.
Harvesting and storage
Harvest your produce at the right time for better quality. Fruits are harvested when they are mature or ripen. Use easy to handle harvest containers and ensure the harvesting tools are sterilized. Harvested fruits should be washed and treated to avoid propagation of diseases. Fruits are stored in a dry and cool place in flexible sacks, crates, cartons or baskets as they await consumption or value addition.
Farming on a small or moderate scale has prospects of generating competent income. There is need for Policy measures that improve the performance of small scale horticultural farmers. There are a variety of fruit tree species that perform exceptionally well in Kenya, hence need for more research and development to realize their potential. The setting up of fruit processing firms in different counties offers the Kenyan small scale farmer an opportunity to diversify into fruit farming. Thoroughly master your local problem, come up with solutions as you impact the lives of others while making a profit. Sustainable fruit farming offers a simple solution that combats climate change and food insecurity making it a worthy cause.
BREADFRUIT PROJECT 2015
We are looking forward to a fruitful 2015 as we continue to encourage farmers and home gardeners to embrace eco-friendly agriculture that adapts to climate change, and achieves higher productivity while delivers economic and social benefits. In partnership with Bonsai Global (http://www.bonsaiglobal.co.ke) we are embarking on a journey to sensitize Kenyans on the economic and environmental benefits of Breadfruit. A single tree can produce enough fruit to calorically sustain a modern family of 4 for six months over 75 plus years. Breadfruit can be used as a substitute for rice, and it can be processed into a glutten-free flour can serve as a replacement for wheat flour in making muffins, pancakes and bread. We have identified farmers from different parts of the country who will be trained on Breadfruit best production practices and given seedlings to kick start their practical project. The Breadfruit Institute (www.breadfruit.org) in Hawaii will be providing the seedlings to be distributed to farmers and schools in different selected areas.
Food self-sufficiency and sustainability are becoming hot topics and such an initiative will come in handy. Breadfruit is a fast growing versatile fruit that can play an important role in combating food insecurity and deforestation especially in different countries in Africa. With proper maintenance breadfruit can easily be grown in places with little space in urban areas and can also be inter-cropped with different plants on farms. Breadfruit farming is not labor intensive, requires less inputs and produces yields greater than any other starch alternative,including wheat, maize and tuber crops. Nutritionally, it is rich in iron, calcium, fiber, potassium, magnesium and its high in carbohydrates. Breadfruit can be boiled, roasted, baked or fried and has great potential to be featured in the everyday diet. There are more than 100 varieties of breadfruit but most prevalent ones are the Ma’afala and Ulu Fiti, provided by tissue culture through Global Breadfruit (www.globalbreadfruit.com).
For high produce and quality fruit, one should plant mature and healthy seedlings in a place where there is good air circulation. Breadfruit is an energy rich food that requires sufficient nutrition and regular watering during the first 6-12 months. The trees should be mulched after planting and beneficial cover crops planted around the tree to also increase biological activity. It is advisable to test your soil before applying any fertilizer and should be applied before the fruiting season. Healthy seedlings are disease resistant but one should watch out for snails, slugs, ants, termites and mildews. When it comes to pest and diseases, prevention is the best cure. Ensure the area surrounding your plants is clean and weed free to avoid pests.
Bonsaiglobal team presenting breadfruit seedlings
Within 2-3 years the breadfruit tree starts fruiting and with proper care the tree can produce fruit for more than 75 plus years. A single tree can produce 150-200 fruits in a year at peak production. We are in the process of identifying markets for breadfruit as well as creating an increased demand for it especially among gluten free persons and those who suffer from celiac disease. This will be achieved through the production of quality fruits, value addition and showcasing the immense nutrition and health benefits of consuming breadfruit and its potential to address hidden hunger. We are targeting farmers and schools in areas with slightly high temperatures that do not go below 16 degree Celsius at night and have irrigation or receive 1500mm of rain annually. Regions from Western, Coast, Eastern, North Eastern and parts of Rift Valley are areas where plants have already been experimented with. Drop us a mail in case of any inquiries firstname.lastname@example.org
Originally referred to as the Chinese gooseberry, kiwi is one of the most nutritious fruit yet so expensive; a single fruit goes at Ksh 100 which is equivalent to approximately 1.15 Dollars. The price is high because the fruit is imported meaning that no local farmer can meet the market demand or the quality desired by the market. Kiwi is a climbing crop that grows similarly as the grape fruit. In fact kiwi performs well in areas where grapes grow well and follow almost the same crop management strategies as the grapevine. The most common species locally is the fuzzy kiwi fruit scientifically referred to as A.deliciosa that produces an egg shaped fruit with a brown hairy skin.
Kiwi is a temperate fruit that can perform well in temperate zones in Kenya that include Central, Western highlands and central Rift valley among others. It can be propagated either from seed or stem cuttings. Cuttings are the most preferred method because they mature faster. Kiwi can be grown in a wide range of soils, as long as the soil is properly drained. It is a climbing plant and will need support until they are properly established, a trellis system serves better. A suitable site is one that is protected from strong winds and is exposed to enough sunlight. Because of its shallow roots and fast growth, kiwi should be irrigated regularly.
The fruit tree can bear fruit for 12-15 years and some take less than 2 years to start fruiting. For the plant to produce fruit one needs a male and female plant. Kiwi is dioecious; it has male and female reproductive organs on separate plants of the same species. Male plants don’t produce fruits but they pollinate female plants. One male vine is planted for every 8 female vines. It is hard to identify if a plant is either male or female until they start flowering, so one has to grow several plants to increase the probability of having both. For proper fruit set, light pruning and thinning should be done once the fruit tree matures.
Kiwi seedlings are hard to come by in Kenya, the few nurseries that have, sell them from between Ksh 250-1000 per seedling. Farmers should start with a few plants, like 8 and then increase the number gradually from their own saplings. Kiwi farming is viable and is an additional income generation option for farmers. It is a high yielding crop that can be embraced by small-scale farmers who have no large tracts of land. It is not labour intensive and allows room for inter-cropping with plants such as potato, ginger, asparagus, maize and chili.
Seedlings from cuttings are delicate and need proper care for the plant to grow successfully. Exposure to a lot of fertilizer may burn the roots; this is the reason why we prefer using compost manure and less fertilizer. We are monitoring a few kiwi crops planted in containers on trial basis to see how they will perform before we start distributing the seedling to farmers and home gardeners. Despite the challenges associated with fruit farming, we are optimistic about the prospects of returns from kiwi farming. The future is not for us to tell but the few farmers who will strike it right with kiwi will have a different story to tell.