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This profile was last updated on 8/5/15  and contains information from public web pages and contributions from the ZoomInfo community.

Extension Soybean Specialist

Phone: (919) ***-****  
Email: j***@***.edu
Local Address:  North Carolina , United States
North Carolina State University
Campus Box 7013
Raleigh , North Carolina 27695
United States

Company Description: The mission of North Carolina State University is to serve its students and the people of North Carolina as a doctoral/research-extensive, land-grant university....   more

Employment History

88 Total References
Web References
Jim Dunphy, North ..., 5 Aug 2015 [cached]
Jim Dunphy, North Carolina State University Extension soybean specialist, discusses his maximum yield dryland soybean research with Steve Barnes, a Washington County crops consultant.
Dunphy is conducting a maximum yield soybean trial at Haslin Farms. He is examining the benefits of non-foliar yield enhancements, in furrow enhancements and seed treatments. He said seed treatments have a place in improving soybean yields.
Jim Dunphy, North Carolina State University Extension soybean specialist, is conducting a maximum yield dryland soybean trial at Haslin Farms where he is examining the benefits of non-foliar yield enhancements, in furrow enhancements and seed treatments. In his comments at the field day, Dunphy said seed treatments do have a place in increasing soybean yields.
Jim Dunphy, the state's ..., 5 June 2015 [cached]
Jim Dunphy, the state's Extension soybean specialist at North Carolina State University, is optimistic the state will soon reach that magic number.... More
April 2001, 1 April 2001 [cached]
"This year's crop had probably the best growing season in quite some time," remarked James Dunphy, contest administrator and soybean specialist in the Crop Sciences Department at NCSU."Unfortunately, market prices are low thus denying growers the opportunity to recoup some of their losses suffered from weather-related conditions of the past two years," he added.
"The aphids are yellow and colonize in clusters on soybean leaves," said Dr. Jim Dunphy, Extension soybean specialist at NC State University."Apparently the aphid does not kill the plant but may reduce yield potential in the mid-western states where it has been identified.Also, it may not be a threat in our area because we do not have the buckthorn weed as an alternate host for winter survival," Dunphy added.
Jim Dunphy, Extension ..., 17 April 2015 [cached]
Jim Dunphy, Extension soybean specialist at North Carolina State University, is optimistic the state will soon reach that magic number.
"We haven't documented 100 bushels in North Carolina but soybean producers are working to get there," Dunphy said. "The North Carolina Soybean Producers Association has an offer out of $2,500 to the first guy who goes over 100 bushels. If he's a member of the American Soybean Association when he plants the field, they'll double it to $5,000."
Dunphy said North Carolina has gotten close to producing 100 bushels per acre. The record was set in 2006 by the McLain Farm (Mike, his brother Phil, and Phil's son Phillip) in Iredell County which recorded a yield of 92.9 bushels per acre. "Nobody has bested that yet," Dunphy said.
Using check-off funds from the North Carolina Soybean Producers Association, Dunphy will do a maximum yield study this year where he and Ron Heiniger, professor of crop science and cropping systems specialist at N.C. State, will see how high a dry-land yield they can achieve at various locations across the state. "I don't know how high a yield we'll get, but I expect it to be easier to achieve with some varieties than with others," Dunphy said.
While varietal selection is certainly important to achieve maximum yields, timeliness may actually be a more important factor. For example, Dunphy said it is critical to plant soybeans on time.
"I'd want to plant early enough to be sure I get the middles lapped with 3-feet tall plants, to capture as much sunlight as soybeans know how to capture," Dunphy explained. "What that date turns out to be depends somewhat on the maturity of the variety used, since later maturing varieties have more days to get that big. I'd a little prefer to see the reproductive growth occur earlier than later, but not at the expense of having too small plants."
Timeliness and attention to detail are also critical when managing weeds, insects and diseases, Dunphy stressed.
"If you go out on Monday morning and you find you have some little weeds coming up, you're going to have to spray them this week, not next week. Get them sprayed on time, when they are still little. Don't wait until Friday to spray; you need to spray on Tuesday or better yet Monday afternoon."
If the soybean crop doesn't find enough nutrients left over from the previous crop, be it corn, cotton or wheat, farmers should add phosphorous and potash directly to the soybeans to achieve top yields, Dunphy said.
"Very high yielding soybeans will require more fertility than average-yielding soybeans. That may or not be the key to getting the big yields, but if I don't have a high enough fertility level, I certainly won't achieve top yields."
"Achieving 60 bushel yields takes about 48 pounds of phosphorous per acre, while achieving 100 bushel yields takes about 82 pounds of phosphorous," Dunphy said.
North Carolina State ..., 8 July 2013 [cached]
North Carolina State University Soybean Specialist Jim Dunphy says planting soybeans in North Carolina in July is 'iffy' at best.
For those forced to plant soybeans in July, Dunphy says, "I'd raise my target population a little, to 2.5 plants per foot of row in a 7-inch drill, or 12 plants per foot of row in 36-inch rows.
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