How Critical Are Micronutrients For Crop Production?

Zinc deficiency in corn causes interveinal, light striping, or a whitish band beginning at the base of the leaf and extending toward the tip.
Zinc deficiency in corn causes interveinal, light striping, or a whitish band beginning at the base of the leaf and extending toward the tip.

 

Boron, zinc and copper are termed micronutrients because they represent a small portion of the plant by weight. Boron is only about .006% of a plant’s makeup by weight. It plays a significant role in cell division, amino acid production, nodule formation and pollen grain viability.

Absorbed as boric acid or negatively charged borate ions, alfalfa is the only crop usually noted for boron deficiency in Illinois. Such alfalfa is usually stunted and yellowed on the upper leaves since the boron nutrient does not usually move from old to new tissue.

Zinc, absorbed as positively charged ions, makes up only about 0.02% of the plant by weight. Within the plant, the nutrient is used for plant enzyme activity and metabolism. Like boron, zinc is not very mobile and it will very rarely appear deficient on the lower parts of plants.

Finally, copper within the plant is only about .002% of its weight. It is used for enzyme activity, photosynthesis, and like zinc and boron, nodule formation in legumous plants.

So what is the answer? Is it necessary to apply these materials or do they exist at adequate levels within the soil already? Copper deficiencies are usually rare to non-existent within the state. Zinc deficiencies are nearly non-existent with soybean production, and very, very rare in corn production. Boron had better be used carefully if used at all (except in previously-noted cases of boron deficiencies in alfalfa).

Unfortunately, boron has the nasty habit of causing toxicity, yellowing or browning of the leaf margins, and crinkled leaf edges, if it is not evenly applied and if dry conditions prevail.

Leave a Reply

One comment on “How Critical Are Micronutrients For Crop Production?

Micronutrients Stories

Young Corn Closeup
MicronutrientsBiostimulants And Micronutrients: The Making Of A Market
September 7, 2016
The market for biostimulants and micronutrients continues to grow faster than many other areas of the crop protection market. While Read More
Aerial Photo of Advanced Micronutrient Products in Reese MI
MicronutrientsAdvanced Micronutrient Products Big On Custom Blends
September 7, 2016
John Bowen, whose father started Cameron Chemicals in 1986, has his own unique approach to today’s market. The company evolved Read More
corn
MicronutrientsMicronutrients 2016: Market Updates From Key Suppliers
September 7, 2016
This is the year that people should be going back to using micronutrients. After all, to open the door, you Read More
Aspire with Boron
Crop InputsStudy: Aspire with Boron Ups Alfalfa Yields
June 8, 2016
Alfalfa growers are successfully improving yields through the cutting season by applying an important micronutrient. In a recent study, The Read More
Trending Articles
Precision AgTrimble Debuts End-to-End FMIS Platform
November 28, 2016
October’s inaugural PrecisionAg Vision Conference left this author with many thoughts and things to ponder in the coming months. Probably Read More
CHS Primeland
CropLife 100The 2016 CropLife 100 Report: Reviewing The Many Bulls And Bears Impacting This Year’s Marketplace
November 28, 2016
For virtually all of 2016, the nation was wholly focused on the big Presidential election. Some folks aligned themselves with Read More
Monsanto sign
Crop InputsMissouri Governor Meets With Bayer CEO To Discuss Monsanto Merger
November 21, 2016
Missouri Gov. Jay Nixon visited Bayer AG global headquarters in Leverkusen, Germany, on November 18 to discuss the proposed Bayer-Monsanto Read More
STS16 2017
SprayersHagie Manufacturing Releases 2017 STS16 Sprayer To Market
November 16, 2016
Hagie Manufacturing LLC’s largest full season applicator is now available with enhancements for the 2017 model year. Hagie is officially Read More
Wilco
CropLife 100Valley Agronomics, Wilco-Winfield To Form New Agronomy Joint Venture
November 11, 2016
Valley Agronomics LLC, headquartered in Rupert, ID, is a joint venture between Valley Wide Cooperative and Winfield Solutions, LLC. Wilco-Winfield, Read More
FertilizerThe Fertilizer Institute Issues Statement On The U.S. Elections
November 10, 2016
The Fertilizer Institute (TFI) President Chris Jahn has issued the following statement on the results of the 2016 elections: “TFI Read More
Latest News
Tim McCardle, ARA Chairman
CropLife 100BRANDT COO Named ARA Chairman
December 5, 2016
BRANDT EVP and Chief Operating Officer Tim McArdle has been named chairman of the Agricultural Retailers Association (ARA) during a Read More
Crop InputsWilbur-Ellis Receives ResponsibleAg Certification At Mo…
December 5, 2016
Wilbur-Ellis Co., a recognized leader in precision agriculture technology and the distribution of crop protection products, announces the ResponsibleAg certification Read More
Young Corn Closeup
Eric SfiligojThe Read On 2017 For Agricultural Fortunes Is Anybody’s…
December 5, 2016
As I (and others) have written in recent months, the nation has just experienced one of the most offbeat election Read More
Acceleron B-300 seed coating
Crop InputsThe BioAg Alliance Launches New Yield-Boosting Microbia…
December 5, 2016
As part of their commitment to develop and commercialize innovative microbial solutions for farmers through The BioAg Alliance, Monsanto Co. Read More
ManagementCorn and soy planting update; Takeaways from Climate Co…
December 2, 2016
AgriBusiness Global Editor Dave Frabotta Joins Paul Schrimpf for a discussion of global corn and soybean planting trends, and a Read More
Radish cover crop taproot
Crop InputsSoil Health Institute, Datu Research Receive Grant To E…
December 1, 2016
The Soil Health Institute (SHI) and Datu Research have announced a $626,000 grant from the Walton Family Foundation to quantify the Read More
Mike Stern
Precision AgClimate Corp. CEO Talks Retailer Support For Digital Ag
December 1, 2016
CropLife Magazine’s sister publication, AgriBusiness Global, recently sat down with Mike Stern, CEO of The Climate Corp., following the Monsanto subsidiary’s Read More
ManagementAg Industry Comes Together To Address Climate Change
December 1, 2016
Addressing climate change — and more specifically, decreasing greenhouse gas emissions from agriculture — can only be achieved through collective Read More
Young soybean field
HerbicidesLiquid Formulation Valor EZ Herbicide Available For 201…
December 1, 2016
Valent U.S.A. Corp. has released Valor EZ; a liquid formulation of the company’s leading herbicide, Valor. Named Valor EZ Herbicide Read More
Key Cooperative Marcus Construction Steel Building
ManagementThe Value Of Cooperatives In Modern Agriculture
December 1, 2016
Editor’s Note: Jaxon Mullinnix of  Lone Tree, IA, was recently named the Iowa state winner of the 2017 GROWMARK essay Read More
AGCO Operator of the Year Tony Kornder
SprayersAGCO Names Tony Kornder Operator Of The Year
December 1, 2016
AGCO Corp. names Tony Kornder with Genesis Growing Solutions in Le Sueur, MN, the 11th annual Operator of the Year. Read More
Chris Henney OABA
ManagementOABA Industry Conference To Provide Outlook For Future …
November 29, 2016
The upcoming Ohio AgriBusiness Association Industry Conference is packed with widely-respected speakers and industry professionals, sharing their expertise on a Read More
Corn
InsecticidesMajor Review Finds Neonic Poses Low Risk To Aquatic Inv…
November 28, 2016
A major new ecotoxicological review and risk assessment has been published in the peer-reviewed literature and concluded that registered crop Read More
EquipmentGSI Details New Grain Drying Efficiency System for Coop…
November 28, 2016
Grain elevators and ag co-ops are always looking for ways to increase their energy efficiency to help improve profitability. For Read More
Precision AgTrimble Debuts End-to-End FMIS Platform
November 28, 2016
October’s inaugural PrecisionAg Vision Conference left this author with many thoughts and things to ponder in the coming months. Probably Read More
AGCO AgControl system
Precision AgPrecision Ag Technology: Rate Control For The Times
November 28, 2016
It’s not surprising that the need for more economical, effective application is driving the demand for the latest rate controllers Read More
ARA
Eric SfiligojTaking The Industry’s Pulse At ARA
November 28, 2016
When most of you read this particular column, many of the industry’s key folks will probably be spending at least Read More
CHS Primeland
CropLife 100The 2016 CropLife 100 Report: Reviewing The Many Bulls …
November 28, 2016
For virtually all of 2016, the nation was wholly focused on the big Presidential election. Some folks aligned themselves with Read More