Photosynthetic Bacteria - Japan - ARI
by the Asian Rural Institute
submitted August 2019
Photosynthetic Bacteria
What is Photosynthetic Bacteria?
Photosynthetic bacteria are microorganisms that are able to perform anoxygenic photosynthesis with the energy from light. Some scientists say that they have been on this earth for 3.6 billion years, even when there was no oxygen.
There are three types of photosynthetic bacteria; purple sulfur bacteria, purple non-sulfur bacteria, and green sulfur bacteria. Purple sulfur bacteria and purple non-sulfur bacteria are common in Japan. Photosynthetic bacteria live in water with anaerobic conditions such as in ponds, lakes, paddy fields, swamps, and seas.
It is said that actynomycetes increase by eating the dead bodies of photosynthetic bacteria. This can prevent plants from contracting diseases.
Photosynthetic bacteria eat hydrogen sulfide which harms plants and produces amino acid and nucleic acid which promote fruit production and quality. They also produce ATP, which is a source of energy for plants.
What are the effects of Photosynthetic Bacteria?
Promoting decomposition of organic materials to make compost and to make fermented floors of animal pens.
Reducing hydrogen sulfide which is produced in the process of decomposing organic materials, especially in the paddy fields. Photosynthetic bacteria eat this harmful gas which damages the roots of rice.
Reducing the smell of animal pens by mixing photosynthetic bacteria into the feed of animals.
Improving the quality of water in fish ponds.
Protecting plants from diseases.
Amino acids such as proline and nucleic acid such as uracil make fruits more colored and sweeter.
Increasing the laying rate in chickens.
Fostering animal growth.
How to collect Photosynthetic Bacteria
Method 1
Collect mud from a pond, swamp or paddy field
Put the mud and green grass in a bucket
Cover with a plastic bag
The color of mud water turns red
Method 2
Keep the biogas liquid in a tank
The color of the biogas liquid turns red naturally
How to multiply Photosynthetic Bacteria (PSB)
Method 1
Materials
Fish meal: 2 liters
Seaweed: 100g
Brown sugar: 200g
40℃ hot water: 18 liters
PSB: 400cc
Mix materials in a 20 liter tank. Put feed into the tank first. Then pour in warm water. Lastly, add PSB. If you put PSB in first, they may die because of too much density of feed.
Keep the tank under sunlight. 40℃ is the best temperature to multiply them.
When the color of mixture becomes red, it is ready to use.
Method 2
Put 1.8 liters of 40℃ water into a 2-liter pet bottle.
Put 1 or 2 cups of fish amino acid and PSB into the pet bottle.
When the color of mixture becomes red, it is ready to use.
How to use Photosynthetic Bacteria (PSB)
Apply 200 liters/ha of PSB from an inlet of water right after transplanting rice, 45 days before heading, and 30 days before heading. You can protect the roots of rice from hydrogen sulfide.
Apply 100 to 500 times diluted PSB to pig/chicken pens once or twice a week. It reduces the smell.
0.5 to 1 liter of PSB to 2 to 3㎥ of compost. It promotes decomposition of compost.
Apply 100 to 1000 times diluted PSB to the leaves of vegetables once or twice a week. It prevents them from diseases and makes their fruits more colored and sweeter.
https://gyazo.com/7c2e4c1e464508a9d2fb8e6de8a0df32
Photosynthetic Bacteria ready for use
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