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Document Type

Research

Keywords

Zea mays L., conservation tillage, planting dates

Abstract

Conservation tillage systems that leave greater crop residue on the soil surface to reduce wind and water erosion are becoming more popular with Iowa farmers. Conservation-tilled soils, however, tend to be wetter and cooler at planting time than conventional fall plowed soils. Our objective was to compare corn (Zea mays L.) hybrids classified as cold or not cold tolerant (based on laboratory germination tests) on soils that were either fall plowed (conventional tillage) or spring disked (conservation tillage). Our results did not show any clear advantage for using conventional instead of conservation tillage. Means for the hybrids classified as cold tolerant and not cold tolerant were similar for both tillage systems. No consistent differences in stand, yield, and grain moisture were found between the two tillage systems which suggested that comparable performance would be expected for the two methods of tillage.

Publication Date

March 1985

Journal Title

Proceedings of the Iowa Academy of Science

Volume

92

Issue

2

First Page

58

Last Page

62

Copyright

© Copyright 1985 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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