Abouziena, H.F. and El-Wahed, M.S.A.A. and Eldabaa, M.A.T. and El-Desoki, E.R. (2013) Effect of sowing date and reduced herbicides rate with additives on peanut (Arachis hypogaea L.) productivity and associated weeds. Journal of Applied Sciences Research, 9 (3). pp. 2176-2187.
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Abstract
Two field experiments were conducted in 2011 and 2012 to study the effect of sowing date, weed control treatments and their interaction on peanut plant productivity and associated weeds in Nubaria region, Egypt. Peanut was planted at three dates (April 15, May 1, and May 16). Fourteen weed control treatments viz., unweeded, hand hoeing twice, one hoeing at 3 weeks after sowing (WAS) followed by Clethodim or Fluazifop-P-Butyl at 7 WAS, Bentazon applied at 2WAS followed by one hoeing at 7WAS. The three herbicides used in full rate or 0.75 rate (tank mixed with one additive i.e. urea at 1%, AMS at 2% and crop oil at 0.75). Peanut planted 15 or 30 days after the early planting date (15 April) had lower weed biomass 29 and 44% at 7WAS and 50 and 41% at 14WAS, respectively, if compared to the early planting. The efficacy of weed control treatments was increased with late sowing. Addition of crop oil to reduced Bentazon rate provided the highest control (80%) of broad leaved weeds, while addition urea to Clethodim gave excellent control of grasses (98%) and total weeds (88%). The lowest weed dry weight was recorded under the interaction of one hoeing plus Fluazifop-P-Butyl (reduced rate with AMS in the late sowing date 16/5). Delaying planting to mid May decreased the plant weight, number and weight of pods/plant and seed yield/fed by 18.0, 20.1, 19.5 and 18.7%, respectively, compared to early sowing. Early sowing significant produced more oil yield than the later sowing by 26%. Weed competition reduced the peanut oil yield by 40.2% compared to hoeing treatment. The highest oil yield was recorded with Bentazon (full rate) followed by Clethodim (0.75 rate)+urea, hoeing twice, Bentazon (0.75 rate)+AMS with insignificant differences between these superior treatments
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | peanut, chemical constituents, Clethodim, Bentazon, Fluazifop-P-Butyl, weeds, sowing date |
| Author Affiliation: | Botany Department, National Research Centre, Dokki, Cairo, Egypt |
| Subjects: | Plant Production Plant Protection Plant Physiology and Biochemistry > Plant Physiology |
| Divisions: | Groundnut |
| Depositing User: | Mr T L Gautham |
| Date Deposited: | 23 Sep 2013 03:59 |
| Last Modified: | 23 Sep 2013 03:59 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/11728 |
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