Soybean

Aerial image of field showing differences between 15-inch and 30-inch row spacings
Figure 1. TerrAvion aerial imagery taken on Aug 4, 2017 at Chase County site showing less vigor and higher thermal stress in 30-inch row soybeans than in 15-inch row soybeans.

How Row Spacng Affects Irrigated Soybean in Southwest Nebraska April 27, 2018

While continuous corn is the most common cropping sequence in southwest Nebraska, adding soybeans to a rotation could help break pest cycles. On-farm research comparing 15- and 30-inch soybean row spacing found increased yields of 4-12 bu/ac with an average 7 bu/ac increase with 15-inch rows.

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Broadleaf weeds

Q&A: Which Dicamba Product Should I Use to Kill Broadleaf Cover Crops or Burndown Weeds Before Xtend Soybean? April 27, 2018

With a delayed or compressed planting season, this week several growers asked whether they could immediately plant soybeans after a dicamba application. See how Extension Weed Scientist Amit Jhala replied.

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Cereal rye in corn stubble
Figure 1. Cereal rye planted as a cover crop in many fields is slow-growing this spring. Combining a cover crop termination and PRE application may be a valuable time-saver this year, if used correctly.

Q&A on Terminating Cereal Rye, Applying a PRE April 25, 2018

A grower asked: My cereal rye cover crop is only 3 to 5 inches tall going into planting season. Can I combine two field operations in one by applying glyphosate to terminate cereal rye and tank-mixing it with a residual herbicide for early season weed control?

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Nebraska Corn and Soybean Planting Gets Started April 24, 2018

For the week ending April 22, the USDA National Agricultural Statistics Service reported corn planting in Nebraska at 2%, behind last year's 15% and the five-year average of 9%.

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Soybean fields in planting date study at UNL's East Campus
Planting date studies conducted on UNL's East Campus showed yield decreases of 1/4 bu/ac (2003) and 5/8 bu/ac (2004) for each day after May 1 that soybean were planted.

Amplifying Positive Impacts of Early Soybean Planting April 19, 2018

The benefits of planting soybean near May 1 are well documented. Now, what are the next steps growers can take to further expand on these benefits? Are different maturity groups warranted? What groups are typically being used in irrigated and rainfed environments in Nebraska?

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Soil moisture sensor only partially installed due to dry ground

Determining Beginning Soil Moisture for Planning Decisions April 12, 2018

Soil moisture sensors installed now can provide valuable information for dryland producers who want to determine existing soil moisture level and adjust cropping or planting plans accordingly. The authors installed and will be monitoring soil moisture readings at six sites in south central Nebraska.

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Cold germination test of seed

Cold Germination Test for Corn and Soybeans April 10, 2018

A cold germination test is used to evaluate the emergence of a seed lot in cold wet soils. Developed to simulate adverse field conditions, it is the most widely used vigor test for corn and soybean.

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Graph of yields from soybean population study

What On-Farm Research has Taught Us about Soybean Seeding Rates April 6, 2018

More than a decade of on-farm research studies in Nebraska show how soybean seeding rates (and the related input costs) can be reduced without significantly affecting yield. See what growers learned and consider whether a change might benefit your bottom line.

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