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Mechanical, Cultural, and Chemical Control of Weeds in a Sorghum-Soybean (Sorghum bicolor)–(Glycine max) Rotation

  • O. C. Burnside (a1)


A crop rotation of sorghum [Sorghum bicolor (L.) Moench] and soybeans [Glycine max (L.) Merr.] with various weed control treatments was conducted from 1968 to 1975 at Lincoln, Nebraska, in order to improve weed control in these two crops. Poor weed control during one growing season increased weed growth and decreased yields of succeeding crops. Trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) at 1.1 kg/ha on soybeans showed greater soil carryover toxicity to sorghum planted 12 months later than did atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] at 3.4 kg/ha on sorghum to subsequently planted soybeans. Under this crop rotation green foxtail [Setaria viridis (L.) Beauv.], tall waterhemp [Amaranthus tuberculatos (Moq.) J. Sauer], and large crabgrass [Digitaria sanguinalis (L.) Scop.] decreased; whereas, velvetleaf (Abutilon theophrasti Medic), sunflower (Helianthus annuus L.), and Pennsylvania smartweed (Polygonum pensylvanicum L.) increased. Germinating weed seedlings from soil samples were greater in weedy check plots during the final years of the crop rotation due to a buildup of seed from those species that increased. Handweeding, herbicides, and plowing reduced weed populations, weed competition, and increased sorghum and soybean yields.



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1. Blake, G. R. 1965. Bulk density. Pages 374390 in Black, C. A. et al., eds. Methods of Soil Analysis. Part I. Physical and Mineralogical Properties, Including Statistics of Measurement and Sampling. Agronomy No. 9, Am. Soc. Agron., Madison, Wisconsin.
2. Burnside, O. C. 1972. Tolerance of soybean cultivars to weed competition and herbicides. Weed Sci. 20:294297.
3. Burnside, O. C. 1974. Trifluralin dissipation in soil following repeated annual applications. Weed Sci. 22:374377.
4. Burnside, O. C. and Moomaw, R. S. 1975. Sorghum growth as affected by annual applications of atrazine. Weed Sci. 23:494498.
5. Burnside, O. C. and Wicks, G. A. 1969. Influence of weed competition on sorghum growth. Weed Sci. 17:332334.
6. Dowler, C. C. and Parker, M. B. 1975. Soybean weed control systems in two southern coastal plains soils. Weed Sci. 23:198202.
7. Eaton, B. J., Russ, O. G., and Feltner, K. C. 1975. Competition of velvetleaf, prickly sida, and venice mallow in soybeans. Weed Sci. 24:224228.
8. Knake, E. L., Appleby, A. P., and Furtick, W. R. 1967. Soil incorporation and site of uptake of preemergence herbicides. Weeds 15:228232.
9. Nuland, D. S. and Dunse, J. W. 1968. The persistence of trifluralin in soil and its effect on milo yields 2 and 4 years after application. North Cent. Weed Control Conf. Res. Rep. 25:56.
10. Parka, S. J. and Tepe, J. B. 1969. The disappearance of trifluralin from field soils. Weed Sci. 17:119122.
11. Savage, K. E. 1973. Nitralin and trifluralin persistence in soil. Weed Sci. 21:285288.
12. Young, J. A. and Evans, R. A. 1976. Responses of weed populations to human manipulations of the natural environment. Weed Sci. 24:186190.


Mechanical, Cultural, and Chemical Control of Weeds in a Sorghum-Soybean (Sorghum bicolor)–(Glycine max) Rotation

  • O. C. Burnside (a1)


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