这 Link 用你的语言不存在, 用...查看: বাংলা (bn), हिन्दी भाषा (hi), English (en), Français (fr),
或使用谷歌翻译:  

www.accessagriculture.org/spotted-se...seased-seed

Access Agriculture Training Video

There are many problems with poor seed, and spotted and discoloured seed are some of the major ones. Spotted seeds can't be removed by winnowing or seed flotation. They can only be removed by manual sorting. This video will show you how to clean seed as one of the interventions to produce and use healthy seed. 

 

Available languages:

Ateso   Bangla   Burmese   Chichewa / Nyanja   Dioula   English   French   Hindi   Kiswahili   Luganda   Lugbara   Luo (Uganda)   Mooré   Runyakitara   Tumbuka