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Barrier isolation

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1. In some places, the natural topographic features such as mountains, rivers, forests can serve as the most effective barrier.

2. A crop barrier with Maize, Sugarcane, Sesbania covering a distance of 30 m would also serve isolation.

3. Artificial barrier with polythene sheets of about 2 m height can also be used for in small scale seed production. However, the most ideal locations are the areas covered with hillocks and mountains, which act as natural barriers.

File Courtesy: 
Agro Techniques for Hybrid Rice Cultivation and Seed Production - 2005, DRR Training Manual
Photo Courtesy: 
Dr. Hari Prasad ( DRR)
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