Skip to main content Accessibility help
×
Home

Competitive Effects of Quackgrass upon Corn as Modified by Fertilization

  • J. D. Bandeen (a1) (a2) and K. P. Buchholtz (a1)

Abstract

A field study was made on the competitive effect of quackgrass (Agropyron repens (L.) Beauv.) on corn for the nutrients N, P, and K during 1962 and 1963. Quackgrass competition drastically reduced corn height and yield and delayed maturity. High levels of fertilization did not overcome the effects of quackgrass competition. The annual uptake by quackgrass during the growing seasons of 1962 and 1963 was 105, 15 and 60 lb/A of N, P, and K, respectively. Quackgrass shoots harvested at maturity in mid-July had taken up 55, 45, and 68% of the total N, P, and K, respectively, that was removed throughout the season by quackgrass shoots plus rhizomes. It appeared that the early season uptake of N and K by quackgrass may have contributed to, but was not solely responsible for, the reduction in corn height and yield and delayed maturity noted later in the season.

Copyright

References

Hide All
1. Grummer, G. 1961. The role of toxic substances in the interrelationships between higher plants. Symposia Soc. for Exptl. Biol. No. XV:219228.
2. Kommedahl, T., Kotheimer, J. B., and Bernardini, J. V. 1959. The effects of quackgrass on germination and seedling development of certain crop plants. Weeds 7:112.
3. LeFevre, C. W. and Clagett, C. O. 1960. Concentration of a growth inhibitor from Agropyron repens (quackgrass). Proc. NEWCC 14:353356.
4. Meyer, B. S. and Anderson, D. B. 1952. Plant Physiology, p. 691692. D. Van Nostrand Co. Inc., New York.
5. Murdock, John T. 1960. Response of corn to different levels and balance of fertility. Proc. Hybrid Corn Ind. Res. Conf. 15:9396.
6. Ohman, J. H. and Kommedahl, T. 1960. Relative toxicity of extracts from vegetative organs of quackgrass to alfalfa. Weeds 8:666670.
7. Ohman, J. H. and Kommedahl, T. 1964. Plant extracts, residues, and soil minerals in relation to competition of quackgrass with oats and alfalfa. Weeds 12:222231.
8. Palmiter, D. H. 1959. Evidence of quackgrass toxicity to apple seedlings. Phytopathology 49:228229. (Abstr.)
9. Welbank, P. J. 1960. Toxin production from Agropyron repens , p. 158164. In Harper, J. L. (ed.), The Biology of Weeds. Blackwell Scientific Publications, Oxford.
10. Welbank, P. J. 1961. A study of the nitrogen and water factors in competition with Agropyron repens (L.) Beauv. Ann. of Botan. N. S. 25:116137.
11. Welbank, P. J. 1962. The effects of competition with Agropyron repens and nitrogen and water-supply on nitrogen content of Impatiens parviflora . Ann. of Botan. N. S. 26:361373.
12. Welbank, P. J. 1964. Competition for nitrogen and potassium in Agropyron repens Ann. of Botan. N. S. 28:116.

Competitive Effects of Quackgrass upon Corn as Modified by Fertilization

  • J. D. Bandeen (a1) (a2) and K. P. Buchholtz (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed