Proceedings :: North Central Soil Fertility Conference

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Howe, P.L

Hapka, A.J

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Authors

Franzen, D.W

Giles, J.F

Hapka, A.J

Reitmeier, R.J

Cattanach, N.C

Cattanach, A.C

Murdock, L.W

Howe, P.L

Schwab, G.J

Topics

Type

Oral

Year

2001

2002

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Filter results2 paper(s) found.
1. Adjusting N Recommendations Based on a Previously Grown Crop Nitrogen recommendations in North Dakota are based on a yield goal multiplied from some empirically derived factor in a linear formula. There are a three adjustments to the N recommendations that result form these formulas (Franzen and Cihacek, 1996). They are the soil test nitrate-N to some depth, a sampling date adjustment ifthe sampling was conducted in the fall prior to September 15, and a previous crop credit. Two of these three adjustments are based on some knowledge regarding mineralization... Download paper
2. Variable Rate Nitrogen Fertilizer for Corn Grown in Kentucky In Kentucky, nitrogen recommendations for corn have historically been based on soil type. soil drainage class, and previous crop rather than on an anticipated yield or yield potential. Because of the growing popularity of yield monitors and GPS technology, corn producers are now accurately mapping yield variations within fields. A three year study was conducted in the karst region of western Kentucky to determine if past yield history (collected with a yield monitor using GPS) could be used as a... Download paper

Filter results2 paper(s) found.

1. Adjusting N Recommendations Based on a Previously Grown Crop

Nitrogen recommendations in North Dakota are based on a yield goal multiplied from some empirically derived factor in a linear formula. There are a three adjustments to the N recommendations that result form these formulas (Franzen and Cihacek, 1996). They are the soil test nitrate-N to some depth, a sampling date adjustment ifthe sampling was conducted in the fall prior to September 15, and a previous crop credit. Two of these three adjustments are based on some knowledge regarding mineralization...

Download paper

2. Variable Rate Nitrogen Fertilizer for Corn Grown in Kentucky

In Kentucky, nitrogen recommendations for corn have historically been based on soil type. soil drainage class, and previous crop rather than on an anticipated yield or yield potential. Because of the growing popularity of yield monitors and GPS technology, corn producers are now accurately mapping yield variations within fields. A three year study was conducted in the karst region of western Kentucky to determine if past yield history (collected with a yield monitor using GPS) could be used as a...

Download paper