Humberto Blanco - Associate Professor of Soil Science

Humberto Blanco

faculty
Work Keim Hall (KEIM) 367
Lincoln NE 68583-0915
US
Work 402-472-1510 On campus, dial 2-1510

Faculty Bio

Cover crop field trial

Cover Crops and Carbon Sequestration: Benefits to the Producer and the Planet March 11, 2019

This student study of a four-year research project found cover crops may significantly improve soil aggregation and particulate organic matter concentration in the short-term, which suggests the potential for cover crops storing soil carbon in the long term.

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Rye in continuous corn April 19, 2018 at the Eastern Nebraska Research and Education Center near Mead
Rye in continuous corn April 19, 2018 at the Eastern Nebraska Research and Education Center near Mead

How Does Cover Crop Planting Date Affect Soil’s Susceptibility to Water Erosion? March 11, 2019

This Nebraska student study of how cover crops planted pre- and post-harvest affected soil erodibility found that the amount of water-stable aggregates and biomass production increased with pre-harvest planting.

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Cattle grazing cover crops

Cover Crop Grazing: Impacts on Soils and Crop Yields January 22, 2019

Results from a three-year study in rainfed and irrigated no-till cropping systems in Nebraska suggest that moderate cattle grazing of cover crops may not negatively impact soil properties and crop production.

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Comparison of aboveground biomass amounts and total N when using hairy vetch or cereal rye as cover crops.

Cover Crops Benefit Nebraska Agroecosystems In Many Ways January 9, 2019

Across Nebraska, the use of cover crops is increasing. Most commonly, winter cover crops are planted during the fallow period between corn or soybean harvest and the next crop. However, other windows for cover cropping exist in Nebraska.

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Figure 1. A view of all four treatments of a corn residue and cover crop experiment at the South Central Agricultural Laboratory near Clay Center. Top left is cereal rye with 60% corn residue removal; top right is cereal with corn residue. Bottom left is no cereal rye with 60% corn residue removal; bottom right is corn residue and no cover crop (control).
Figure 1. A view of all four treatments from a corn residue and cover crop experiment at the South Central Agricultural Laboratory near Clay Center. Top left is cereal rye with 60% corn residue removal; top right is cereal with corn residue. Bottom left is no cereal rye with 60% corn residue removal; bottom right is corn residue and no cover crop (control).

Cover Crop and Crop Residue Management: How Does it Affect Soil Water in the Short and Long Term? August 13, 2018

How you manage your soil today impacts its productivity tomorrow. This article focuses on how plant residue management and cover crop use affect water infiltration and plant available water.

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CO2 sensor in rye cover crop

Cover Crop and CO2 Emissions February 26, 2018

Do cover crops affect CO2 emissions from the soil and if so, under what conditions? These were among the questions addressed by university researchers monitoring CO2 emissions from cereal rye cover crops in irrigated and dryland no-till continuous corn treatments.

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Taking CO2 measurements in plots where residue has been baled
Taking CO2 measurements in plots where residue has been baled

Corn Residue Removal and CO2 Emissions February 26, 2018

University research looking at CO2 emissions from two types of residue removal (baling and grazing) compared with a control treatment found little day-to-day impact; however, when looking at cumulative data for the whole year, grazing did appear to affect cumulative CO2 emissions in irrigated crop-livestock systems. This data represents the first year of this study.

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Figure 1. Aerial imagery was collected at bean emergence using a drone. All dark green rows correspond to plots with different rates of char (10, 20, 30, 40, and 60 tons/acre).
Figure 1. Aerial imagery was collected at bean emergence using a drone. All dark green rows correspond to plots with different rates of char (10, 20, 30, 40, and 60 tons/acre).

Coal Combustion Residue: A Potential Soil Amendment February 22, 2018

University of Nebraska researchers applied char, a by-product of sugar beet processing, at three sites to study its effect on soil properties.

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