Weather delays corn plantin
but high yield potential exists
for corn planted by mid-May
By Jeff Coulter, Extension corn agronomist
ST. PAUL, Minn. (5/01/2014)— The April 28 USDA crop report indicates only 4 percent of Minnesota corn acres are planted with the majority in southwestern Minnesota. In comparison, the 5-year average (2009 to 2013) is 30 percent. Many growers may not be able to resume field work until at least this weekend or early next week due to the recent and expected rainfall. This has led to questions about corn yield potential when planting is delayed.
University of Minnesota planting date studies show highest corn yield typically occurs when planting is completed by mid-May. In a study from 2009 to 2011 at Lamberton, Morris and Waseca that was funded by the Minnesota Corn Growers Association, average grain yield was within 98 percent of the maximum if planting was completed by May 15. Another study from 1988 to 2003 at Lamberton showed a May 15 planting date resulted in grain yields that averaged 95 percent of the maximum. These same studies found corn yield averaged 92 to 95 percent of the maximum when planting occurred by May 20.
Yield advantages associated with early planting typically are greatest when there is warm weather and rapid growing degree day accumulation between the first and second planting date windows. Corn emergence date is not likely to differ greatly between April 21 and May 5 planting dates this year given the limited growing degree days that have accumulated since April 21 and are expected over the next few days. This will likely result in similar grain yields between these planting dates, assuming that stand establishment with the early planting date is adequate.
Avoid tillage and planting when soils are too wet
Timely planting is important, although it is equally important to avoid tillage and planting when soils are too wet. In general, a field is fit for seedbed preparation when soil in the depth of tillage crumbles when pressed together rather than forming a ball.
Sidewall smearing can occur when double-disc openers cut through wet fine-textured soil, resulting in compacted soil around the seed that is difficult for nodal roots to penetrate. In addition, seed furrows can open up after fine-textured soil dries following wet conditions at planting, resulting in poor seed-to-soil contact and poor stand establishment.
Stick with planned hybrids for now
A general guideline for Minnesota growers is to stick with the planned seed choices until around May 21 to 25 in order to maximize economic return. This is supported by a University of Minnesota study conducted at Lamberton and Waseca in 2010 to 2012 that was funded by the Minnesota Corn Growers Association. In this study, highest grain yield occurred with mid- and
full-season hybrids (99- and 104-day relative maturity), even when the average planting date was as late as May 24. However, grain moisture at harvest was 2.3 percentage points higher with the 104-day hybrid than the 99-day hybrid with the late planting date (May 24).
When corn planting occurs between May 25 and May 31, it is wise to use hybrids that are 5 to 7 relative maturity units earlier than full season for the region. This reduces the risk of the corn being frozen in early autumn prior to reaching maturity.
Planting grain corn after May 31 carries high risk in Minnesota. If corn must be planted after May 31 in Minnesota, growers can reduce their risk by planting hybrids that are about 15 or more relative maturity units earlier than full-season hybrids.
At June 5 or later, most growers in Minnesota that still need to plant should consider planting a crop other than grain corn if feasible. However, the decision of what to plant is also influenced by factors such as fertilizer applied and seed availability. These factors will need to be evaluated on a field by field basis.
Expected yield for planted corn is high
Most of the planted corn in Minnesota has been planted in fields with soil conditions that were suitable for preplant tillage and planting. However, cool and wet weather since the middle of last week is creating less than ideal conditions for germination and emergence. Seed quality in most planted fields should be fine, but it is a good idea to scout planted fields for seed quality once it dries out. This is especially true for low-lying poorly drained portions of fields that have received considerable rainfall since planting. Seed quality can be checked by digging up several planted seeds from different areas in a field and checking for seed firmness and discoloration. Seeds that are soft or discolored may have problems with emergence.
Goehring recognizes progress
in dealing with rail delays
BISMARCK– Agriculture Commissioner Doug Goehring applauds Burlington Northern Santa Fe (BNSF) for their largest investment ever in North Dakota’s infrastructure to aid in alleviating shipping backlogs.
“This announcement will certainly help, but we need to remain focused on helping farmers get their product to market in a reasonable time frame,” Goehring said. “BNSF is the largest transporter of grain in the U.S. and this will make a significant impact.”
The company reports that more than $160 million is budgeted to install a double track line from Minot to Glasgow, Montana. The double rail line will serve to expand capacity and ease flow of rail traffic headed to the Pacific Northwest and beyond to international destinations.
Goehring said this is an important step forward, but there is more to be done to deal with the problems that the agriculture industry is experiencing with extreme delays.
Farm Rescue Receives Challenge
Grant from The Leona M. & Harry B.
Helmsley Charitable Trust to Build Capacity
Funds represent Helmsley Charitable Trust’s strong support for sustainable Farm Rescue program
JAMESTOWN, ND, May 6, 2014– Farm Rescue, a nonprofit organization that provides planting, harvesting and haying assistance free of charge to farm families who have experienced a major illness, injury or natural disaster, has been awarded a grant for $445,564 from The Leona M. and Harry B. Helmsley Charitable Trust. The grant funding will be used to build capacity and develop long-term sustainability for the one-of-a-kind Farm Rescue program.
The grant from the Helmsley Charitable Trust is the largest multi-year funding Farm Rescue has received since its inception. The grant provides funding for increased capacity at Farm Rescue to better serve farm families in need through strategic and development planning, and the creation of a development officer position. The Trust has pledged $190,000 over the next three years in
the form of a two-to-one matching grant as a challenge for Farm Rescue to broaden its base of support.
Farm Rescue is requesting all individuals, businesses and foundations that have considered supporting Farm Rescue to donate at this opportune time. New donations will be matched two-for-one, and as a registered 501(c)3 nonprofit organization, donations to Farm Rescue are tax-deductible to the maximum extent allowed by law.
“We are very thankful for the generosity and foresight of the Helmsley Charitable Trust in helping us build organizational capacity and long-term sustainability,” Bill Gross, founder and president of Farm Rescue stated. “The two-for-one matching component is a strong incentive for individuals and businesses to see their donations maximized.”
“Farm Rescue has continued to grow and serve more farm families in need,” said Walter Panzirer, trustee. “We want to ensure Farm Rescue has the tools they need to seek partnerships which will allow them to better serve farm families in the upper Midwest.”
USDA’s May 9, 2014, World
Agricultural Supply and Demand
Estimates Report to Incorporate One Change
WASHINGTON, May 1, 2014– The next World Agricultural Supply and Demand Estimates (WASDE) report, which will be released at 12 noon ET on May 9, will present USDA’s initial assessment of U.S. and world crop supply and demand prospects and U.S. prices for the 2014/15 marketing year. It will also present the first calendar-year 2015 projections of U.S. livestock, poultry, and dairy products.
The 2014 Farm Bill eliminated the Dairy Product Price Support Program and the Dairy Export Incentive Program and created a Dairy Product Donation Program requiring USDA to purchase dairy products for donation to food banks and other feeding programs during periods of low operating margins for dairy producers.