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Identifying Nutrient Deficiencies in Soybeans

By Dorivar Ruiz Diaz posted on July 5, 2025 | Posted in Crop Protection, Nutrient Management

Source: Kansas State Extension

As the growing season for soybeans progresses, the plants may begin showing signs of chlorosis or other leaf discoloration in all or parts of the field. There may be many causes of this discoloration. Nutrient deficiencies are one possibility.

Micronutrients, Part 4

Take a 4R Approach to Iron Availability & Management

Most soil-borne iron cannot be taken up for thriving plant health

By Dan Crummett posted on July 18, 2024 | Posted in Nutrient Management

While iron is the fourth most common element in the Earth’s crust and most soils contain abundant levels of it, many times naturally occurring iron is not found in the forms most readily available for plant uptake.

Micro, Secondary Macro Rates Up in Latest NTF Benchmark

By Frank Lessiter posted on March 3, 2022 | Posted in Nutrient Management

With higher fertilizer prices, it appears that many no-tillers are taking a closer look at how nutrients other than nitrogen, phosphorus and potassium can help keep no-till soybean yields at a high level.

Scientists: Glyphosate Contributes to Phosphorus Runoff in Lake Erie

Low soil pH and certain metals are causing glyphosate to release phosphorus from the soil, which is responsible for about 25% of dissolved reactive phosphorus runoff in the Maumee watershed.

By Laura Barrera posted on June 11, 2016 | Posted in Crop Protection, Nutrient Management

Scientists now know that the increase in dissolved reactive phosphorus (DRP) runoff that’s been plaguing the western Lake Erie basin is mostly coming from farms located in the Maumee watershed.

No-Tillers Ready to Make Slight Cuts with Fertilizer

After increasing per-acre spends on fertilizer in 2014, no-tillers will try to trim expenditures mostly through cuts to soybean applications.

By Darrell Bruggink posted on April 17, 2015 | Posted in Crop Protection, Nutrient Management, Soil Health

Year after year, fertilizer is the big gorilla in the room when it comes to farm expenditures. In 2014, the readers of No-Till Farmer spent an average of $85,513 per farm to feed their crops — far outpacing the average of $69,732 spent on average, per farm, for land rent.

7th Annual Benchmark Study

High Yields Help No-Tillers Stay in the Black

Even as grain prices continued their slide, 8 in 10 no-tillers had a profitable 2014, and most plan to keep investing.

By John Dobberstein posted on April 17, 2015 | Posted in Seeding & Planting, Soil Health

Even though commodity prices have fallen from historic highs, it hasn’t stopped U.S. no-tillers from innovating and staying profitable.

Succeeding at No-Till Without ‘Chasing Acres’

After nearly quitting on agriculture, Jonathan Cobb is rebuilding his family’s central Texas farm through no-till practices, intense cover-crop mixes and rotational grazing to amass ‘soil wealth.’

By Jim Steiert posted on January 9, 2015 | Posted in Seeding & Planting

Less is proving more for Jonathan Cobb — fewer acres, lower expenses for equipment, fertilizers and herbicides and more hope about his future in farming.

Less Iron, More Cover Tames Tough Plains Soils

Brian and Alan Johnson turned to no-till, cover-crop cocktails and CRP to reclaim saline seeps and improve productivity in tough growing conditions.

By Loretta Sorensen posted on December 8, 2014 | Posted in Cover Crops, Nutrient Management

Making no-till practices work on the Johnson farm near Frankfort, S.D., has been a study in contrasts.

Proper Soil pH is Key to Molybdenum Availability

Most problematic for legumes, molybdenum deficiencies are sometimes misdiagnosed as nitrogen deficiencies, but with a soil pH greater than 6.0, a response to applications is unlikely.

By Claire Keyes posted on December 7, 2014 | Posted in Nutrient Management

Editor’s note: This is the seventh of seven articles to be published in the No-Till Farmer newsletter on micronutrients essential to plant health.

Iron Availability Matters, But Plant Intake Varies

Obtaining iron-chlorosis crop ratings prior to planting, and choosing varieties and hybrids wisely, can help no-tillers avoid iron deficiency problems

By Claire Keyes posted on September 1, 2014 | Posted in Nutrient Management

When it comes to plant requirements, iron is needed in small amounts to facilitate proper plant growth and production.

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