வளங்கள் Tagged: Weeds
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19-01-1995 This book has become an indispensable guide for anyone interested in knowing how to recognize, understand and control troublesomeplants. Agricultural production is threatened with a range of alien and indigenous species and our botanical heritage is under threat from a growing variety of alien...
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20-01-2017 Both in Ethiopia and in the countries of East Africa, the continuing proliferation and spread of invasive alien species (IAS) is now recognized as a serious problem, which needs to be addressed. While this situation has improved dramatically over the past 10 years, further progress has been...
- 20-01-2017 Despite the significant impacts of alien plant species (IAS), there has not been a concerted effort to tackle the problem across the region. This can mainly be ascribed to a lack of policy, little awareness and limited capacity at a national and regional level. The UN Environment-Global...
- 20-01-2017 Cradled between the Aberdare Mountains and Mount Kenya, Laikipia County is a land-use model for arid and semi-arid lands in Kenya. Its unique combination of large-scale ranches and community-owned lands host wildlife populations unrivalled in other parts of Kenya. Laikipia hosts the highest...
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25-05-2007 Weeds are the pioneer plants of disturbed soils and can adversely affect the use, economic value, and aesthetic aspect of the lands and waters they infest. Knowledge of the major mechanisms of weed survival is essential for developing effective methods of weed control to maximize the use and...
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Access Agriculture Training Video The parasitic weed striga causes more damage to cereal crops in poor soils, so both problems have to be tackled together. In this video we will learn why it is important to combine at least three control methods to reduce striga and obtain a good yield of...
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Access Agriculture Training Video Effective weed management can increase yields by more than 50%, but usually takes a lot of time. As a farmer it is therefore worthwhile investing in labour-saving weed management tools. In this video you can learn how to control weeds in lowland rice using the...
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- Abstract ,Crop Protection, 2015 Weeds are a hidden foe for crop plants, interfering with their functions and suppressing their growth and development. Yield losses of 34% are caused by weeds among the major crops, which are grown worldwide. These yield losses are higher than the losses caused by...
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Access Agriculture Training Video Effective weed control can increase yields by more than 50%. As a farmer it is therefore worthwhile taking a closer look. In this video you can learn how to control weeds most effectively. Available languages Arabic Ateso Bangla Burmese Chichewa / Nyanja English...
- Also available in:
- Français (fr)
- বাংলা (bn)
- English (en)
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Weeds are important biotic constraint to food production. Weeds compete with crops for the same resources, basically water, nutrients, light and carbon dioxide. Furthermore, they are alternate hosts for crop pests and pathogens. Moreover, some of them lack autotrophy and fully develop only by...