New insights:
Farmers want demonstrations.
Agricultural shows are a great marketing tool.
Dealers generally buy only 2 or 3 of any type of large equipment in a given year. Expect buy-back agreements for higher sales risk equipment.



Documenting our team's journey through Engineering 245: Lean Launch Pad at Stanford during the winter quarter 2011
1.Cliff Kirkpatrick, Salinas area manager for Bolthouse points to where carrots seed lines start. Lines show where he'll cultivate. Carrots are still very small. He waits until they are at 3-4 leave stage before cultivating.
2.Typical farm tractor operator has 6th grade education.
3. Picture of weeds in an unplanted and unburned area
4. Broccoli. Cultivated very close, but many small weeds remain. Weeds grow faster than plant and if unchecked will take over taking all nutrients. Field will need to be weeded by hand in a few days.
Krisada (Mick) Kritayakirana [krisadak@stanford.edu]
1st In-Person Interview with Lee Redden
Mick is a Ph.D . researcher in Chris Gerdes’s Lab. He specializes in GPS guided control of autonomous vehicles for drifting (really cool). He just got back from a conference in Detroit on autonomous vehicles.
Images in DropBox
Mick’s main focus has been with lower level control and controllability of the car (what if you hit a mud or ice patch) and not higher level control (like is that a plant or a weed).
We talked about the accuracy of his GPS systems. He gets 2cm with RTK and 30cm with omni-star. His lab has created its own RTK system for under $4K with IMU that is similar to RTK (uses CMM for correction values). For him GPS is a tool, not what is really interesting.
Overall, Mick’s specialty was different than what we are looking into. He will introduce us to another researcher who does more image processing and CS stuff than low level control.
Del and Burtis Aufenkamp – Retired Nebraska Farmer 402-274-4685 cell
1st Phone Interview with Lee Redden
***Key Insight***
Organic farming practices allow people who want to get into small “hobby” farming the opportunity because they would quickly become limited on by acreage (Like before combines). Making a machine to make organic row crop farming more productive would allow bigger modern farms the opportunity to go into organic farming without large labor crews.
Del is a retired farmer in Nebraska. What/ Why I interviewed him was because he farmed organically before fertilizer, herbicide, and pesticides were created. This brings up a point that the methods used in the 30’s are the same methods that are becoming more popular today. It also is interesting from a trends and historical point of view.
When he was growing up his family has a 240 acre (big back then plot) and one tractor (they were modern). His family would not have wanted more land because there was not enough labor to work a bigger field.
Currently his son (Arlin) farms about 5,000 acres and would farm more with the same machinery if he could obtain better leases for ground. This shows the trend of farming to sustain your family to farming as a big business where many people are being squeezed out by bigger farms.
Terry Folton – Small time organic farmer in Nebraska 402-430-1551 cell
1st Phone Interview with Lee Redden
****Key Insight*****
Terry brought up a good point about organic farming. It can be done with old equipment that has been in the shed/weeds for 30 years. When he started he bought a tractor for $2500, cultivator for $500, and disker for $500 so a small farmer can get into organic farming, with its lower yields but higher prices for corn. There is a tradeoff between more labor and less land is key.
I think there is a large group of people who want to have a small family farm but can’t because farming has become a big business. Organic might open up the possibility that they can farm with smaller plots of land.
Also, all farming was organic farming at one point 80 years ago.
Figure 1 Images of modern farming
Called Terry Folton for initial Interview to hear about how he operates his organic row crop farm in Nebraska. His “cash crops” are soybeans and corn that he rotates every other year and sometimes plants
1. Oats
2. Alfalfa
3. Clover
After planting alfalfa he then plows it under for fertilizer. He has a 40 acre farm (really small).
He got into organic because of his wife (influencer). He will probably switch back to conventional because he is having another kid and it is too much work to keep up with. It took 3 years of growing just wheat on the field to become certified organic. His neighbors often look at his field as weird because weeds grow in it. Modern farming uses herbicides and no weeds grow and the corn looks really healthy. Organic crops look weaker and receive criticism from peers. (neighbors are influencers)
When Terry got into it the government gave a $50/acre subsidy for switching to row crop.
$$$$$
Organic corn is ~2x the price of normal corn.
Normal Acre yield is 125 bushels -> organic is 95-100 bushels / acre
Fertilizer is a big let down in organic farming. He paid $150/acre for fertilizer (specially nuggeted chicken poop) and then had to scrape it across the ground.
Technology
Currently he has tried the flame burner to burn off the weeds. The tills the field a few times before planting and then cultivates in-between the rows after that. He uses normal farm equipment in his operation but it requires power-washing after used on modern farming.
He hires a team from his construction company to use corn knives to cut weeds in beans and corn.
The weeds are typically taller than the 30-36” rows.
Terry will send me names of a few people he does business with that led him into farming like Martin Kleinschmidt (just e-mailed)
Company: Stanford Ground Transportations
Contact: Mary Nolan, maryn@bonair.stanford.edu, 650 924 3138
Company / Operations:
1. How large is your operation? (i.e. how many acres?)
2. How often do you mow?
3. How many people are involved in mowing? What is a typical salary? Is labor a significant cost-driver for you? Are they your direct employees? Are they unionized?
4. How many machines are used? What is the most common brand / machine used. What type of machines do you use? How much does each mower cost? What is there useful life
Typical mower: golf cart size ($18k)
Different sizes ranging from 21inch cutting width to 48inch. Use of type depends on terrain and corridor widths. Usually: the larger the loan the larger the mower.
Value Proposition
Assuming the cost for an automated machine can be recovered in 1 year through labor reduction, would you buy this product? How much labor do you think it could you save?
2. For mowing: Is labor safety an issue? Could autonomous machines solve it?
4. Is idle capacity an issue? Would you benefit from using autonomous machines by night?
5. What are the quality criteria for mowing/weeding? Is human error a problem?
Customer Relationships/Channel:
1. Where do you buy your current equipment?
2. What level of confidence would you want before you buy? Is a demonstration enough? Or a trial period?