Bijesh Maharjan - Extension Soil and Nutrient Management Specialist

Bijesh Maharjan

faculty
Work
4502 Ave I Scottsbluff NE 69361-4939
US

Faculty Bio

Plowing a field
Anticipated high residual soil nitrate-N levels in NE rainfed crops of dry 2020 can be credited to reduce N rates for 2021

Planning 2021 Fertilizer-N Application Following a Dry 2020

October 6, 2020
Fertilizer-N is a big investment for crop production in Nebraska and elsewhere. After harvest, growers tend to plan their fertilizer-N management for the next year’s crop. But the question is how much nitrogen can they apply to get the most profit from their fertilizer-N investment?

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chart showing results of wheat trials

Improving Nitrogen Management in Dryland Winter Wheat Production

September 3, 2020
Over the past two years of the study across multiple locations, we found that yield response to applied N rates was evident only in the wet year.

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aerial view of wheat trial field
Figure 1. 2020 Areal image of spring wheat demo plot at Henry J. Stumpf International Wheat Center near Grant, NE.

Spring Wheat Research in Western Nebraska

August 13, 2020
Many farmers view spring wheat as a rotational crop with a purpose to break the weed and pest cycles, build up the residue cover and increase yield of corn the following years.

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New NebGuide: Soil Microbiology in Nebraska

July 15, 2020
Soil microbiology is a universal and essential component of agricultural soils. This NebGuide provides basic information of soil microbiology, microbial functions, microbial enhancement, and microbial assessment.

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corn seedling with damage

Fertilizer-nitrogen Injury

May 22, 2020
Nitrogen (N) is the most limiting nutrient in corn. However, there is risk of crop injury with band application of fertilizer-N.

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nitrogen fertilizer being applied to corn
Photo by Richard Ferguson

Tips for In-season Nitrogen Management in Corn

April 29, 2020
This spring conditions are good for pre-plant fertilizer, but there are still considerations that justify shifting more nitrogen application to in-season versus pre-plant.

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Figure 3

Agronomic Management for Reduced Nitrate Leaching

January 7, 2020
The leaching of nitrate to groundwater and the increasing occurrence of groundwater with excessive nitrate levels for human consumption is a major concern in Nebraska. The amount of leached NO3- depends on soil NO3- concentration at different soil depth layers and the quantity of water movement downward through these soil layers to beyond the root zone.

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Soil Amendments

December 9, 2019
Soil amendments are any materials that when added to soil will improve its properties and processes. Amendments such as lime, gypsum, manure, or biochar can provide many benefits to production systems by improving soil chemical, physical, and biological properties. Some examples of production benefits from amendments include raising pH, adding nutrients, increasing soil organic matter, mitigating salt-affected soils, and improving soil water storage.

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