Sorghum plants excrete phenolic acids which reduce subsequent crop yields. These acids accumulate in field soil by combining with soil and clay particles to form stable complexes which remain until degraded by bacterial metabolism. The amount of phenolic acids in soil samples were obtained by gas chromatography measurements, while Azotobacter populations were obtained by plate counts in 40 sorghum field samples from Denton County, Texas. One can conclude that increasing the Azotobacter population in the soil increased the degradation rate of phenolic acids proportionally. It is proposed that seed inoculation will introduce selected strains of Azotobacter into the soil. The presence of Azotobacter should increase crop size in subsequent plantings.
| Identifer | oai:union.ndltd.org:unt.edu/info:ark/67531/metadc501189 |
| Date | 08 1900 |
| Creators | Al-Hadhrami, Mohamed N. (Mohamed Nasser) |
| Contributors | Vela, G. Roland, 1927-, Smith, Don Wiley, O'Donovan, Gerard A. |
| Publisher | University of North Texas |
| Source Sets | University of North Texas |
| Language | English |
| Detected Language | English |
| Type | Thesis or Dissertation |
| Format | vi, 44 leaves : ill., maps, Text |
| Coverage | United States - Texas - Denton County |
| Rights | Public, Al-Hadhrami, Mohamed N. (Mohamed Nasser), Copyright, Copyright is held by the author, unless otherwise noted. All rights reserved. |
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