Articles Tagged with ''potassium deficiency''

Identifying Nutrient Deficiency Symptoms in Soybeans

July 5, 2022 | Posted in Nutrient Management

Source: Kansas State University

This time of year, soybeans may begin showing signs of chlorosis or other leaf discoloration in all or parts of the field. There may be many causes of discoloration. Nutrient deficiencies are one possibility.

Mixing Science & Instinct Builds Bankable Strip-Till Results

By Steve Tesarik and Sierra Wolff posted on February 16, 2019 | Posted in Seeding & Planting, Precision Agriculture

With my wife, Carrie, and son, Alex, we’re fifth and sixth generation farmers. When we got into strip-till and no-till, it was shortly after we ran into Ray Rawson at the National Farm Machinery Show in Louisville.

Watch for Potassium Deficiencies

June 18, 2017 | Posted in Nutrient Management

Source: Penn State Extension

As the crops are finally getting going, potassium (K) deficiency is showing up in some fields, says Penn State Extension.

Potassium: The Overlooked Nutrient in Crop Production

March 20, 2017 | Posted in Nutrient Management

Source: Michigan State University Extension

Understanding potassium’s role as an essential plant nutrient is critical to alleviating some emerging crop production issues.

Drought-Induced Corn Potassium Deficiency

July 8, 2016 | Posted in Nutrient Management

Source: South Dakota State University Extension

During extreme soil drying, shrinking clay layers trap soil cations such as potassium, which become unavailable for the plant roots to take up.

Possible Causes for Yellowed Soybeans

June 23, 2016 | Posted in Crop Protection, Nutrient Management

Source: Kansas State University

When soybeans turn yellow at an early stage of growth, there are several possible explanations, says Kansas State University Extension.

Ensure Optimum Potassium Fertilization

September 29, 2015 | Posted in Nutrient Management

Source: Penn State Extension

Penn State Extension explains why soil potassium levels are critical to plant health, how to test for it and properly correct any deficiencies.

Yellow Tops In Soybeans

August 22, 2014 | Posted in Crop Protection, Nutrient Management

Source: University of Tennesse Extension

There are a good number of soybean plants with classic potassium (K) deficiency symptoms showing in the upper leaves.

Potassium Deficiency Symptoms In Corn, Soybeans

June 14, 2012 | Posted in Crop Protection

Source: By Antonio P. Mallarino, Department of Agronomy, Iowa State University

Some corn and soybean fields, mainly in eastern and southern Iowa, are showing potassium deficiency symptoms, even when growth stages range from V3 to V8.

Soil Tests, Not Yields, Tell Fertility Needs

November 5, 2009

Crop producers may have shied away from making phosphorus or potassium applications last year due to high fertilizer prices, but don’t let bumper corn and soybean yields fool one into thinking an application this fall may not be needed.

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