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Friday, January 16, 2015

Seed Coatnig


The primary way of enhancing seed performance is through the addition of chemicals to protect the seed from pathogens. These are generally fungicides, although insecticides and other protecting agents can also be applied in this way.

In recent years, film-coating methods have been developed In film coating, the chemicals are applied in a polymer that is sprayed on the seeds as they fall though a specialized machine. The polymer is rapidly dried, so that the seeds emerge with a complete, dry polymeric coating.

This coating does not rub off the seeds, greatly reducing worker exposure and waste. In addition, colors can be added to the polymers to code different varieties or seed lots. Large-scale units capable of treating large quantities of seeds have been developed, making it feasible to treat high-volume agronomic crops by this method as well.

The coatings are also being used to delay germination after planting, such as for timing the emergence of parental lines at different times to ensure synchronous flowering for hybrid seed production.

Thursday, June 19, 2014

Saturday, April 12, 2014

Benefits of the ‘Agriculture Demonstration Plots’ in Africa

Benefits of the ‘Agriculture Demonstration Plots’ in Africa
n  As part of the challenges in introducing new technologies to small scale farmers in Africa,  I have found three main issues:
1.     Lack of farmer funds  and  conservative  notions  that make them  hesitate  to accept  new technologies, and by  doing that, risk the known  methods
2.     As many of them don’t know how to read, written documents that introduce the new methods are not effective; simply,   they can’t use them
n  As a result, we have started establishing demonstration plots by ourselves or in collaboration with our development partners.
n  In this aspect, we are now able  to :
·        Showcase success stories
·        Involve the community as they maintain the plots
·        Encourage the communities  to  copy and paste the new  technologies