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High Andean Climate Change February 10th, 2019 by

Vea la versi√≥n en espa√Īol a continuaci√≥n

Recently Paul wrote about how people in Ch‚Äôoj√Īapata, a small village in the mountains high above Lake Titicaca, blend old and new ways of predicting the weather. While we were filming in the village, we also learned more about how climate change is affecting crops.

At this high altitude, 4250 meters above sea level, farmers grow bitter potato, or luk‚Äôi. This is related to the common potato, but a separate species, Solanum juzepcuzukii. Luk‚Äôi was domesticated in the Andes thousands of years ago and is well adapted to high altitudes and conditions which favor few other crops. Little else will grow in Ch‚Äôoj√Īapata besides luk‚Äôi potatoes and some pasture grasses where the villagers herd their alpacas on the steep slopes.

Veteran farmer Juan Mamani explained that in Ch‚Äôoj√Īapata it is now getting too warm to plant luk‚Äôi potatoes. And even when people can grow luk‚Äôi potatoes, it is no longer cold enough to properly process them. To make bitter potatoes edible, villagers have to freeze them outdoors for four nights. ‚ÄúNow, in mid-winter (June) when we would normally get a long freeze, it may only last one night, and when it then rains the luk‚Äôi rot.‚ÄĚ

Don Juan’s friend and neighbor, Celestino Laime, adds that the rains once came at predictable times. Now it can rain at any time, often with heavy downpours, making it difficult to farm.

There are other signs that the normal patterns of weather are changing. The farmers told us that the glaciers around them are disappearing. The mountains, once covered in solid white ice, are starting to turn grey. Now people can see the rocks appear as the ice melts and retreats.

The farmers are adapting, as they always do. With the warmer climate, folks in Ch‚Äôoj√Īapata are growing more of the common potatoes. It is not a perfect solution. They show us a potato field killed by summer frost. The bitter potatoes would have survived that cold snap.

Some people in northern, industrial countries are still denying climate change; villagers in the high Andes don’t have that luxury. They live with the changing climate and worry about it every day.

Related blogs

Three generations of knowledge

Death of the third flowers

Harsh and healthy

Acknowledgements

We were accompanied on this trip by Ing. Edwin Yucra, a professor at the Universidad Mayor de San Andrés. We thank Edwin for being generous with his time and his knowledge. His work is funded in part by the Collaborative Crop Research Program of the McKnight Foundation.

CAMBIO CLIM√ĀTICO ALTOANDINO

Por Jeff Bentley, 10 de febrero del 2019

Recientemente Paul escribi√≥ acerca de c√≥mo la gente en Ch’oj√Īapata, un peque√Īo pueblo en las monta√Īas en lo alto del Lago Titicaca, mezcla viejas y nuevas formas de predecir el tiempo. Mientras film√°bamos en la comunidad, tambi√©n aprendimos m√°s sobre c√≥mo el cambio clim√°tico est√° afectando a los cultivos.

A esta altitud, 4.250 metros sobre el nivel del mar, los agricultores cultivan papa amarga, o luk’i, que es pariente de la papa com√ļn, pero es una especie separada, Solanum juzepcuzukii. La papa luk’i fue domesticada en los Andes hace miles de a√Īos y est√° bien adaptada a las alturas y a las condiciones donde pocos cultivos crecen. En Ch’oj√Īapata nada m√°s crece adem√°s de papas y algunos pastos donde la gente pasta sus alpacas en las laderas.

El veterano agricultor Juan Mamani nos cont√≥ que ahora en Ch’oj√Īapata hace mucho calor para sembrar papas luk’i. Y aun cuando la gente puede cultivar luk’i, ya no hace suficiente fr√≠o para procesarlo bien. Para que el luk‚Äôi sea comestible, hay que congelarlos al aire libre durante cuatro noches. “Ahora, en el invierno (junio), cuando sab√≠amos tener una buena helada, puede helar s√≥lo una noche, y cuando llueve el luk’i se pudre.”

El amigo y vecino de don Juan, Celestino Laime, agrega que antes, las lluvias llegaban en su debido momento. Ahora puede llover en cualquier momento, a menudo con fuertes lluvias, y es difícil sembrar.

Hay otras se√Īales de que los patrones normales del clima est√°n cambiando. Los agricultores nos dijeron que los glaciares que los rodean est√°n desapareciendo. Los cerros, antes tapados de hielo blanco s√≥lido, empiezan a ponerse color plomo. Ahora la gente ve que las piedras aparecen a medida que el hielo se derrite y se retira.

Los agricultores se est√°n adaptando, como siempre lo hacen. Con el clima m√°s c√°lido, la gente de Ch’oj√Īapata est√° cultivando m√°s papas comunes. No es una soluci√≥n perfecta. Nos muestran un campo de papas muertas por heladas que antes no ab√≠an en el verano. Las papas luk‚Äôis hubieran sobrevivido a esa ola de fr√≠o.

Algunas personas en los países del norte siguen negando el cambio climático; la gente rural andina no tiene ese lujo. Ellos viven con el cambio climático y se preocupan por ello todos los días.

Blogs relacionados

Three generations of knowledge

De t’olas y papas

Harsh and healthy

Agradecimientos

En este viaje nos acompa√Ī√≥ el Ing. Edwin Yucra, catedr√°tico de la Universidad Mayor de San Andr√©s. Agradecemos a Edwin por ser generoso con su tiempo y su conocimiento. Su trabajo es financiado en parte por el Programa Colaborativo de Investigaci√≥n de Cultivos de la Fundaci√≥n McKnight.

Formerly known as food January 27th, 2019 by

In a recent book, Formerly Known as Food, Kristin Lawless cautions readers about the risks of eating processed food produced by industrial farming. For example, maize and soybeans are widely used in animal feeds and edible oils. In the USA corn and soy beans have been genetically modified to withstand massive applications of glyphosate herbicide. Glyphosate is reported by the WHO to be an endocrine disrupting chemical (EDC)Although more research is needed to show how these chemicals impact our health,  an  EDC interferes with the normal working of hormones, the chemical messengers of our bodies. Glyphosate is just one of an increasing number of chemicals for which health concerns are mounting, with authors like Lawless calling for stronger action.

A chemical used in plastic packaging, BPA (bisphenol A), has recently been classified as an EDC, and is slowly being removed, albeit on a voluntary basis. BPA is found in everything from plastic milk jugs to the linings of cans of food, where the BPA leaches into the food. Some companies now offer plastics made from BPS, cynically advertised as ‚ÄúBPA free‚ÄĚ, even though BPS is similar to BPA and is also an EDC.

While some industrial foods are tainted by chemicals, other food products are a health risk in their own right because of what has been removed from them. For example, the industrial vegetable oils, shortenings, and margarine have been heated to such high temperatures that their naturally occurring molecules have been broken down and oxidized; their nutritional properties diminished. These factory-made oils are often advertised as ‚Äúheart safe‚ÄĚ, but they actually damage the walls of one‚Äôs arteries.

Lawless  also offers valuable suggestions for healthier eating. For example, cook at home; eat less fast food, and skip processed food. Eat whole foods like whole milk, and real eggs). She advocates joining a food coop that works with concerned family farmers who provide healthy food that goes beyond organic.

On the down side, this book dismisses the role of exercise and of calorie intake, almost as though we could simply eat our way to health with organic food. Having said this, Formerly Known is well written and is based on ten-years of study and interviews with key food researchers. The book educates the readers to take control over what we put in our mouths. While reading it I was inspired to make several lifestyle changes. For example, I finally read the ingredients label on the salad dressing I loved, and realized that it was full of processed oils, other goop and chemicals. I’ve since started making my own dressing.

I would also add that it is time to respect smallholder, family farmers. They have been bombarded over the past few decades with advertisements to buy agrochemicals, often subtly enabled by agricultural policies that favor the agrochemical multinationals and often pay less attention to the effect of mass-produced food on public health. Farmers (and the rest of us) deserve more technical alternatives for managing pests and nourishing the soil. The videos hosted by Access Agriculture provide family farmers with such alternatives, presented in an engaging manner.

Further reading

Lawless, Kristin 2018 Formerly Known as Food: How the Industrial Food System Is Changing Our Minds, Bodies, and Culture. New York: St. Martin’s Press. 317.

Endocrine Disrupting Chemicals https://www.who.int/ceh/risks/cehemerging2/en/

Recognition of BPA as an EDC https://chemsec.org/recognition-of-bpa-as-an-edc-for-human-health-will-increase-the-protection-of-consumers/

Related blogs

Chemical attitude adjustment

Effective micro-organisms

Forgotten vegetables

Related videos

For alternatives to industrial, chemical-intensive agriculture, see some of the almost 200 training videos hosted on www.accessagriculture.org.

Awakening the seeds December 16th, 2018 by

Vea la versi√≥n en espa√Īol a continuaci√≥n.

In much of the Bolivian Altiplano, the native vegetation has been largely stripped away. A few people are doing something to replant the vegetation, but it is surprisingly difficult to germinate the seeds of native plants.

These Andean high plains were once covered by scrub land, comprising low-lying bushes, needle grasses and other hardy plants well adapted to the harsh conditions. Llamas foraged on this waist-high forest without damaging it. But as more land was plowed up for quinoa, and more of the bushes were cut for firewood, the native vegetation started to vanish.

Rural families in this part of Bolivia used to make long, narrow stacks of dried brush. But the bushes are now mostly gone, and so are the stacks of firewood.

Fortunately, explains plant researcher, Dr. Alejandro Bonifacio, people are now cooking with bottled natural gas, so they don’t need to uproot brush for firewood, but this respite has come too late. In many places, the deforestation has been so complete that there are no seed-bearing plants left to provide for natural regeneration. So, Dr. Bonifacio and his team travel around the Altiplano, collecting seed of different shrubs, planting the seed in nurseries and then taking the seedlings to sympathetic farmers who are interested in restoring the dry plains.

Seeds of wild plants will seldom germinate if simply scattered on the ground. The plants are adapted to harsh environments, and the seed enters dormancy, only to be awakened by the kiss of some specific environmental signal.

Bonifacio and his students study each plant to determine what will break its dormancy.¬† For example, the k‚Äôawchi, a small woody plant, is so adapted to this land of high winds and rocky soil that its tiny seed must be tumbled over the rough ground and ‚Äúscarified‚ÄĚ before it will germinate. Bonifacio and his team have also learned that it can be scarified by rubbing it in sand or by putting it in a weak solution of sodium hypoclorite for 20 minutes.

On the arid Altiplano, much of the native vegetation is cactus, some of it bearing delicious fruit. In a boutique restaurant in the big city of La Paz, Bonifacio was shocked to that the chef was asking for a supply of one native cactus, called achakana. Yes, achakana is edible, but it takes many years to grow to the size of a tennis ball. The Aymara people used to eat the cactus as famine food when the crops failed, but achakana could be driven to extinction if it starts to be served up in the fashionable eateries of La Paz. So, Bonifacio taught himself how to propagate it.

It was tricky. At first, the seed failed to germinate. Bonifacio learnt that as the fruit matures the seed goes into a deep dormancy. Then one day by serendipity Bonifacio discovered a little bag of fruit had had been harvested green and then forgotten. When he opened the rotting fruit, he found that all of the seeds were germinating. He proudly showed me a small, three-year old plant that he had grown from seed.

The pasak’ana is another endangered cactus that grows so tall that the Andean people once used its ribs to roof their houses. The fruit is also delicious, yet getting the seed to germinate was impossible. Then Bonifacio found that the pasak’ana seed would germinate if it was taken from immature fruit. With the help of a student he now has 1200 little pasak’ana plants, all in demand from a municipal government in Oruro which wants to plant them out.

More people than ever want to grow native plants for fruit, fodder and soil conservation, but each species has its own unique requirements for coming to life. Fortunately, there are patient researchers working to unlock these mysteries and come up with practical recommendations that can help restore degraded lands.

Scientific names

The k‚Äôawchi is Suaeda foliosa, belonging to the unfortunately named ‚Äúseepweed‚ÄĚ genus.

The achakana is Neowerdemannia vorwerckii.

The pasak’ana is Trichocereus pasacana (Echinopsis atacamensis subs. pasacana)

DESPERTANDO LAS SEMILLAS

Por Jeff Bentley, 16 de diciembre del 2018

En gran parte del Altiplano Boliviano, la vegetación nativa ha sido arrancada. Hay personas que se dedican a replantar la vegetación, pero es sorprendentemente difícil germinar las semillas de plantas nativas.

Estos altiplanos andinos estaban cubiertos de t‚Äôolares (matorrales), que inclu√≠an arbustos bajos, paja brava y otras plantas fuertes y bien adaptadas a las duras condiciones. Las llamas se forrajeaban en este bosque enano sin da√Īarlo. Pero a medida que m√°s tierra fue arada para la quinua, y m√°s arbustos fueron cortados para le√Īa, la vegetaci√≥n nativa comenz√≥ a desaparecer.

Las familias rurales de esta parte de Bolivia sol√≠an amontonar las t‚Äôolas, o arbustos, en forma de cercos largos y delgados, para le√Īa.¬† Pero la mayor√≠a de los arbustos han desaparecido, as√≠ como los montones de le√Īa.

Afortunadamente, explica el investigador de plantas, el Dr. Alejandro Bonifacio, la gente ahora cocina con gas natural en garrafa, as√≠ que no necesitan arrancar las t‚Äôolas para le√Īa, pero este respiro ha llegado muy tarde. En muchos lugares, la deforestaci√≥n ha sido tan completa que ya no quedan plantas madres para la regeneraci√≥n natural. As√≠, el Dr. Bonifacio y su equipo viajan por el Altiplano, recolectando semillas de diferentes arbustos, sembrando las semillas en viveros y luego llevando los plantines a agricultores que simpatizan con la revegetaci√≥n de las pampas secas.

Las semillas de las plantas silvestres rara vez germinan si simplemente se echan al suelo. Las plantas se adaptan a ambientes hostiles, y la semilla entra en dormancia, s√≥lo para ser despertada por el beso de alguna se√Īal ambiental espec√≠fica.

Bonifacio y sus alumnos estudian cada planta para determinar qu√© romper√° su dormancia.¬† Por ejemplo, el k’awchi, una peque√Īa planta le√Īosa, est√° tan adaptado a esta tierra de vientos fuertes y suelo pedregosa que su peque√Īa semilla tiene que caer sobre el suelo √°spero y “escarificarse” para poder germinar. Bonifacio y su equipo tambi√©n han aprendido que una alternativa frotarlo en arena o dejar la semilla por 20 minutos en una soluci√≥n d√©bil de hipoclorito de sodio.

En el √°rido Altiplano, gran parte de la vegetaci√≥n nativa es de cactus, algunos de los cuales producen ricos frutos. En un restaurante boutique en la gran ciudad de La Paz, Bonifacio se sorprendi√≥ al ver un cactus nativo, llamado achakana, solicitado para el men√ļ. La achakana s√≠ es comestible, pero tarda muchos a√Īos para alcanzar el tama√Īo de una pelota de tenis. Los aymaras sol√≠an comer el cactus como alimento en tiempos de hambre cuando las cosechas fallaban, pero la achakana podr√≠a llegar a la extinci√≥n si empiezan a ser servirla en los restaurantes de moda de La Paz. As√≠ que Bonifacio se ense√Ī√≥ a s√≠ mismo a propagarlo.

Fue dif√≠cil. Al principio, la semilla no pudo germinar. Bonifacio aprendi√≥ que a medida que el fruto madura, la semilla entra en una profunda dormancia. Un d√≠a, por casualidad, Bonifacio descubri√≥ que una bolsita de fruta hab√≠a sido cosechada verde y luego olvidada. Cuando abri√≥ el fruto podrido, descubri√≥ que todas las semillas estaban germin√°ndose. Con orgullo me mostr√≥ una peque√Īa planta de tres a√Īos que √©l hab√≠a cultivado a partir de una semilla.

El pasak’ana es otro cactus en peligro de extinci√≥n que crece tan alto que los andinos usaban sus palos para techar sus casas. La fruta tambi√©n es deliciosa, sin embargo, hacer que la semilla germine era imposible. Entonces Bonifacio descubri√≥ que la semilla de pasak’ana germinar√≠a si se tomaba de un fruto inmaduro. Con la ayuda de un estudiante, ahora tiene 1200 peque√Īas plantas de pasak’ana, todas solicitadas por un gobierno municipal de Oruro que quiere plantarlas.

Hoy en d√≠a mucha gente quiere cultivar plantas nativas para la conservaci√≥n de la fruta, el forraje y el suelo, pero cada especie tiene sus propias necesidades √ļnicas para volver a la vida. Afortunadamente, hay pacientes investigadores que trabajan para desvelar estos misterios y presentar recomendaciones pr√°cticas que pueden ayudar a restaurar las tierras degradadas.

Nombres científicos

El k’awchi is Suaeda foliosa.

La achakana es Neowerdemannia vorwerckii.

La pasak’ana es Trichocereus pasacana (Echinopsis atacamensis subs. pasacana)

Battling the armyworm September 23rd, 2018 by

In the 1500s, when men on sailing ships were casually spreading crop plants from one continent to the next, maize came to Africa. Fortunately many of the maize pests stayed behind, in the Americas. But slowly, trade and travel are re-uniting maize with its pests. A caterpillar called the fall armyworm is the latest American pest to reach Africa, and in two years it has spread across the continent, threatening one of Africa’s staple food crops.

Just as maize originally came to Africa without its American pests, the fall armyworm arrived without its natural enemies, including a couple of dozen species of tiny parasitic wasps. This has helped the armyworm to spread faster.

Governments panicked over the arrival of the fall armyworm. Some tried massive campaigns to eradicate it manually, as in Rwanda, where large teams of people destroyed the caterpillars by hand. Others began widespread campaigns to spray farmers’ fields with insecticide. Fortunately, there are alternatives to insecticides, as explained in two new videos, directed by Paul Van Mele and beautifully filmed by Marcella Vrolijks, both of AgroInsight.

The videos explain that fall armyworm damage often looks worse than it really is. The caterpillars eat gaping holes in the maize leaves and defecate what looks like wet sawdust all over the plants. But the plants usually recover and produce a full ear, in spite of early damage to the young plant.

Conveniently for farmers, the fall armyworm is also a cannibal. Each one lives alone in the maize whorl and eats any smaller armyworm that comes in. So a maize plant rarely has to suffer more than one armyworm at a time.

Although the armyworm left its specialized natural enemies behind, once it arrived in Africa it met with generalist, native predators like ants, earwigs, ladybird beetles and other beneficial insects that soon began to attack and eat the caterpillars.

The FAO (the UN’s Food and Agricultural Organization) organized farmer field schools to teach farmers armyworm ecology and control. Farmers who took these schools were soon using techniques from Latin America, such as applying soil to the maize whorls. But farmers in Kenya also created innovations of their own, such as rubbing cooking grease onto the maize plant to attract ants to kill armyworms, and sprinkling fine sand mixed with tobacco snuff into the maize whorls.

Farmer field schools are an excellent way to teach insect ecology, but field schools only reach a small percentage of the farmers who need the new information. Fortunately, the farmers who have not been able to take field schools will be able to learn from those who have, by watching the fall armyworm videos, which are available for free in English, French, Amharic, Kiswahili and Ki-Embu, with Arabic, Portuguese and Spanish versions coming soon. More translations will help to spread the word about non-chemical control of fall armyworm.

Watch or download the fall armyworm videos

Scouting for fall armyworms

Killing fall armyworms naturally

Related blogs

Armies against armies

Innovating with local knowledge

Further reading

Poisot, Anne-Sophie, Allan Hruska, Marjon Fredrix, and Koko Nzeza 2018 Integrated management of the Fall Armyworm on maize: A guide for Farmer Field Schools in Africa. FAO.

Our current knowledge of fall armyworm ecology owes a lot to earlier research in Latin America, including:

Andrews, Keith L. and JoseŐĀ Rutilio Quezada 1989 Manejo Integrado de Plagas Insectiles en la Agricultura: Estado Actual y Futuro. El Zamorano, Honduras: Departamento de Protecci√≥n Vegetal, Escuela Agr√≠cola Panamericana.

Acknowledgement

The videos on fall armyworm are developed in collaboration with the Food and Agriculture Organization of the United Nations (FAO) with funding from the McKnight Foundation’s Collaborative Crop Research Program (CCRP).

Photos by Eric Boa.

The scientific name of the fall armyworm is Spodoptera frugiperda (Lepidoptera: Noctuidae).

A healthier way to eat groundnuts June 3rd, 2018 by

Vea la versi√≥n en espa√Īol a continuaci√≥n

Rosario Cadima is an enterprising farmer who spends two days a week buying and selling potatoes at the fair in Colomi, Cochabamba. Juan Almanza, the talented extensionist we met in last week’s blog (Videos for added inspiration), had given her a DVD with a series of agricultural learning videos aimed at farmers like her. The DVD included seven videos in Spanish, Quechua and Aymara on caring for the soil. One of the videos was about peanuts (groundnuts), which like other legumes, fixes nitrogen for the soil. Rosario recently watched the DVD with her parents, grandfather and other family members. They watched all of the videos over three nights, and she recalled them vividly.

Juan was surprised when Rosario mentioned the video on groundnuts. ‚ÄúBut you don‚Äôt grow groundnuts here,‚ÄĚ he said.

‚ÄúNo, but we buy them and eat them,‚ÄĚ Rosario said. Then she explained that she and her family sometimes bought peanuts that had a thick mold on them; they would simply wipe it off and eat the apparently clean nuts.

‚ÄúSo did we,‚ÄĚ Juan admitted.

The mold is a fungus, and it releases a poison called aflatoxin into peanuts and other stored foods. The video showed all of this, and explained that people should bury moldy food, instead of eating it.

Rosario’s family is now careful to avoid eating moldy peanuts. Farmers are also consumers and a video can help them to make better food choices. Smallholder farmers don’t always have opportunities to learn about public health matters related to the food that they produce and eat. The farmer learning videos hosted on Access Agriculture are now carrying many more messages than we first imagined. And the videos are rich enough that viewers can interpret them to learn unexpected lessons.  As we have said in our earlier blog (Potato marmalade), eating is the last step in a process that usually starts with planting a seed, so it makes sense that videos for farmers can also benefit consumers.

Watch the video

The video Managing aflatoxins in groundnuts during drying and storage is available to watch or freely download in English, Spanish and a dozen other languages.

For more videos about preparing nutritious food, please see:

Enriching porridge, baby food

Tomato concentrate and juice

Making rennet

Making fresh cheese

Pure milk is good milk

Making a condiment from soya beans

Making soya cheese

COMER MAN√ć M√ĀS SANO

Por Jeff Bentley, 3 de junio del 2018

Rosario Cadima es una AGRICULTORA emprendedora que pasa dos d√≠as a la semana comprando y vendiendo papas en la feria de Colomi, Cochabamba. Juan Almanza, el extensionista talentoso que conocimos en el blog de la semana pasada (Videos para un poco m√°s de inspiraci√≥n), le hab√≠a dado un DVD con una serie de videos de aprendizaje agr√≠cola dirigidos a agricultores como ella. El DVD incluy√≥ siete videos en espa√Īol, quechua y aymara sobre el cuidado del suelo. Uno de los videos era sobre cacahuates (man√≠es), que al igual que otras leguminosas, fija nitr√≥geno para el suelo. Rosario recientemente vio el DVD con sus pap√°s, abuelo y otros miembros de la familia. Miraron todos los videos durante tres noches, y ella los record√≥ v√≠vidamente.

Juan se sorprendi√≥ cuando Rosario mencion√≥ el video sobre man√≠. “Pero aqu√≠ no se produce man√≠”, dijo.

“No, pero los compramos y los comemos”, dijo Rosario. Luego explic√≥ que ella y su familia a veces compraban man√≠es que ten√≠an un molde grueso; simplemente lo limpiaban y com√≠an los granos, que parec√≠an limpios.

“Nosotros tambi√©n”, admiti√≥ Juan.

El moho es un hongo y libera un veneno llamado aflatoxina en los maníes y otros alimentos almacenados. El video mostró todo esto, y explicó que las personas deben enterrar el maní con moho, en vez de comerlo.

La familia de Rosario ahora tiene cuidado de no comer man√≠es con moho. Los agricultores tambi√©n son consumidores y un video puede ayudarlos a tomar mejores decisiones para con su comida. Los peque√Īos agricultores no siempre tienen la oportunidad de aprender sobre asuntos de salud p√ļblica relacionados con los alimentos que producen y comen. Los videos de aprendizaje agr√≠cola ubicados en Access Agriculture ahora llevan muchos m√°s mensajes de lo que imagin√°bamos al inicio. Y los videos son lo suficientemente ricos como para que el p√ļblico pueda interpretarlos para aprender lecciones inesperadas. Como hemos dicho en nuestro blog anterior (Mermelada de papa), comer es el √ļltimo paso en un proceso que generalmente comienza con la siembra de una semilla, por lo que tiene sentido que los videos para agricultores tambi√©n puedan beneficiar a los consumidores.

Vea el video

El video El manejo de aflatoxinas en man√≠ est√° disponible para ver o bajar gratis en ingl√©s, espa√Īol y una docena de otros idiomas.

Para más videos sobre la preparación de comida nutritiva, favor de ver:

Enriching porridge, alimento para bebés

Tomato concentrate and juice

Making rennet

Making fresh cheese

Pure milk is good milk

Making a condiment from soya beans

Making soya cheese

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