ISSN 2285-5785, ISSN CD-ROM 2285-5793, ISSN ONLINE 2285-5807, ISSN-L 2285-5785
 

USING DIFFERENT METHODS OF ADDING HERBICIDES IN CONTROLLING WATER HYACINTH (Eichhornia crassipes) AND REDUCE IN WATER ENVIRONMENT POLLUTION

Published in Scientific Papers. Series A. Agronomy, Vol. LXI, Issue 1
Written by Adnan AL-WAGGA, Omar AL-GBURI

The experiment was conducted during the growing season 2017 at Baghdad (Iraq). The aim of study is controlling Water hyacinth and decrease pollution in water by using two herbicides, glyphosate and 2.4-D in a different concentration. The experiment application was set out as factorial experiment in randomization complete block design with three replicates and three factors:1-the types of herbicides with different doses and different methods application, 2-the replication of controlling and 3-the duration time, to get the readings after controlling. The results showed that Glyphosate herbicide it more effective than 2.4-D in reducing fresh weight plant and in percentage of disreducing regrowth up to 17.59% in all durations after controlling. The addition of the wiping gave results similar to the spraying method during different time periods and gave same result with spraying in different period specially when use Glyphosate in rate (1:10) and (1:5) (herbicide: water) concentrations and decrease pollution. It was observed that the period between two applications of 15-30 days is more favorable for controlling water hyacinth plant in which it gives 92.13% control when using glyphosate at dose of 450 g/acre when applied as spray or wiping.

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