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Sugarcane (Saccharum) Production by Minimum Cultivation, Fenac, and Terbacil

Published online by Cambridge University Press:  12 June 2017

R.W. Millhollon
R.W. Millhollon*
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., U.S. Sugarcane Field Lab., Houma, LA 70361
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Abstract

Sugarcane (Saccharum interspecific hybrids) grown without cultivation but maintained relatively weed-free with herbicides and hand hoeing, produced yields of sugarcane/ha and sugar/ha in the plant, first-ratoon, and second-ratoon crops that were 100%, 95%, and 88%, respectively, of the yield of sugarcane cultivated two to four times annually. Standard cultural practice involves at least two cultivations, namely, the off-barring and the fertilizational cultivations. Additional cultivations did not substantially increase yield. When sugarcane yield was affected either by cultivation or herbicide treatment, stalk population rather than stalk weight was affected the most. Johnsongrass [Sorghum halepense (L.) Pers.] and annual weeds were controlled effectively in both cultivated and non-cultivated sugarcane with broadcast, preemergence application of fenac [(2,3,6-trichlorophenyl)acetic acid] at 5 kg/ha or terbacil (3-tert-butyl-5-chloro-6-methyluracil) at 1.8 kg/ha. Purple nutsedge (Cyperus rotundus L.), however, was controlled only with a combination of fenac or terbacil and periodic cultivation.

Type
Research Article
Information
Weed Science , Volume 25 , Issue 5 , September 1977 , pp. 431 - 436
Copyright
Copyright © 1977 by the Weed Science Society of America 

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References

Literature Cited

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