Bijesh Maharjan - Extension Soil and Nutrient Management Specialist

Bijesh Maharjan

faculty

Assoc Professor Agronomy & Horticulture University of Nebraska–Lincoln
Courtesy Assoc Professor Panhandle Research & Extension Center University of Nebraska–Lincoln

Work

4502 Ave I Scottsbluff NE 69361-4939

Work 308-632-1372

bmaharjan@unl.edu

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Faculty Bio

Fertilizer Recommendations for Soybean Updated

January 10, 2019

The most substantial revisions to NebGuide 859 are in the sections addressing fertilizer nitrogen and iron.

Spring N application in the field — Growers planning for their 2019 N management in corn might consider the potential for increased N efficiency and reduced loss from split applications at planting and up to R3 growth stage rather than a fall application.

Consequences of Fall-Applied N

November 9, 2018

A fall nitrogen application has a relatively high loss potential and is considered the riskiest N management practice. Consider breaking tradition and splitting your N applications next year to coincide with when your corn most needs more N.

Improved Use Efficiency of Applied Organic Nitrogen

January 8, 2018

An article from the Proceedings of the 2018 Nebraska Extension Crop Production Clinics about recent research to validate or adapt canopy sensor-guided in-season N application practices for fields with manure or other organic material applied and to improve the predictionof fertilizer N substitution for organic materials.

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

January 8, 2018

An article from the Proceedings of the 2018 Nebraska Extension Crop Production Clinics on research on land application of manure to enhance soil nutrients for crop production.

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.

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

January 8, 2018

An article from the Proceedings of the 2018 Nebraska Extension Crop Production Clinics on accounting for nitrogen from land-applied manure when determining soil nutrient needs for crop production.

Corn leaves showing signs of nitrogen deficiency — Figure 1. Corn at V10 growth stage displaying symptoms of N deficiency (inverted V-shaped yellowing starting at the tip of lower leaves). Corn can display these symptoms when N supply is insufficient, possibly due to multiple reasons, including losses.

Nitrogen Fertilizer Stabilizers in Corn

April 19, 2018

Understanding how the three types of nitrogen stabilizers work can be helpful in deciding whether to add one to your spring application. Short- and long-term studies in Nebraska offer insight into how they performed across multiple years. Now, if you only knew how many inches of rain you'd get the first six weeks after application.

Figure 1. Coal combustion residue is being mixed into manure for land application. Studies at the University of Nebraska-Lincoln are addressing organic N and opportunities for improving N efficiency in the soil. (Photo by Bijesh Maharjan)

Improving the Efficiency of Applied Organic N

April 11, 2018

University of Nebraska research is offering new insights into plant use efficiency of organic N resources such as livestock manure, municipal bio-solids, and others. The studies continue through 2018 and are expected to influence changes in university recommendations.