Proceedings :: North Central Soil Fertility Conference

Proceedings

Find matching any: Reset

Varvel, G.E

» Add more authors

Add filter to result:

Authors

Schepers, J.S

Varvel, G.E

Power, J.F

Watts, D.G

Blackmer, T.M

Schepers, J.S

Varvel, G.E

Schepers, J.S

Varvel, G.E

F rancis, D.D

Varvel, G.E

Schepers, J.S

Wilhelm, W.W

Shanahan, J.F

Francis, D.D

Topics

Type

Oral

Year

1993

1994

1997

2006

Home » Authors » Results

Authors

Filter results4 paper(s) found.
1. Nitrogen and Water Management It is difficult to separate N and water management when developing improved management systems for irrigated corn production. This is because adequate supplies of both N and water are critical for crop growth, but excesses of either or both can threaten ground water quality. Several N and water management systems were established at the Nebraska Management Systems Evaluation Area (MSEA) project to evaluate the impact of improved irrigation and N fertilizer management practices on production and/or... Download paper
2. Remote Sensing Techniques to Identify N Deficiency in Corn Nitrogen management remains a primary concern for corn production. Environmental consciousness has increased the need for diagnostic techniques to identify N deficiencies to guide corrective measures or to provide feedback on management practices. This study was designed to evaluate several techniques that measure reflectance from corn plants to detect N stress. The experiment was located in Central Nebraska and involved four hybrids and five N rates. Leaf reflectance, canopy reflectance, and aerial... Download paper
3. In-Season Nitrogen Recommendations for Corn Making fertilizer N recommendations involves a great deal of guess work and uncertainty because much, essentially all, of the fertilizer N is applied before the crop is planted and the amount is based on estimated crop use from historical data. In addition, producers, consultants, and fertilizer dealers try to anticipate how much N might be lost because of untimely or excess precipitation or how much additional N might be required if the weather conditions are favorable. Sidedress and in-season... Download paper
4. Remote Sensing as a Tool for Agriculture The tendency for nearlv everything in our society to be bigger, better, faster, easier, cheaper, and safer than in the past has resulted in many challenges. Agriculture is not immune from these trends, and in some cases agriculture even leads the way. Incorporation of remote sensing into site- specific management activities is one area where technologies are being merged to develop a new array of products that are intended to help producers and consultants make better and more timely management decisions.... Download paper

Filter results4 paper(s) found.

1. Nitrogen and Water Management

It is difficult to separate N and water management when developing improved management systems for irrigated corn production. This is because adequate supplies of both N and water are critical for crop growth, but excesses of either or both can threaten ground water quality. Several N and water management systems were established at the Nebraska Management Systems Evaluation Area (MSEA) project to evaluate the impact of improved irrigation and N fertilizer management practices on production and/or...

Download paper

2. Remote Sensing Techniques to Identify N Deficiency in Corn

Nitrogen management remains a primary concern for corn production. Environmental consciousness has increased the need for diagnostic techniques to identify N deficiencies to guide corrective measures or to provide feedback on management practices. This study was designed to evaluate several techniques that measure reflectance from corn plants to detect N stress. The experiment was located in Central Nebraska and involved four hybrids and five N rates. Leaf reflectance, canopy reflectance, and aerial...

Download paper

3. In-Season Nitrogen Recommendations for Corn

Making fertilizer N recommendations involves a great deal of guess work and uncertainty because much, essentially all, of the fertilizer N is applied before the crop is planted and the amount is based on estimated crop use from historical data. In addition, producers, consultants, and fertilizer dealers try to anticipate how much N might be lost because of untimely or excess precipitation or how much additional N might be required if the weather conditions are favorable. Sidedress and in-season...

Download paper

4. Remote Sensing as a Tool for Agriculture

The tendency for nearlv everything in our society to be bigger, better, faster, easier, cheaper, and safer than in the past has resulted in many challenges. Agriculture is not immune from these trends, and in some cases agriculture even leads the way. Incorporation of remote sensing into site- specific management activities is one area where technologies are being merged to develop a new array of products that are intended to help producers and consultants make better and more timely management decisions....

Download paper