Proceedings :: North Central Soil Fertility Conference

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Fehrenbacher, T.A

Doerge, T.A

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Authors

Doerge, T.A

Varsa, E.C

Fehrenbacher, T.A

Ebelhar, S.A

Wyciskalla, T.D

Hart, C.D

Robertson, G.K

Topics

Type

Oral

Year

1998

2002

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Filter results2 paper(s) found.
1. Low-Phytate Corn- A Genetic Approach to Manure-P Management Managing nitrogen (N) and phosphorus (P) contained in manure produced by monogastric animals (primarily poultry and swine) is complicated because the N:P in corn grain is 6: 1 but only 3: 1 or less, in the manure. The P content in manure fiom monogastric animals becomes elevated because corn grain and many other feed sources contain most of their P as phytic acid (phytate) which is unavailable to these species because they lack the intestinal enzyme, phytase, needed to metabolize phytic acid-P. Repeated... Download paper
2. Varying Nitrogen and Seeding Rates of Corn Across Productivity Regions in Fields A field study was conducted fiom 1999 to 2001 to determine the effects of variable seeding rates and variable nitrogen rates on corn (Zeu muys L.) in southern Ihois. In whole field experiments, variable seeding rates ranging fiom 18,000 to 38,000 seeds ac-' in 4.000 seed increments were planted in randomized strips (in a randomized complete block design) across the field that had soils with varying productivity based upon historical yield maps. From the yield data it was determined that the optimum... Download paper

Filter results2 paper(s) found.

1. Low-Phytate Corn- A Genetic Approach to Manure-P Management

Managing nitrogen (N) and phosphorus (P) contained in manure produced by monogastric animals (primarily poultry and swine) is complicated because the N:P in corn grain is 6: 1 but only 3: 1 or less, in the manure. The P content in manure fiom monogastric animals becomes elevated because corn grain and many other feed sources contain most of their P as phytic acid (phytate) which is unavailable to these species because they lack the intestinal enzyme, phytase, needed to metabolize phytic acid-P. Repeated...

Download paper

2. Varying Nitrogen and Seeding Rates of Corn Across Productivity Regions in Fields

A field study was conducted fiom 1999 to 2001 to determine the effects of variable seeding rates and variable nitrogen rates on corn (Zeu muys L.) in southern Ihois. In whole field experiments, variable seeding rates ranging fiom 18,000 to 38,000 seeds ac-' in 4.000 seed increments were planted in randomized strips (in a randomized complete block design) across the field that had soils with varying productivity based upon historical yield maps. From the yield data it was determined that the optimum...

Download paper