Proceedings :: North Central Soil Fertility Conference

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Dietzel, R

Shanahan, J.F

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Shanahan, J.F

Holland, K

Schepers, J.S

Caldwell, R

Cordova, S

Dietzel, R

Licht, M

Archontoulis, S

Castellano, M

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Oral

Poster

Year

2002

2017

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Filter results2 paper(s) found.
1. A Crop-Based Approach for In-Season N Management of Corn Over-application of nitrogen (N) fertilizer on corn has resulted in elevated levels of N in ground and surface waters. A major factor contributing to decreased N use efficiency and environmental contamination for traditional corn N management schemes is routine pre-season application of large doses of N before the crop can effectively utilize this N. Our long-term research goal is to reduce these over-applications by using remote sensing to direct fertilizer only to areas needing N at times when... Download paper
2. Iowa Soybean Nitrogen Fixation Consider in Nitrogen Budgets Soybean (Glycine max) is one of the most important agricultural commodities grown in Midwestern states of the US and some other parts of the world. Like many other legumes, soybean can associate symbiotically with nitrogen (N) fixing bacteria, which can transform the N2 from the atmosphere into NH3 a more available N form, through a process known as biological N fixation (BNF). However, BNF is an energy expensive process for soybean that requires carbohydrates from... S. Cordova, R. Dietzel, M. Licht, S. Archontoulis, M. Castellano

Filter results2 paper(s) found.

1. A Crop-Based Approach for In-Season N Management of Corn

Over-application of nitrogen (N) fertilizer on corn has resulted in elevated levels of N in ground and surface waters. A major factor contributing to decreased N use efficiency and environmental contamination for traditional corn N management schemes is routine pre-season application of large doses of N before the crop can effectively utilize this N. Our long-term research goal is to reduce these over-applications by using remote sensing to direct fertilizer only to areas needing N at times when...

Download paper

2. Iowa Soybean Nitrogen Fixation Consider in Nitrogen Budgets

Soybean (Glycine max) is one of the most important agricultural commodities grown in Midwestern states of the US and some other parts of the world. Like many other legumes, soybean can associate symbiotically with nitrogen (N) fixing bacteria, which can transform the N2 from the atmosphere into NH3 a more available N form, through a process known as biological N fixation (BNF). However, BNF is an energy expensive process for soybean that requires carbohydrates from... S. Cordova, R. Dietzel, M. Licht, S. Archontoulis, M. Castellano