Proceedings :: North Central Soil Fertility Conference

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Malzer, G.L

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Authors

Schmitt, M.A

Randall, G.W

Malzer, G.L

Rehm, G.W

Lamb, J.A

Malzer, G.L

Davis, J.G

Topics

Type

Oral

Year

1989

1994

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Filter results2 paper(s) found.
1. Nitrogen Test Development Soil N Levels in 1989 The developnent of a N test that can be used for fertilizer recamrendations of corn in the eastern areas of Minnesota is needed for environmental and econcmic reasons. A multi-site project was initiated in 1989 to extensively examine soil sampling time and depth as well as N forms in the soil. This will then enable statistical models to be develaped using one or mre of the variables. A subset of the entire project is reported--concentrating on the sites allowing the calibration of the soil N tests... Download paper
2. Spacial Variability of Soil Test Phosphorus in a Northern Corn Belt Field For some time, an increasing number of fertilizer dealers, crop consultants, and farmers have reported substantial year-to- year variability in soil test values for phosphorus (P) and potassium (K). Frequently, this variation could be explained by such factors as extremes in soil moisture content at the time of sample collection. In many situations, however, this variation was due to the fact that soil samples were not collected from the same location in the field in two consecutive years. The introduction... Download paper

Filter results2 paper(s) found.

1. Nitrogen Test Development Soil N Levels in 1989

The developnent of a N test that can be used for fertilizer recamrendations of corn in the eastern areas of Minnesota is needed for environmental and econcmic reasons. A multi-site project was initiated in 1989 to extensively examine soil sampling time and depth as well as N forms in the soil. This will then enable statistical models to be develaped using one or mre of the variables. A subset of the entire project is reported--concentrating on the sites allowing the calibration of the soil N tests...

Download paper

2. Spacial Variability of Soil Test Phosphorus in a Northern Corn Belt Field

For some time, an increasing number of fertilizer dealers, crop consultants, and farmers have reported substantial year-to- year variability in soil test values for phosphorus (P) and potassium (K). Frequently, this variation could be explained by such factors as extremes in soil moisture content at the time of sample collection. In many situations, however, this variation was due to the fact that soil samples were not collected from the same location in the field in two consecutive years. The introduction...

Download paper