Bio stimulants materials for rice
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Q. What are Bio Stimulants?
A. Unlocking the Power Inside Plants
Climate change is intensifying environmental stresses such as heat, drought, cold, salinity, heavy rain, and extreme winds, making stable crop production increasingly challenging.
Not fertilizers. Not pesticides.
Bio stimulants help plants unlock their natural potential.Maruzen has developed a bio stimulant derived from duckweed.
By activating inherent physiological functions, they enhance growth, quality, yield, and stress tolerance—supporting stable and sustainable agriculture even under harsh conditions.
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About Duckweed (Lemna aoukikusa)
- Commonly found in rice paddies and ponds throughout Japan, as an annual floating plant.
- Shaped like a series of several leaflets. One root extends from the second phloem into the water. It increases asexually by nutritional reproduction and is highly proliferative.
- It is known that stress-resistant substances are produced and released by stress such as dryness, high temperature, and low temperature.
Lemna aoukikusa
Field trial
Main target crop: Rice
In Japan, the product is currently sold as a Bio Stimulants formulation exclusively for rice.
Effect 1 Promotes root growth
Control
PLANT EXTRACT POWDER BS
Variety: Mizuho no Shine
Effect 2 Promotes branching
Variety: Bear of the Forest
Effect 3 Increased yield
Trials with Japonica rice
Variety: Gohyakumangoku
Trials with Indica rice
The trials are also conducted with Small-scale Farmers. During the seedling stage, the crops were affected by damage from apple snails, resulting in lower-than-expected performance.
- We have confirmed the effectiveness of this product with both indica and japonica rice.
- Good results were also confirmed for other grains, vegetables, flowers, etc.
- Field tests were conducted overseas, where the environment is more severe than in Japan.
Customer Testimonials
What farmers are saying?
Many farmers have found it to be effective!
"Waste rice has decreased."
Rice farmer, Hokuriku region
"Increased yield."
Rice farmer, Kanto region
"The number of stems and panicles increased ‼"
Rice farmer, Kyushu region
* Hokuriku, Kanto, Chugoku, Kyushu (Japan, 24 individuals)
How to Use
- No hassle!
- Only seed treatment!
- Just dissolve the material (powder) in water and soak the rice seed for a day.
Soak the seed for 24 hours in PLANT EXTRACT POWDER BS
STEP. 1
Dissolve PLANT EXTRACT POWDER BS in water.
STEP. 2
Add rice seeds to the solution.
STEP. 3
Soak seeds for 24 hours.
After STEP 3, proceed with standard germination process, and then please sow the seeds.
Mechanism of action (environmental stress tolerance)
Summary
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Seedling stage
Root growth
Restores stress caused by dense seedlings during seedling raising to normal conditions and creates a healthy root zone.
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Growing season
the number of stems & panicles
Reduces stress caused by transplanting rice and ensures the number of stalks and ears in the early stages.
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Time of maturity
whole kernel rate
Increased yield due to increased thousand-grain weight and reduced broken rice.
Development story
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Product developer : Hirokazu OnoFrom Paddy Fields to Performance.
Duckweed has long thrived alongside rice in paddy fields. Inspired by this natural coexistence, we uncovered a beneficial interaction between the two plants through joint research with Shiseido Co., Ltd. Our studies revealed that unique compounds found in duckweed can support rice growth.
By globally screening duckweed varieties rich in these compounds and combining them with our proprietary selection technology, we have created a new generation bio stimulant.
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The “Dream” of PLANT EXTRACT POWDER BS
By contributing to the stabilization of food production and support for producers through the power of plants, we want to contribute to solving the world's food and poverty problems.
To pass on nature’s bounty to the next generation
