But now, you can visit a planting where the process is crystal clear - and it's a bit easier to get to than SE Minnesota; north central Ohio; about 15 minutes off of Interstate 90.
The planting of Badgersett neohybrid hazelnuts as part of the Oberlin College Adam Joseph Lewis Center for Environmental Studies is a stellar example of “how to do it right”. The establishment success, growth rate, and early nut bearing in this planting are simply the best it has ever been done- and approaches even theoretical limits. It may be a long time before it is done better, anywhere. And- we learned some things here that may change future plantings.
The Lewis Center is globally recognized as one of the most important examples of “green architecture”. The hazel planting was conceived both as a demonstration of a biomass fuel crop, and an ongoing living experiment used for teaching. The decision to immediately implement an experiment in fertilization was directly responsible for the outstanding success - meticulous individual fertilization was performed, starting in fall of 2011.Planted under the guidance of Philip Rutter, Badgersett founder and CEO, the field was installed June 14, 2011, on a bright sunny day, with abundant participation by students and faculty. Note that summer, and sunny days, are not usually associated with tree planting success - but the tubeling system worked exactly as planned.
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| June 14, 2011 |
As always recommended, the newly installed tubelings were provided with 0.5 to 1 gallon of water, on the day of planting.
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| June 14, 2011 |
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| Oct, 2011 |
By October of 2011, the tubelings had made very little top growth and were close to disappearing under the white clover that had been planted as cover, nitrogen, and rabbit diversion. Some judicious mowing next to the rows and a little hand weeding kept them with their heads up in the sun.
This is the usual experience with the tubelings - they will look unimpressive, even worrisome in year one. Long years of comparative research, however, have consistently shown that by year 3, they will far outgrow bare-root dormant transplants. And that was demonstrated once again at Oberlin. The ridges from the compost amendment are still evident here; but you will see they have subsided in the 2013 photos.
Planted in 2011. So far we have been unable to locate and photos from 2012. The planting looked like not much of anything that year. But regular care, mowing of grass/clover, and most importantly - fertilization - continued on schedule.
Remember these plants were seeds in spring of 2011, outplanted when they were around 3 months old. In spring of 2012, they were one year old. In spring of 2013 — two photos. From this point on, we have photographs; and they are — astonishing. Pay very close attention to the dates on the following photos:
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| May 23, 2013 |
At right is the field on May 23, 2013; these plants are actually not quite 2 years old. Already, however, as big as the best bare root nursery stock ever gets.
And below - is the field in the same year; 2013; but on August 5. In 2 months time (count them) the same plants are now easily equal in size to 5 year old bare root transplants.
And below - is the field in the same year; 2013; but on August 5. In 2 months time (count them) the same plants are now easily equal in size to 5 year old bare root transplants.
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| August 5, 2013 |
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| August 5, 2013 |
Above, with the Oberlin hazel team at the time, are the prize-winning hazels in the field; the same day; August 5, 2013. These plants are 3 1/2 years old —from seed. The tallest member of team is 6’3” tall - the tallest hazel is well over 7 feet tall.
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| May, 2014 |
Clusters of nuts showed up on many plants in 2014; indicating that plant mass is likely more significant than plant age in determining onset of nut bearing.
Harvest for class analysis in August, 2015 - plants are now 4.5 years old. The photovoltaic array for the Lewis Center is in the background.
To the right: this year, 2016; the plants are 5.5 years old. All of the bushes are bearing crops; some of them extremely heavy. If you are familiar with the patterns of neohybrid hazel branch structure - you can tell this plant bore a crop last year, too -
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| August, 2015 |
Harvest for class analysis in August, 2015 - plants are now 4.5 years old. The photovoltaic array for the Lewis Center is in the background.
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| July 2016 |
To the right: this year, 2016; the plants are 5.5 years old. All of the bushes are bearing crops; some of them extremely heavy. If you are familiar with the patterns of neohybrid hazel branch structure - you can tell this plant bore a crop last year, too -
This is, simply, the best and fastest these neohybrid hazels have been grown in the field
The Lewis Center neohybrid hazel field, July 13, 2016. 5.5 years old. Unfortunately, the young man in the photo is 6’5” tall - making the plants look a little smaller than they actually are (humor.). The very large hazel just to the right of him is a G-029 tissue cultured reference clone, and was 4 years old at planting; not a tubeling.
Note that the field is fully populated; initial survival over 90%. It’s not hard to duplicate this success with these plants – it’s just necessary to follow the instructions – all of them — and remember, they are NOT bare-root dormant nursery transplants.- and treating them as if they were; will kill them. Note also that EFB (Eastern Filbert Blight) is present on campus; this is what genetically fixed EFB resistance looks like.
The Lewis Center neohybrid hazel field, July 13, 2016. 5.5 years old. Unfortunately, the young man in the photo is 6’5” tall - making the plants look a little smaller than they actually are (humor.). The very large hazel just to the right of him is a G-029 tissue cultured reference clone, and was 4 years old at planting; not a tubeling.
Note that the field is fully populated; initial survival over 90%. It’s not hard to duplicate this success with these plants – it’s just necessary to follow the instructions – all of them — and remember, they are NOT bare-root dormant nursery transplants.- and treating them as if they were; will kill them. Note also that EFB (Eastern Filbert Blight) is present on campus; this is what genetically fixed EFB resistance looks like.
If you wish to visit; the Oberlin College Lewis Center welcomes visitors {they get plenty coming to see "The Most important green building constructed in the last 30 years" according to Architect Magazine (July 2010)}. It's easy to find using any modern map app; or you can just ask the friendly folk to direct you. If you would like someone to show you around, Ben Hobbs, the Facility Manager will try his best to be available; best arranged ahead of time: bhobbs@oberlin.edu or cell phone is 216-407-1351.
Phones: 815-275-1632 or 815-598-3264.
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