Tending to Orphan Crops of the World

By Laura Dorle, Intern

Peanut's harvested from UMN plot in 2011

Last summer, CTI and the University of Minnesota (UMN) collaborated in growing six “Orphan Crops”: tef, finger millet, pearl millet, sorghum, grain amaranth, and groundnuts (peanuts).

Orphan crops are important food crops for subsistence farmers in many African as well as Asian and South American communities, as they have a strong cultural importance, and are often more nutritious and drought resistant than many of the large commodity crops.

Most agricultural research has focused on increasing the yields of commodity crops, such as wheat or corn. However, simply growing more food is not enough—not when between 15-50% of crops are lost after harvest, often due to post-harvest spoilage and inefficient processing methods. That is why CTI is committed to filling some of the gaps in the research by working on orphan crops, focusing on the post-harvest side of the value chain helping bring rural farmers out of subsistence living while improving their livelihoods.

Tiffanie Stone, a recent graduate of the University, was the student intern on the St. Paul Campus plot last year with the guidance of Agronomy Professor Paul Porter and other UMN and CTI colleagues.

This year, we are at it again, and I’ve joined the team, along with many of the great folks from CTI and UMN who originated the project.  I’m Laura Dorle, student intern with the Orphan Crops project and a junior in the Environmental Science, Policy, and Management Program at the U. With a particular interest in food, agriculture, and international development, and a great desire to learn a lot more in those areas, this project was the perfect opportunity to do so.

The plot has been off to a good start thus far. The crops were planted in late May. In addition to the crops from last year, we also planted cowpeas, fonio, quinoa, mung beans, and Bambara groundnuts. Most have been doing very well, despite heavy rains early and intense heat. As usual, there is group of stealthy weeds that are thriving right along with them, and a lot of volunteers have been out there working hard to battle them, the leafhoppers, and Japanese beetles.

When the crops begin to mature at the end of the summer through the fall, we’ll be able to use them to do field tests of CTI’s post-harvest equipment including prototypes of groundnut processing technologies that are being developed for a program in Malawi and Tanzania funded by the McKnight Foundation. We will also be testing CTI’s new pearl millet processing suite on additional grains.

I’m really excited to be working on this project. Be sure to stay tuned. More updates to come as the process continues! And we’ll be organizing some field visits starting in mid-August!

~Laura

Lost Crops of Africa: African Crops (and Weeds) Thriving

Groundnuts (peanuts) growing at the CTI/UMN plot

By Tiffanie Stone, CTI Intern

Everything is growing and thriving, including the weed population. From day one, we knew that weeds would be the biggest obstacle to overcome with this project. Most of the crops were planted in 30 inch rows which can be cultivated. The only weeds we need to worry about with these are within the rows, thanks to Dick Winkel and his cultivator. Watching Dick handle this one- row cultivator is like watching a master at work.

The teff varieties and the amaranth were planted in 6 inch rows which makes it impossible to cultivate and difficult to hand weed. To help control the weeds we used herbicides. We sprayed Select on the amaranth two weeks ago which killed all the grass weeds. It took several days for Select to kick in, but it kicked all the grasses effectively. Now the biggest problems are the many off types and red root pigweeds that need to be pulled by hand. This week we sprayed the teff with a broad leaf herbicide called Arctic 3.2. It worked like a charm; the effects could be seen the very next day. Hopefully, they will kill the broad leaf weeds completely. Grasses, especially barn yard grass still needs to be pulled out from the teff, but the herbicide was a huge help.

Due to the warm weather we had quite a leaf hopper population in the groundnuts (peanuts). Leaf hoppers are partial to legumes, so only the groundnuts were infested. They were just starting to show signs of distress. Thankfully, we were able to diagnose and spray with an insecticide to take care of the problem. The peanuts may need to be sprayed every two weeks. We will spray on at an as needed basis.

Having the support of the many great people at the U of M and at CTI has been invaluable. I don’t believe in magic elves, so I know some of you are weeding when I am not here. I see the evidences all the time. You are all making this project possible. I want to end with a big thank you to all who have contributed to the project in any way, shape or form. I so appreciate it!

Rescuing the Lost Crops of Africa

For the second time in just three years, we are facing a global food crisis as a result of rapidly rising food prices. In developing countries, where individuals often spend half of their income on food, record high food prices have pushed 44 million people into extreme poverty and hunger since June of 2010. As the world’s population grows, spikes in food prices are expected to continue, and important safety nets such as emergency food aid will not be able to keep up.

CTI is committed to creating inventive, sustainable solutions to address these challenges. Simply growing more food is not enough—not when between 15-50% of crops are lost after harvest, often due to post-harvest spoilage and inefficient processing methods.

In our Saint Paul workshop, CTI’s engineers have developed a prototype grain processing system that significantly reduces post-harvest losses, essentially doubling the amount of pearl millet grain farmers can produce. Though we are thrilled with the results, gaining access to pearl millet grain for testing prototypes has been a challenge. Pearl millet may feed 500 million people in Africa and Asia, but you won’t find freshly harvested pearl millet to test in Minnesota. While some grain stocks have been made available from generous donors such as USDA in Georgia, without ready access to pearl millet and other African crops, CTI’s engineers often have to send even initial prototypes oversees for testing during harvest seasons — a costly, slow process and a barrier to innovation.

The Lost Crops of Africa project is a collaboration between CTI and the University of Minnesota (UMN) to grow seven African crops on one acre of land at UMN’s Saint Paul campus. With assistance from Professor Paul Porter and student assistant Tiffanie Stone, CTI will grow tef, finger millet, sorghum, fonio, pearl millet, grain amaranth, and groundnuts for processing. Although these crops are often unheard of by those living in more developed countries, they are commonly grown in different parts of Africa, where millions of people depend on them for their daily sustenance.

CTI will use the harvested African crops to develop and test post-harvest farming devices and tools for subsistence farmers. Growing the crops so close to home will allow our engineers to more easily refine new equipment to suit a particular crop. This way, when CTI brings new prototypes to Africa, we can minimize last minute “surprises” and reduce the time needed to reach user-acceptable solutions. Ultimately, this means CTI will be able to deliver more appropriate technologies faster and at a lower cost to our donors and our end-users.

In addition to the one acre plot of land, UMN has generously provided a student assistant to help oversee the Lost Crops of Africa program. Tiffanie Stone is studying Applied Plant Science and International Agriculture at UMN. Tiffanie will be contributing to CTI’s blog, where she’ll write updates on the challenges and triumphs that are thrown our way.