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The diesel wheat mills May 5th, 2019 by

The people of Yuraj Molino (“white mill”) live surrounded by wheat fields, in a large valley near the small town of Pocona, Bolivia. As the name suggests, there have been flour mills in Yuraj Molino for some time. But by the late 1970s, customers were complaining of how long it took to grind the wheat; they got tired of waiting all day for their flour. And then millers began to notice that with the warmer, dryer climate, the streams no longer carried as much stream water, to power the mills. Some of the mills closed. Ana and I visited the ruins of a miller’s house, the yard full of weeds, with the mill still there and a calendar for 1984 still on the wall.

Other mills survived. Local miller Juan Torrico showed us his old mill house, with the canal that once brought water from the mountains. In 2001, Juan’s brother Sergio designed a new mill at the mill house. He bought two large, new stones from a master craftsman near Epizana, Cochabamba, who still carves the massive limestone wheels. Sergio bought a diesel engine, and a used truck axel. The brothers built a new mill house and mounted the stones in it, fixed the axel upright below them, and then used a steel rod to connect the axel to the diesel engine, which Sergio put in the next room. This way they kept the diesel smoke and the engine noise out of the mill room. They don’t want the smoke to spoil the delicate flavor of the flour, which people love.

Five or six other mills in the valley are also sited where old water mills used to be, near running water. But most of them are also now powered by diesel motors.

One by one the old water mills around Pocona adapted to diesel, and one or two are still using water power. The change to diesel was gradual and there was never a break in service, never a time when the farmers had no mills to go to. The mills themselves also stayed in the same places. Although the mills were originally sited to be near water, they were also near the wheat fields, and the millers owned the land where their mills were, and they had community ties to the area. So, the diesel mills stayed right where the water mills had been.

There is no research institution providing expertise on how to motorize Bolivian water mills. At some point, the millers themselves had to blend their traditional knowledge with a lot of new information about motors and old truck parts. As always, people in rural areas are constantly creating and making sophisticated adaptations to changing conditions.

The enemies of innovation August 26th, 2018 by

Sometimes even rational people fight innovation, as we learn in this recent book by the late Calestous Juma, a Kenyan scholar who taught at Harvard and who enjoyed the rare distinction of being elected as a fellow of the Royal Society of London and a foreign associate of the US National Academy of Science.

To condense Prof. Juma’s nuanced and complex thesis, there are two good reasons to oppose innovation, and one surprising outcome.

First, early versions of an innovation are often expensive, unwieldy and simply not very good at getting the job done. Thomas Edison’s first electrical wiring relied on noisy generators, was a fire hazard, and accidentally electrocuted 17 New Yorkers to death in two years between 1887 and 1889. These problems were eventually ironed out, but some of the failings of an innovation are never fully addressed. When tractors began to replace horses in the USA in the 1920s, three decades after they were invented by John Froelich in 1892, critics complained that the tractors (and automobiles) were wasteful and that buying, fueling and repairing them would place a financial burden on farmers,

Second, an innovation is opposed by the social network that uses and supports the incumbent technology. Electric lights were competing with a well-entrenched and profitable natural gas industry. Farriers, veterinarians and harness makers relied on horses for steady business and income. Older workers with the skills and experience to use an existing technology may resist an alternative. The Luddites were not a bunch of maniacs who liked to break things; they were skilled weavers in the 19th century who correctly realized that mechanized looms would replace experienced workers with unskilled ones.

Fortunately, the dynamic tension between the old and the new can be as creative as the original invention, refining the timeworn technology or promoting innovative social structures.

For example, margarine was invented in France in 1869 and was being manufactured in the USA by the 1880s. At the time American dairy farmers were poorly organized, but led by the butter factories, they eventually formed the National Dairy Council. This powerful lobby group harassed margarine makers, leading to legislation in five US states which required margarine to be dyed an unappetizing pink. They also spread disinformation, reporting bogus studies that claimed that margarine stunted children’s growth, for example. But nineteenth century butter was not the choice food that we know today; it was often rancid and adulterated with chemicals. Competition with margarine forced butter manufacturers to make a better product. And in the ultimate compromise, some spreads now blend butter and margarine.

In the end margarine’s saving grace was not technical, but social. In the 1940s US margarine makers switched from imported coconut oil to American soybean and cottonseed oil, acquiring farmer allies that allowed them to fend off the big dairy interests and find a permanent place at the table.

In the end, the innovation may never completely defeat the incumbent technology, which may settle into a competitive niche of its own. The gas industry fought electricity with all the imagination it had, creating gas-powered versions of every electrical appliance invented. There was even a gas radio in the 1930s (it had the added advantage of giving off a little extra heat). Electricity never completely replaced natural gas, which still provides heat and energy, but the rivalry lives on in the competition between gas ovens and electric models.

There are some clear lessons here for agricultural scientists, who are often dismayed when farmers do not immediately adopt ideas derived from research. As we learn from the optimistic Prof. Juma: your invention may have potential in the long run, but in the short term it may still have bugs that need to be fixed. Innovations often seek to replace existing technologies that have proven advantages, and are familiar to users; the struggle between old and new can lead to creative solutions.  Specifically, researchers can use farmer field schools (FFS) or other experiences to learn about the farmers’ point of view and work together to adapt innovations to meet their needs and circumstances.

Further reading

Juma, Calestous 2016 Innovation and Its Enemies: Why People Resist New Technologies. Oxford University Press. 416 pp.

The Common Stream April 8th, 2018 by

A few months ago, Eric Boa (who writes this blog with Paul and I) sent me an extraordinary little book, The Common Stream, by Rowland Parker. It’s a singularly remarkable history of Foxton, a village in Cambridgeshire, England.

It may be the most complete history of any village anywhere, which is surprising given how ordinary the village appears today. Yet Parker, who lived there for most of his adult life, used Foxton to represent changes occurring to agricultural communities over the centuries across much of England, and to some extent elsewhere.

Parker picks up his story in ancient times, when a certain Roman living in his comfortable villa near what is now Foxton, forced the native Britons to move their huts onto straight streets. This theme of rich, powerful men knowing what was best for the peasants would continue for some time.

By the fifth century the Romans had left, and the Saxons began their slow, leisurely invasion. Over two or three generations, they rowed up the rivers, stopping where they wished, and settling on the best land, where they farmed and kept what they harvested. But it was too good to last. By the 900s land was being appropriated by lords and religious orders. By 1086, 90% of Foxton’s 200 inhabitants had almost no personal possessions. Most of the land belonged to a nun, the Abbess of Chatteris, whose word was the law. The common people had no money, but lots of work. They were old by the time they were 40. The diet was coarse bread, gruel, cheese, vegetables, pease (peas and other legumes), besides boiled mutton, and boiled bacon with the occasional chicken, egg or rabbit. And lots of ale.

By 1250 two-thirds of the peasants were still virtually enslaved, but some had been freed and self-government began to emerge. The villagers elected their own officials, such as constables and “ale tasters”, a popular position that obliged the office holder to visit the homes of people who made ale and take a sip (or more) to see that the brew met the standards for proper beer.

The Black Death killed half of the people of Foxton around 1348. By 1485, perhaps in response to the enduring loss of population, or a growing sense of social injustice, the lords of the manor and the abbeys began to set their slaves (bondsmen) free. But it was only a partial freedom. Peasant farmers had to pay a large entry fee to the manor to occupy land and a house. Still, the change meant that common people had a little money to spend and by the 1500s there was a weekly market in Foxton, selling meat and butter.

Relative prosperity improved through the 1550s, when villagers rebuilt Foxton, crafting fifty houses that were so well made that by the 1970s twenty of them were still standing, including one that Rowland Parker lived in.

But rural poverty was an enduring problem. Sometimes the poor were whipped, to stir them into productive action, but that did no good. Paupers could be paid a few coins from the “poor rate,” a local tax levied on farmers. Destitute women were also employed to collect stones (for road repair) by hand from the frozen ground in the winter, by the cartload.

In one strange episode in the 1860s “coprolites” were discovered just under the topsoil in the fields surrounding Foxton. These were nuggets of phosphorous that could be sold as fertilizer. Landowners hired gangs of men “as strong as horses” to peel the earth back like a carpet, remove the coprolites, and put the soil back. It was a short-lived boon to agricultural wage workers.

By the 1880s most villages in England had a railroad station. People left farming, if not the villages, commuting to industrial wage work. This was followed by an agricultural revolution led by machinery and fertilizer. In the 1880s twenty men would harvest a wheat field with scythes, walking together in a line. By the 1970s one worker in a combine harvester would bring in the grain. Parker notes ruefully that from 1885 to 1970 crop yields quadrupled as the workforce declined dramatically. One man replaced ten. “There is now more farming done in Foxton than there ever was before and hardly any people are doing it.” Poverty was finally eliminated after the Second World War by the introduction of universal social welfare. Parker observed that people were better fed, better dressed and that all the children were going to school. Modern farming has eased drudgery and improved harvests. Life is better now than it was in the Middle Ages

Rowland Parker was Eric Boa’s French teacher at The Grammar School for Boys in nearby Cambridge. It was only some years after leaving school that Eric learned that the austere Mr. Parker had spent many of his weekends interviewing elderly villagers and translating local manuscripts from Latin and Old English.

In 2014, Tim Martin reviewed The Common Stream for The Telegraph, in a series on the A to Z of forgotten books. Martin called Parker’s book a “miniature classic of social history.” Indeed it is, and it is well worth reading.

Further reading

Parker, Rowland 1976 The Common Stream. Frogmore, St. Albans, UK: Paladin.

Related blog

Mending fences, making friends

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.

The blacksmiths of Ironcollo October 8th, 2017 by

Andean farmers have used iron tools since colonial times, including plows, harrows, picks, shovels and hoes. A favorite Bolivian tool is a long, triangular hoe, known as the qallu (Quechua for “tongue”). The qallu is ideal for working the steep rocky potato fields. Many farmers never leave home without their qallu.

In the valley of Cochabamba, the village of Ironcollo is home to the blacksmiths who make qallus and other tools. Ironcollo is strategically sited near the small market city of Quillacollo on the valley bottom. Farmers coming from the high Andes to shop in town can stop in Ironcollo on the way and have tools repaired or buy a new one.

Ironcollo is an old place. It is built over an archaeological mound, a large, artificial hill created gradually over the centuries as each generation of pre-Colombian people built their houses on the ruins of the people before them. Today the villagers are unsure exactly how long their ancestors have been working iron in Ironcollo, though they told me they were well established before the War for Independence from Spain, and that they made weapons for fighters in the Battle of Falsuri (1823). I have no reason to doubt them.

The narrow main street of Ironcollo is lined with shops, many of them owned by blacksmiths. I saw a large, industrial-made wood and leather bellows lying in the dust by one front gate. The label, pressed into the hardwood, says that the bellows is a model No. 102, made by Alldays and Onions of Birmingham, England. A museum in Marlsborough, New Zealand displays another copy of the same model, imported from Britain before 1888. Not only have the blacksmiths of Ironcollo been connected to global trade for some time, but their nineteenth century ancestors were making enough money to buy themselves decent equipment.

But times are tough now in Ironcollo. Where there were once 70 blacksmiths shops, there are now 30. Cheaper steel tools from Brazil and China are eating into their market. Not that the blacksmiths are going down without a fight. In 2011 they started holding an annual fair, inviting the public to stroll through the village and see how iron tools are heated in a charcoal forge until they are red hot, and then skillfully pounded into shape on an anvil.

We saw many tools on display in Ironcollo, but none of the larger ones were fitted with handles. No one was even selling handles at the fair. The smiths’ customers were still largely hardworking smallholders who know how to whittle a tree branch into a hoe handle.

Some blacksmiths have responded to changing market demands, making coat-racks and decorations for city people.My wife Ana and I met a woman blacksmith, doña AidĂ©, who took over her husband’s forge when he died, so she could support her children. The kids are grown up now, but she continues to make heavy-duty rakes that she designed herself. She also invented a new recipe, which she calls “the blacksmith’s dish” (el plato del herrero): steak cooked right on the hot coals of the forge, which she sells to visitors at the annual blacksmith’s fair.

An older blacksmith, don Aurelio, designed a new style of blacksmith forge, with a built-in electric fan. This saves labor, since the blacksmith doesn’t need an assistant to pump the bellows to fan the flames of the forge. Don Aurelio’s family makes and sells the electric forges to other smiths in the community, and beyond.

In 2013 the blacksmiths of Ironcollo formed an association. Community leader Benigno Vargas explained that they hope that this will be a way of getting support from the government, which is much more likely to fund a community group than unorganized family firms. But with or without official support, for now local farmers are still keeping the blacksmiths in business.

These blacksmiths have technical innovations, like the electric bellows and the coatracks and other metal products, but they have also innovated socially, with the annual fair, a professional association, and even a new way to prepare steak.

Near the end of the short main street, an elderly farmer stops us to admire the heavy, green rake we bought from doña Aidé. The farmer is from a remote village, and speaks little Spanish. She asks us in Quechua how much we paid for the rake before she marches off, wondering if she should invest 40 pesos in such a fine tool. Innovative farmers need imaginative tool makers who are tied into the local tradition of farming.

Further viewing

Family farmers make many of their own tools. Access Agriculture has videos for example on making a rabbit house, making a quail house and other devices. Many of the videos show how farmers use different tools. When farmers watch the videos, they are often interested in the tools they see in the videos.

Farmers around the world also rely on mechanics and other artisans to make and repair some tools, like the conservation agricultural tillage equipment for tractors and tools drawn by animals.

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