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The Development of Periphyton Biofilm Fertilizer

Yonghong Wu of the Institute of Soil Science, Chinese Academy of Sciences in China will develop and test a periphyton biofilm fertilizer in paddy fields in Southern China, as a cheaper and easier alternative to chemical fertilizer. Periphyton is a mixture of microorganisms that grow on submerged objects in water. It is environmentally benign, can store large quantities of nutrients, and inhibit weed growth, making it attractive as a fertilizer. By selecting the optimal substrate and microorganisms for testing, the periphyton biofilm fertilizer could improve rice productivity and save labor.

More information about Labor Saving Innovations for Women Smallholder Farmers (Round 10)

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View the Grand Challenges partnership network

The Bill & Melinda Gates Foundation is part of the Grand Challenges partnership network. Visit www.grandchallenges.org to view the map of awarded grants across this network and grant opportunities from partners.