Abstract
Our country has provided about 52% of vegetables from domestic production, the rest part imported others from outside. Thus, imports of potatoes and vegetables have been reduced last year, for this reason, main vegetable seeds, were produced domestically and provided over 80 percent of the country’s demand. In the future domestic production demand of vegetable goal set working to provide by 100 percent from government our country in this connection issues urgent need to solve sowing seeds, variety supply, seed production, and plant protection.
 According to our research, during the growing season, 150-350 weeds growing per 1m2 of rounded onions shows that the amount of crop damage is relatively high. For the purpose of control against weeds in the onion field with 3 repetitions of 7 variants of 2 types of herbicides are conducted experimental research. These include; pre-emergent Estamp (Stomp) herbicide applied in doses 2.5; 3.5 l/ha that controls all types of weeds, but showed results of 65.2-72.4%. The growing season during a selective post-emergent of Gaur herbicide in doses 0.7; 0.9l/ ha used against broadleaf and grassy weeds that became clear of weed species density reduced by 92.7-93.4%. It was tested in this study Pendimethalin, 33% + Oxyfluorfen 24 % mixture herbicides have reduced the number of weeds by 92.4-94.1%.
Highlights
Onion (Allium cepa L.), is an important species belonging to family Alliaceae
Experimental details The experiment consisted of seven herbicide variant viz.., Pendimethalin, Oxyfluorfen, Pendimethalin 30% EC + Oxyfluorfen 24.0% EC in different concentrations with control
The results demonstrate a slight benefit of the Pendimethalin, 33% weed control program compared to the Oxyfluorfen (24%) herbicide in terms of weed control efficacy
Summary
Onion (Allium cepa L.), is an important species belonging to family Alliaceae. It is an indispensable item in every kitchen as vegetable and condiment used to flavor many of the food kinds of stuff. Onion is popularly known as ‘Queen of the kitchen’ It is one of the most important vegetable crops in the world with a total production of about 61 million tonnes (FAO, 2006). Onion exhibits greater susceptibility to weed competition as compared to other crops due to its inherent characteristics such as slow germination, extremely slow growth in the initial stages, short stature, non-branching habit, sparse foliage, and shallow root system. This favors quick and fast growth of weeds in the initial stages and competition tends to be severe. The aim of the experiment was to develop a control method suitable for the biological characteristics of dominate weeds against to choice useful dose, treatment do time and herbicide type in onion field
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