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Potato marmalade April 29th, 2018 by

Vea la versión en español a continuación

The American anthropologist Mary Weismantel notes that for peasant farmers in the Ecuadorian Andes, cooking is the very last step (before eating) in the long process of growing crops.

During my career I’ve met many agricultural scientists working on better ways to grow more food on small farms, to harvest it more efficiently and lose less in storage. Until recently, I had met few who studied better ways of cooking.

At UMSS, a public university in Bolivia, food technologist, Prof. Jenny Espinoza, and her students are designing new products from potato. They hope that these products will increase the demand for potatoes and raise prices that Bolivian smallholders receive. One student has discovered that unique colors of natural dye can be derived from the various native varieties of Andean potatoes. Another has made pasta from potato flour.

Last week I had a chance to see thesis students Marizel Rojas and Dubeiza Flores making potato marmalade in the food laboratory. Strictly speaking, marmalade is made from oranges, but in South America most jams are called “mermelada.” As with all inventions, such as the lightbulb or metal plow, creating a new food product involves trial and error, with the inventor slowly working towards the target concept.

Marizel and Dubeiza got some suggestions for marmalade from the internet. These weren’t much help, but they were a start. The potato is a good source of pectin, the glue that holds the jam together, but the original recipes produced a lumpy, tasteless paste. Eventually the researchers figured out how much sugar to add, and they learned that fruit had to be added to add more flavor than a plain potato could offer. They also realized that the potato had to be puréed in an electronic blender.

The student researchers learned that the total amount of sugar had to equal 80% of the combined volume of potatoes and fruit, after boiling off most of the water. Then these amounts had to be converted into simple measures that cooks could use without doing any arithmetic.

After watching the thesis students make the jam, we sat down with some of the other faculty and students and ate a whole jar of it on crackers (biscuits). It was delicious, especially when warm, with no taste of potato.

Agricultural inventions often go through several stages. The researcher develops a prototype which farmers validate, and modify, which can then be shared with other communities. They then continue to creatively adapt the idea.

The potato marmalade is still at the prototype stage, but it has come a long way. The students have started to make their products with a farm community in Piusilla, Morochata, near Cochabamba. Only time will tell if potato marmalade becomes popular with consumers, but the research has shown a bit more of the potential hidden in the versatile potato. The trials have been a training ground for two young food engineers. If you can make marmalade from potatoes no doubt many more things can be made from the humble tuber.

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Try it at home

If you want to experiment with potato marmalade at home you will need the following:

Ingredients

3 small to medium-sized potatoes (100 grams raw, after peeling and cutting)

1 cup of water

1 small pineapple. Or about 2 cups (or 100 grams)

3 cups of sugar (160 grams)

The juice of 2 small lemons or 2 tablespoons of lemon juice

Makes enough marmalade to fill about 3 jars.

Steps

Peel the potatoes, wash them and cut them into cubes. They should make about 2 cups when cubed, or 100 grams.

Boil the potatoes until they are cooked.

Purée the mashed potatoes in an electric blender with a cup of water, which makes the potatoes easier to blend.

Peel the pineapple, cut it into cubes. Purée it in the blender. It should be about 2 cups or 100 grams of fruit.

Add the pineapple purée to the potato.

Add just 1 cup of sugar. (Don’t add all 3 cups now, or the marmalade will turn brown).

Return the mix to the stovetop and boil for about 15 minutes, stirring constantly. Boil until the mixture is thick. As you boil off the water, the mix should lose about half of its volume.

Add the other 2 cups of sugar and cook for about 5 minutes until the mixture is thick.

Stir in the lemon juice.

Remove from the fire and pour the hot marmalade into sterile glass jars.

Put the lid on the jars and turn the jars upside down to cool. Turning the jars upside down sterilizes the inner side of the lid with the boiling hot marmalade.

MERMELADA DE PAPA

Por Jeff Bentley, 29 de abril del 2018

La antropóloga estadounidense Mary Weismantel señala que para los campesinos de los Andes ecuatorianos, cocinar es el último paso (antes de comer) en un largo proceso que empieza con la siembra.

A través de los años, he conocido a muchos científicos agrícolas que tratan de mejorar el cultivo de alimentos en fincas campesinas, cosechar de manera más eficiente y perder menos en pos-cosecha. Pero hasta hace poco, conocía a pocos que estudiaban mejores formas de cocinar.

En la UMSS, una universidad pública en Bolivia, la tecnóloga de alimentos, la Prof. Jenny Espinoza, y sus estudiantes están diseñando nuevos productos de papa. Esperan que estos productos aumenten la demanda de la papa y que suban los precios que reciben los campesinos bolivianos. Una tesista ha descubierto que se pueden derivar colores únicos de las diversas variedades nativas de papas andinas. Otra ha hecho pasta de harina de papa.

La semana pasada tuve la oportunidad de ver a las tesistas Marizel Rojas y Dubeiza Flores mientras hacían mermelada de papa en el laboratorio de alimentos. Como con todos los inventos, como el foco de luz o el arado de metal, la inventora de un nuevo producto alimenticio usa el método de la prueba y error, trabajando lenta pero sistemáticamente hacia el concepto objetivo

Marizel y Dubeiza recibieron algunas sugerencias de mermelada de Internet. Estos no fueron de mucha ayuda, pero fueron un comienzo. La papa es una buena fuente de pectina, el pegamento que aglutina la mermelada, pero las recetas originales produjeron una pasta grumosa e insípida. Finalmente, las investigadoras calcularon que cantidad de azúcar agregar, y aprendieron que había que agregar fruta para dar más sabor del que podría ofrecer una papa común. También se dieron cuenta de que la papa tenía que ser hacerse puré en una licuadora.

Las tesistas aprendieron que la cantidad total de azúcar tenía que ser igual al 80% del volumen combinado de la papa y la fruta, después de perder la mayor parte del agua durante la cocción. Luego estas cantidades tuvieron que convertirse en medidas simples que las cocineras podrían usar sin hacer cálculos matemáticos.

Después de hacer la mermelada, nos sentamos con algunos de los otros profesores y estudiantes y comimos un frasco completo con galletas. Fue deliciosa, especialmente por ser caliente. No tenía ningún sabor a papa.

Los inventos agrĂ­colas a menudo pasan por varias etapas. La investigadora desarrolla un prototipo que las agricultoras validan y modifican, que luego se puede compartir con otras comunidades. Luego continĂşan adaptando creativamente la idea.

La mermelada de papa todavía está en la etapa de prototipo, pero ha recorrido un largo camino. Las tesistas han comenzado a hacer sus productos con la comunidad agrícola de Piusilla, Morochata, cerca de Cochabamba. Solo el tiempo dirá si la mermelada de papa se vuelve popular entre los consumidores, pero la investigación ha mostrado un poco más del potencial escondido en la versátil papa. Las pruebas han sido un campo de entrenamiento para dos jóvenes ingenieras de alimentos. Si se puede hacer mermelada de la papa, sin duda, se pueden hacer muchas más cosas a partir del humilde tubérculo.

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Hace poco escribimos sobre agricultores bolivianos que venden productos de valor agregado.

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Videos relacionados

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Pruébalo en casa

Si desea experimentar con mermelada de papa en su hogar, necesitará lo siguiente:

Ingredientes

3 papas pequeñas a medianas (100 gramos crudos, después de pelar y cortar)

1 taza de agua

1 piña pequeña o unas 2 tazas (o 100 gramos)

3 tazas de azĂşcar (160 gramos)

El jugo de 2 limones pequeños o 2 cucharadas de jugo de limón

Hace suficiente mermelada para llenar alrededor de 3 frascos.

Pasos

Pele las papas, lávelas y córtelas en cubos. Debe ser unas 2 tazas cuando están en cubos, o 100 gramos.

Hervir las papas hasta que estén cocidas.

Haga el puré de papas en una licuadora eléctrica con una taza de agua, para que las papas sean más fáciles de mezclar.

Pele la piña, córtela en cubos, haciendo un puré en la licuadora. Es aproximadamente 2 tazas o 100 gramos de fruta.

Agregue el puré de piña a la papa.

Agregue solo 1 taza de azúcar. (No agregue las 3 tazas ahora, o la mermelada se pondrá marrón).

Regrese la mezcla a la estufa y hierva durante más o menos 15 minutos, revolviendo constantemente. Hierva hasta que la mezcla esté espesa. Al hervirse, la mezcla debería perder aproximadamente la mitad de su volumen.

Agregue las otras 2 tazas de azúcar y cocine por unos 5 minutos hasta que la mezcla esté espesa.

Agregue el jugo de limĂłn.

Retire del fuego y vierta la mermelada caliente en frascos de vidrio estériles.

Pon la tapa sobre los frascos y ponga los frascos boca abajo mientras se enfrĂ­en. AsĂ­ se esteriliza la parte interior de la tapa con la mermelada hirviendo.

Seed fairs February 18th, 2018 by

Seed fairs are gaining in popularity around the world, and are a great way to encourage farmers and gardeners to conserve global biodiversity. But the fairs can do more than just provide an opportunity for people to exchange and sell seed, as I recently learned during a visit to Guatemala to make a farmer training video on farmers’ rights to seed, with a particular focus    on women in biodiversity management. In Guatemala, donor agencies and organisations have supported community biodiversity conservation initiatives for over a decade.

Our local partner, ASOCOCH, is an umbrella organisation of 20 cooperatives and farmer associations, representing some 9,000 farm families in the western highlands of Huehuetenango. On Sunday, one day before the actual seed fair starts, we visit the venue. The seed fair has become a large annual event, unlike in Malawi, where seed fairs are less regular. The fair attracts hundreds of people from across the highlands, some travelling long distances. One elderly woman told me she rode a bus for five hours to get there.

The seed fair is a lively, social event, with a Ferris wheel, stalls with amusement games and one with wooden, artistically carved horses with leather saddles on which people can sit and have their photo taken against a painted background of lush vegetation, complete with mountains and waterfalls. Visitors can buy sweets and nuts. A young boy gently pushes his wheelbarrow full of mandarins for sale through the crowds, while indigenous women sell traditional delicacies. Families with grandparents and kids relish the event as the region does not have such a large fair very often.

But there is more to the fair than having fun and eating. The seed fair is held on school grounds and I soon see farmers in intricately woven, traditional clothes lining up to register for classes. There are four large rooms where farmers can learn about potato, agrobiodiversity, climate change and women’s rights. My wife Marcella and I first attend the talks in the agrobiodiversity room, where Juanita Chaves from GFAR explains about farmers’ rights to seed. To my surprise this is followed by two presentations on aflatoxins in maize by staff from a local NGO. The presenters graphically explain the relation between mouldy maize cobs and the disfigurement of children and internal organs. As most farmers conserve their own maize seed they need to be aware of the risks of fungal infections. I am still a little puzzled as to how this relates to the seed fair and agrobiodiversity conservation, but after lunch all becomes clear.

We accompany the farmers who attended the aflatoxin sessions to the Clementoro Community Seed Bank, less than 10 kilometers away. The farmers see seeds stored in plastic jars, clearly labelled and neatly stacked on the shelves. In the middle of the room, a young agricultural graduate working at the seed bank shows farmers how they can detect if their seed is contaminated with aflatoxins by using a simple methanol test. “When you store your maize crop and seed, you need to be sure it has less than 13% moisture so that moulds will not develop,” the enthusiastic young woman explains. “Here at the seed bank, you can have your seed tested and conserved in optimal conditions,” she continues.

Seed is one of farmers’ most precious resources, and storing it at a community seed bank requires lots of trust. They need to know that their seed will be safely stored until they need it, either for the next growing season or even a few years later whenever the need arises. By organising seed fairs, seminars and visits to community seed banks, ASOCUCH is building trust through sharing knowledge and explaining clearly what they do.

The next day, we film the actual seed fair itself. There is an overwhelming abundance of crop varieties, fruits, medicinal and even some ornamental plants. Farmers and their families are clearly excited as seed and plant material changes hands. There is brisk trading between farmers. While some exchange materials, most sell and buy seed. People tell each other about the seeds they have on offer. ASOCUCH, with the support of GFAR, had also prepared a booklet with traditional recipes. Copies are spread on tables at the entrance and they run out like hot cakes.

There is a judging competition to find the best seeds.  Judges visit each stand, measuring maize cobs, counting seeds, weighing potato seed tubers and taking notes. Agrobiodiversity is a serious matter. At the same time, outside the schoolhouse, sheep are being rated by another set of judges. In the late afternoon, the results are shared with the audience. People had brought dozens of varieties and over a thousand accessions of various crops. The audience is excited, and so are we. This has been a fascinating two-day event, and the drive of the farmers and their organisations has made us hopeful for the future.  Local initiatives are where conservation begins, but they need the support of local authorities, governments and international organisations to increase their impact.

Everyone has had a good time. More importantly, farmers have made new contacts, acquired seeds of traditional varieties that may have been lost in some areas and helped others to preserve them in new areas. They have learned about saving seed, but most of all, the farmers have learned that they have certain rights to seeds—they can plant their own native varieties as they wish, for example—and that these rights mattter hugely in sustaining local agriculture.

Related blogs

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Further viewing

Farmers’ rights to seed – experiences from Guatemela

Farmers’ rights to seed – experiences from Malawi

Managing aflatoxins in groundnuts during drying and storage

Acknowledgements

Thanks to the Global Forum on Agricultural Research and Innovation (GFAR) and the European Union for funding the production of the video discussed here. Support in Guatemala was kindly provided by the AsociaciĂłn de Organizaciones de los Cuchumatanes (ASOCUCH).

Spontaneous generation January 28th, 2018 by

A few days ago, I sat at my desk in Cochabamba, Bolivia, giving a talk over the Internet to graduate students who were taking a class in IPM (integrated pest management) at the University of Kentucky and the University of Arkansas. One professor, Rob Wiedenmann, was listening in from New Zealand, where he was on sabbatical, but still in touch.

I reviewed some ideas for the students about studying local knowledge of insects and plant diseases, and recent efforts to share ideas on pest control with smallholders via videos. I said that anthropologists have great respect for local knowledge, but those anthropologists had been looking at local knowledge of relatively large plants and animals, not pest control, insect ecology or plant disease. When I was in Central America in the late 1980s and early 1990s I was surprised to realize that Honduran smallholders didn’t understand how insects reproduced. The farmers didn’t know that male and female insects mated to produce fertile eggs which hatched into larvae. This gap in knowledge led to the farmers’ misperception that caterpillars that were eating the maize field had come out of nowhere, the result of spontaneous generation.

That caught Prof. Wiedenmann’s attention. “What can you say about US farmers?” he asked. He wondered what entomologists could do to help North American farmers monitor their insect pests. US farmers often don’t realize that pests are causing damage until it is too late to do anything about them. North American farmers don’t believe in spontaneous generation, but they might as well.

I thought I knew what Prof. Wiedenmann was talking about. I’d been reading Ted Genoways’ book This Blessed Earth, an intimate account of a year in the life of a Nebraska farm family, the Hammonds. These thoughtful, professional farmers were using state of the art technology, including harvesters that gathered in a dozen rows of soybeans at once while measuring the moisture content of the beans and following the furrows by using a GPS. But at harvest time the farmers were shocked to find out that stem borers had caused losses worth thousands of dollars.

I could see that sitting high up in the combine harvester could leave farmers with fewer opportunities to observe their plants. I wasn’t sure what to suggest as a remedy, but I said it is always good to spend more time with the farmers, whether in Arkansas or in Kenya, before jumping to conclusions about what they knew and understood, particularly when it came to pests and diseases..

“Yes, agricultural researchers are often leapfrogging over the lack of information,” Wiedemann quipped. Researchers rush to make recommendations for farmers, but without really understanding their perception or their production constraints.

Different styles of farming influence the ways one sees the world. US farmers have taken biology classes at school and understand that insects don’t come out of nowhere, but lack day-to-day contact with their crops. Tropical smallholders are often out in their fields, and are more likely to spot a pest before the crop is ready to harvest. Even so, most farmers the world over are busy and don’t have enough time to observe their crop regularly and systematically. This can lead to devastating crop losses. Whether farming on a large or a small scale, helping farmers to observe their crops better requires solid interaction with growers to develop and test possible solutions that work in the local context.

Acknowledgement

Thanks to Prof. John Obrycki for inviting me to give this virtual seminar.

Further reading

Bentley, Jeffery W. & Gonzalo Rodríguez 2001 “Honduran Folk Entomology.” Current Anthropology 42(2):285-301. http://www.jefferybentley.com/Honduran%20Folk%20Entomology.pdf

Wyckhuys, Kris, Jeffery Bentley, Rico Lie, Marjon Fredrix and Le Phuong Nghiem 2017 “Maximizing Farm-Level Uptake and Diffusion of Biological Control Innovations in Today’s Digital Era.” BioControl.

Related videos

Access Agriculture has over 30 videos on IPM, which you can watch here.

Watching videos to become a dairy expert January 7th, 2018 by

Last week I wrote about Isaac Enoch, who is using drip irrigation to grow vegetables in South Sudan. This week we meet Tom Juma, who is also one of the registered users of the Access Agriculture video platform.

Tom Nyongesa Juma grew up in a small village in Bungoma, in Western Kenya, about an hour from the city of Kisumu. As a young man he earned a B.Sc. in forestry, and studied soil science for an M.Sc. He nearly finished that degree, but was frustrated by a lack of money to pay his school fees. After university, in 2008, Tom started to work for various NGOs, especially ones that gave him an opportunity to help farmers improve their yields of cereals and other crops.

Then in 2017, Tom decided to put his passion for agriculture into building his own model farm. He now has turkeys, chickens, sheep and three cows. Tom is building a barn to hold 30 milk cows. He is motivated by the desire to teach others, “the extension bit,” as he puts it. But Tom also sees the urgency of producing food for Kenya: “We have so many mouths to feed.” Tom wants his teaching farm to focus on young people. He is building the barn so it can accommodate learning visits by primary schools and others, to teach kids about agriculture. “I want to show that you can make a living by agriculture, and do it smartly”, Tom explains.

As a forester and a soil scientist, Tom feels that he is not really an expert on livestock, so he has educated himself, mostly through videos. He surfed the web for any videos on livestock and horticulture and estimates that he watched over 300 videos. Tom speaks three languages, but he still found some videos in languages he didn’t understand. He watched them anyway, learning by observing the images. From videos, Tom has learned about artificial insemination and placing ear tags on cattle.

Tom says that by this time next year, he will be educating young people, and will be using videos as a key element to do that, on his model farm. Tom says that the Access Agriculture videos are of good quality, “short and to the point.” He has watched Swahili versions of several Access Agriculture videos, including the one on yoghurt making and on making a rabbit house. “They were nicely translated and educational,” Tom says.

 

Related blogs

Drip irrigation saves water in South Sudan

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Videos in Swahili

Access Agriculture has 51 videos in the Kiswahili (or Swahili) language, here.

Acknowledgements

The photos are courtesy of Tom Juma.

Honest farming November 19th, 2017 by

Vea la versión en español a continuación.

You can’t teach a skill that you don’t practice, yet many agricultural scientists try to do just that, lecturing at universities or writing extension messages without spending time a farm. So I was pleased this week to meet a scientist who was getting on-farm experience, and loving it.

My wife Ana and I met Dr. Alberto Centellas on the small farm, about a hectare, which he works with a business partner in the Cochabamba Valley, here in Bolivia. We heard that he sold fruit tree seedlings, and we went to buy some. I had barely closed the farm gate when Dr. Centellas walked up to me, wearing a grin and a straw hat. Without waiting for introductions, Dr. Centellas (“call me Alberto”) began to show us his projects, passionately explaining each one.

Dr. Centellas is Bolivian, but he earned his Ph.D. in Brazil, in temperate fruit production. Then he worked for Embrapa, the Brazilian agricultural research agency, for eight years, followed by another stint at Proinpa, an agricultural research organization in Bolivia. Now he teaches fruticulture at the university in Cochabamba. Teaching and administration don’t always leave much time to spend in the greenhouse, so to hone his agricultural skills, Alberto works on the farm every Saturday.

He had planted new varieties of apples from Brazil, bred to yield fruit in warm climates. After just two years the little trees were head-high. The orchard was enclosed in a large net to keep out the birds. “We won’t harvest anything if we let in the birds.”

The Tahiti lemon trees were full of bright, round green fruits the size of walnuts. “These are seedless. You can just wash them and drop them whole in the blender, rind and all. They are perfect for mixing with cachaça (the Brazilian cane liquor).”

Besides lemon and apple trees, he also has a collection of pears, avocados, peaches and cherimoyas.

Like a lot of researchers, Dr. Centellas is regularly invited to conferences in other countries. But he uses his trips as more than talking shops. He also collects tree varieties. “But only from research centers,” he hastens to add. He gets new tree varieties from reliable sources where the trees are certified and guaranteed to be healthy.

The farm is also a serious business, called Tecnoplant, and it is state of the art. Avocado tree seedlings are expertly grafted and growing in the protected cover of a tidy greenhouse. Other trees have been planted in a small orchard.

Avocados are tricky. Unlike many trees, each variety belongs to one of several pollination groups, including A, B and AB. They yield more if the varieties are grown in mixed groves. Dr. Centellas has carefully set out one row of the variety Fuerte, and one of the variety Lamb Hass. The little trees are watered with drip irrigation and growing under plastic mulch, to keep out the weeds. This is cutting edge tree culture.

I ask Dr. Centellas what motivates him to invest so much time and effort in the farm. I thought he might say something about boosting commercial fruit production, or contributing to agricultural development, but I was pleasantly surprised when he said “I was teaching other people how to farm, and then I got tired of them asking me how many trees I had on my own farm. And I would have to answer that I had none.”

It is more honest to teach techniques that one actually practices. Farming helps Dr. Centellas to understand the real problems that farmers face, making him a better teacher.

Related blog story

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EL AGRO HONESTO

por Jeff Bentley

No se puede enseñar una habilidad que uno no practica, aunque muchos científicos agrícolas tratan de hacer eso, dando clases en las universidades o escribiendo mensajes de extensión sin pisar tierra agrícola. Entonces me dio gusto esta semana conocer a un científico que sí ganaba experiencia agrícola, y le encantaba.

Con mi esposa Ana, conocimos al Dr. Alberto Centellas en la pequeña finca, tal vez una hectárea, que él trabaja con un socio en el Valle de Cochabamba, aquí en Bolivia. Habíamos escuchado que él vendía plantines de frutales, y fuimos a comprar. Yo apenas había cerrado el portón cuando el Dr. Centellas se me acercó, con una sonrisa y su sombrero de paja. Sin esperar que nos presentáramos, el Dr. Centellas (“llámeme Alberto”) empezó a mostrarnos sus proyectos, explicando cada uno con pasión.

El Dr. Centellas es boliviano, pero ganó su doctorado en el Brasil, en la fruticultura de climas templados. Luego trabajó para Embrapa, la agencia de investigación agrícola brasileña, por ocho años, seguido por un tiempo en Proinpa, una organización de investigación agrícola en Bolivia. Ahora enseña fruticultura en la universidad en Cochabamba. La docencia y la administración no siempre dejan mucho tiempo para estar en el invernadero, así que, para pulir sus habilidades agrícolas, Alberto trabaja en la finca todos los sábados.

Había plantado nuevas variedades de manzanos del Brasil, mejorados para dar fruta en climas calientes. Después de solo dos años los arbolitos estaban a la altura de unapersona. El huerto se encubría de una gran red contra los pájaros. “No cosecharemos nada si dejamos entrar a los pájaros.”

El limonero Tahití estaba lleno de brillantes frutos redondos y verdes, del tamaño de una nuez.  “No tienen semilla. Se los puede lavar y echarlos enteros al licuador, con todo y cáscara. Son perfectos para mezclar con cachaza (licor de caña brasileño).”

Además de limoneros y manzanos, él también tiene una colección de peros, paltos, durazneros y chirimoyas.

Como muchos investigadores, el Dr. Centellas es invitado frecuentemente a conferencias en otros países. Sin embargo, se aprovecha de sus viajes para hacer más que intercambiar información. También recolecta variedades de árboles. “Pero solo de los centros de investigación,” aclara. Recibe nuevas variedades de frutales de fuentes confiables, donde los arbolitos son certificados y garantizados de estar sanos.

La finca también es una empresa formal, llamada Tecnoplant, y es tecnología actualizada. Los plantines de palto están expertamente injertados y creciendo bajo la protección de un invernadero ordenado. Otros árboles se han plantado en un pequeño huerto.

El palto tiene sus mañas. A cambio de muchos otros árboles, cada variedad pertenece a uno de varios grupos de polinización, como el A, B y el AB. Rinden más si las variedades se cultivan en huertos mezclados. El Dr. Centellas ha cuidadosamente plantado un surco de la variedad Fuerte, y una de la variedad Lamb Hass. Los arbolitos se riegan por goteo y crecen bajo un mulch de plástico, para que no crezcan las malezas. Es lo último en la fruticultura.

Le pregunto al Dr. Centellas qué le motiva invertir tanto tiempo y esfuerzo en la finca. Pensé que diría algo sobre promover la fruticultura comercial, o contribuir al desarrollo agrícola, pero era una grata sorpresa cuando dijo “Yo enseñaba a la otra gente cómo tenían que producir ellos, y me aburrí de que me preguntaban cuántos árboles tenía yo en mi finca. Y yo tenía que responder que no tenía nada.”

Es más honesto enseñar las técnicas que uno realmente practica. El trabajar con sus árboles ayuda al Dr. Centellas a entender los problemas reales que enfrentan a los agricultores, y por eso es un mejor profesor.

ArtĂ­culo relacionado del blog

Head transplant: The art of avocado grafting

 

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