01Root development & nutrient use
Microbial activity around the roots supports root development and nutrient use by the crop.
Products | Agricultural Microbial Solutions
TOSIM DOCTOR BS
A microbial solution that revitalizes soil and supports healthy crop growth. It manages the microbial environment of the soil and root zone and supports root development and nutrient use.
OverviewHealthy crops begin with
Healthy crops begin with
healthy soil and strong roots
TOSIM DOCTOR BS uses beneficial microbes to manage the soil environment and build a stable foundation for crop growth. It can be applied throughout cultivation — from field preparation and post-transplant growth management to seasonal care of fruit trees.
2crop groups
Fruit trees, vegetables & horticultural crops
3methods
Soil application, drench, foliar spray
5kg / 990 m²
Soil application rate (300 pyeong)
5kg
Pack size
Key Features
From soil to fruit: four management points
02Soil environment management
Supplies beneficial microbes to soils that need care after continuous cropping and intensive fertilization.
03Crop growth & quality
Manages the growth foundation of crops, used with the aim of improving fruit quality such as sugar content and coloration.
04Fits your cultivation method
Apply to soil together with compost and fertilizer, or disperse in water for drench and foliar spray.
Crops & Timing
For fruit trees and vegetables, throughout cultivation
Fruit trees
- Apple, pear, peach, etc.Seasonal care
Vegetables & horticultural crops
- Green onion, pepper, napa cabbage, etc.Field prep · after transplanting
Field preparation
Mix with compost and fertilizer, spread over the soil and incorporate
After transplanting
Disperse in water for drench or foliar spray
Seasonal care of fruit trees
Combine soil application and drench according to growth stage
How to Use
Application rates by method
| Method | Label rate | Tips |
|---|---|---|
| Soil application | 5 kg per 990 m² (300 pyeong) 15 kg per 3,300 m² (1,000 pyeong) | Mix evenly with compost and fertilizer, spread, then incorporate into the soil. |
| Drench · foliar spray | Per 3,300 m² (1,000 pyeong) 15 kg product / 1,000 L water | First disperse fully in a small amount of water, then transfer to the main tank and use while stirring. |
Using with Water
Disperse thoroughly first
Adding the product to a large tank all at once may cause lumps. For 1,000 L, follow the steps below.
Prepare buckets
Fill three 20 L buckets with water.
Disperse in portions
Slowly add 5 kg of product to each bucket and disperse.
Transfer to tank
Pour the dispersed solution into the main tank.
Stir and apply
Apply while mixing evenly. The solution may look cloudy as microbes and ingredients disperse.
Product Information
Product information
| Product name | TOSIM DOCTOR BS (토심닥터 BS) |
|---|---|
| Guaranteed content | B. subtilis ≥ 1.0×106 CFU/g |
| Crops | Fruit trees, vegetables & horticultural crops |
| Application | Soil application, drench, foliar spray |
| Pack | 5 kg |
| Fertilizer registration | Registered as a soil microbial agent in Korea (Feb. 2026) |
| Where to buy | Yedang Apple & Horticulture Cooperative (Korea) |
Mixing & Storage
Mixing and storage guide
Mixing precautions
- Do not mix with fungicides, antibiotic agents, copper compounds or strong alkalis
- Allow at least 7 days after applying such agents
- When combining with other inputs, check each product's compatibility
Storage
- Store in a cool, dry place away from direct sunlight
- After opening, keep moisture out and use in one go where possible
- Pack size5 kg
Purchase & usage consultation
In Korea, TOSIM DOCTOR BS is available from Yedang Apple & Horticulture Cooperative. Overseas and bulk inquiries: Tel +82-31-8057-8250