MianSajidHussain
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26 slides
Jun 20, 2013
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Size: 5.17 MB
Language: fi
Added: Jun 20, 2013
Slides: 26 pages
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Weeds Control in Sugarcane Mian Sajid Hussain Cane Development Cell, FSML [email protected] +92-333-8382939
What is a Weed? Definitions: Any plant or vegetation, excluding fungi, interfering with the objectives or requirements of people (EWRS) A plant growing where it is not desired (WSSA)
Botanical name: Ipomoea nil L. Common name: Liseron Family : Convulvulaceae Characteristics : Perennial; produces large amount of seeds; widely distributed
Bot. name: Paederia foetida L. Common name: Lingue Family : Rubiaceae Characteristics : Perennial; reproduces mainly by rhizomes; widely distributed
Weeds compete with crops for environmental resources available in limited supply Three essential elements which have a great influence on growth: water light mineral nutrients Competition defined as the tendency of neighbouring plants to utilise the same quantum of light, ion of mineral nutrient, molecule of water, or volume of space. As a consequence, weeds may reduce yield significantly and impair crop quality.