TAILIEUCHUNG - A review on efficacy of weed management methods in onion

Onion Allium cepa L. (2n=16) is the most important bulbous vegetable. It forms an indispensable part of many diets, both vegetarian and non-vegetarian. Onion is regarded as an important export oriented crop and fetches a handsome foreign exchange. Onion among vegetables has very poor competitive ability with weeds due to its inherent characteristics such as shallow root system, narrow leaf and less area. The reduction in crop yield has direct correlation with weed competition. The effective weed control involves identification of weed flora and their management through suitable methods. Hand weeding in onion is a common practice in India, but due to less availability of labourers during critical period of crop makes hand weeding difficult leading to heavy yield losses. Hence a brief review was presented to find out suitable weed management method in onion. | 2019 8 2 895-905 EXCELLENT PUBLISHERS International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 8 Number 02 2019 Journal homepage http Review Article https A Review on Efficacy of Weed Management Methods in Onion Pushpa Ujjainiya and . Choudhary Department of Horticulture . College of Agriculture Jobner-Jaipur India Corresponding author ABSTRACT Keywords Onion Stale seed bed Herbicide Pendimethalin Oxyfluorfen Article Info Accepted 10 January 2019 Available Online 10 February 2019 Onion Allium cepa L. 2n 16 is the most important bulbous vegetable. It forms an indispensable part of many diets both vegetarian and non-vegetarian. Onion is regarded as an important export oriented crop and fetches a handsome foreign exchange. Onion among vegetables has very poor competitive ability with weeds due to its inherent characteristics such as shallow root system narrow leaf and less area. The reduction in crop yield has direct correlation with weed competition. The effective weed control involves identification of weed flora and their management through suitable methods. Hand weeding in onion is a common practice in India but due to less availability of labourers during critical period of crop makes hand weeding difficult leading to heavy yield losses. Hence a brief review was presented to find out suitable weed management method in onion. Introduction Among many causes of low productivity of onion it shows more susceptibility to weed competition as compared to other crops due to its inherent characteristics such as slow germination extremely slow growing and can suffer from successive flush of weed. They have narrow upright leaves which do not shade out weeds that emerge in the row. The degree of damage caused by weeds is related to the type species and density of weeds growing in a crop community. Weed species are known to vary with season and type of .

• Sinh học
• Stale seed bed
• Review on efficacy
• Weed management methods in onion
• Weed management methods
• Crop makes hand weeding difficult leading