Paper Details

Sugar beet (Beta vulgaris L.) response to herbicide tank-mixing and Humic acid

Ali Seydabadi, Mohammad Armin

DOI: https://dx.doi.org/10.12692/ijb/4.12.339-345

Int. J. Biosci. 4(12), 339-345. June, 2014. (PDF)

Abstract:

To investigate the tank-mixing of herbicides and Humic acid to improve the management of weeds in sugar beet , an experiment was conducted in a randomized complete block design with four replications in private farm located in the village in Khorramabad Jovin in 2012-13. The treatments were as follows: chloridazon at 3.2 Kg ai ha-1 mixing with humic acid, phenmedipham at 0.78 Kg ai ha-1 mixing with humic acid, desmedipham at 0.54 Kg ai ha-1 mixing with humic acid, chloridazon + desmedipham at 1.7 and 0.27 Kg ai ha-1 mixing with humic acid, chloridazon + phenmedipham at 1.7 and 0.39 Kg ai ha-1 mixing with humic acid, chloridazon + phenmedipham + desmedipham at 1.1, 0.29 and 0.18 Kg ai ha-1 mixing with humic acid and weed free and weedy controls. Herbicide was done at 4 to 6 leaf stage of sugar beet. Humic acid with Humax brand name was applied as 4 liters per hectare . The results showed that the highest yield of shoot, root yield and sugar yield was obtained by tank-mixing of chloridazon + phenmedipham with Humic acid. Humic acid application in combination with herbicides was increased Non-sugar percentage, so that the highest levels of gross sugar was obtained when chloridazon and humic acid were mixed. Root impurities was not affected by herbicide mixture but adding humic acid increased the percentage of root impurity. Overall, the results showed that the mixture chloridazon + phenmedipham with Humic acid had highest root yield and sugar yield.