Javed Iqbal - Extension Nutrient Management and Water Quality Specialist

Javed Iqbal

faculty
Work Keim Hall (KEIM) 312
Lincoln NE 68583-0915
US
Work 402-472-1432 On campus, dial 2-1432

Faculty Bio
Introduction in CropWatch

Manure application setbacks chart
This chart demonstrates the setbacks for applying manure in Nebraska. Producers applying manure during the winter should target level ground, well away from ditches or water bodies. (UNL Water image)

Tips for Winter Manure Application

December 15, 2023
Manure application during winter can be a difficult management decision. Consider these points while planning where, when and how to apply manure.

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Nathan Mueller speaking in corn field
Nathan Mueller, Nebraska Extension water and integrated cropping systems educator, speaks to participants during the 2023 4Rs Nutrient Stewardship Field Day.

Nebraska 4Rs Nutrient Stewardship Field Day Featured Crop Nutrient Management Research

September 13, 2023
Throughout the field day, educators shared insights and conducted live demos on optimizing management of nitrogen, phosphorus and potassium, including via sensor-based fertigation.

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Burnt radicle

Fertilizer-nitrogen Injury to Corn

May 17, 2023
Nebraska Extension recommendations on minimizing crop injury from anhydrous ammonia applications.

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4Rs Field Day tent
Nitrogen management with sensor-based fertigation is one of many topics that will be discussed by experts from the University of Nebraska-Lincoln and Iowa State University during the 2023 4Rs Nutrient Stewardship Field Day.

Nebraska 4Rs Nutrient Stewardship Field Day Set for July 6

April 27, 2023
This year’s 4Rs Field Day will focus on up-to-date research information and demonstrations on all three major crop nutrients: nitrogen, phosphorus and potassium.

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Alfalfa and corn fields
As it aggressively scavenges nitrogen in the soil, alfalfa can greatly reduce nitrate contamination of groundwater with no negative implications for future crops if planted in rotations.

Alfalfa in Rotation with Annual Crops Reduces Nitrate Leaching Potential and Increases Soil Organic Carbon Sequestration

March 30, 2023
This UNL research study provides insights on the rotation of annual crops with alfalfa as a highly effective means of reducing nitrate-nitrogen contamination in groundwater.

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Tractor spraying soil
For producers planting corn-on-corn this growing season, Nebraska Extension encourages taking soil samples to determine accurate nitrate levels and adjusting N application rates accordingly, as there may be considerable amounts of residual nitrogen left from the previous corn crop.

Understanding Soil Residual Nitrogen and its Dollar Value for Next Crop

March 14, 2023
For producers planning corn-on-corn this growing season, there may be a substantial opportunity to reduce nitrogen fertilizer applications, as drought and reduced yields likely left higher-than-normal residual N in many fields.

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Cornstalk sample cutting

Using a Cornstalk Nitrate Test to Evaluate Nitrogen Management Decisions

September 29, 2022
At the end of the season, a nitrate test can help determine whether the crop was under-, adequately or over-fertilized with nitrogen, resulting in the potential to significantly reduce input costs.

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Departure from normal precip 2022
Figure 1. Departure from normal precipitation during 2022 growing season in Nebraska.

Another Dry Year: What to Know About Leftover Nitrogen in Soil Following Dry Conditions

September 28, 2022
In irrigated or dryland areas with normal production, management practices may continue as normal, but for dryland areas with drastic yield reductions, there is potential for nitrogen fertilizer adjustment for the 2023 crop.

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