Brian Krienke - Soils Extension Educator

Brian Krienke

(faculty)
Work Plant Sciences Hall (PLSH) 362E
Lincoln NE 68583-0915
US
Work 402-472-5147 On-campus 2-5147

@krienke_unlsoil

Chart of residue required for different slopes

Crop Residue and High-Carbon Char: Potential Soil Conservation Tools May 8, 2018

Soil is the single most important resource on which our agriculture depends. Proper soil management is necessary to sustain long-term agricultural productivity. Soil loss through erosion or run-off hurts agricultural production with depletion of organic matter and fertility. It also has environmental implications.

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Land-applied manure
Research to validate or adapt canopy sensor-guided in-season N application practices for manured fields was evaluated in two trials.

Adaptation of Canopy Sensor-Guided In-Season Nitrogen Application for Manured Fields May 8, 2018

Land application of organic materials for soil management in Nebraska is important.

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Chart

Improved Use Efficiency of Applied Organic Nitrogen May 8, 2018

Land application of organic materials for soil management in Nebraska is important.

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Figure 1. Land-applied manure from finishing 5 million beef cattle per year in Nebraska contains the equivalent of 150 lb/ac/yr N applied to 1.2 million acres.
Figure 1. Land-applied manure from finishing 5 million beef cattle per year in Nebraska contains the equivalent of 150 lb/ac/yr N applied to 1.2 million acres.

Fertilizer N Substitution Values of Land-Applied Organic Materials May 7, 2018

Land application of organic materials for soil management in Nebraska is important for several reasons:

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Chart of N research treatments

Feasibility of Sensor-Based Nitrogen Fertigation Management in Corn May 7, 2018

Averaged across two years, the sensor-based N fertigation treatment consistently resulted in higher profit and nitrogen use efficiency. The use of fertigation offers the unique capability to minimize N losses by reacting to slight N deficiencies in corn by applying N multiple times throughout the season with lower application rates.

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Cereal rye cover crop

Q&A on Grazing Cereal Rye after an Anhydrous Application April 19, 2018

This week a CropWatch reader asked: Can you safely graze cover crop rye this spring after anhydrous has been applied? That depends on several factors, write three extension specialists in agronomy and beef production.

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Fertilizer Management for Winter Wheat August 29, 2017

With winter wheat planting drawing near, it's time to collect soil samples and determine fertilizer needs. Use the nitrogen and phosphorus information to guide your strategy.

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Cover of the new ISU Publication,

Iowa Releases New Publication on Use of the Late Spring Soil Nitrate Test June 8, 2017

Following heavy spring rains, farmers may be interested in testing for soil nitrogen availability. This article notes a new publication from Iowa State University on using the Late Spring Soil Nitrate Test (LSNT) as well as other options for assessing soil nitrate.

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