① Drawing soil and fertilizer in cartoon form
② Drawing soil and fertilizer in cartoon form
③ Drawing soil and fertilizer in cartoon form
Drawing soil and fertilizer in cartoon form ④
A story about soil and fertilizer that gets information through bands
Where did the Korean Peninsula come from?

Volume 3: Soil and Fertilizer Plus

Part 1: Fertilizer Eyes
Changed fertilizer classification method
Types and roles of fertilizers
What nutrient ratios are used to manufacture fertilizer?
How to Read Mineral Fertilizer Packaging (1)
How to Read Mineral Fertilizer Packaging (2)
Look at the fertilizer manufacturer's warranty on the back of the bag.
Harmony of inorganic and organic fertilizers

Part 2: Inorganic Fertilizers (Compound Fertilizers)
Basic knowledge about compound fertilizer classification
The fertilizer that made bread out of air
What is the difference in the speed at which fertilizer effects occur?
Water-soluble fertilizer, water-insoluble fertilizer
What is the difference between soluble, available, and water-soluble phosphoric acid?
Why fertilizers for water and gardening are different
Why Sulfur Is Essential in Horticultural Fertilizers
What fertilizer is best for increasing fruit sugar content?
Will the fertilizer applied last year be easily absorbed?
What fertilizers will be popular in the future?
Advantages of fertilized cultivation
The Big Bang, the Periodic Table, and the Story of Plant Nutrients (The Birth of Amino Acids)
The Big Bang, the Periodic Table, and the Story of Plant Nutrients (16 Essential Elements)

Part 3: Trace elements, nutrients, and mineral fertilizers
Things to consider when purchasing trace element complex fertilizer
Which trace elements are important?
Difference between borax, boric acid and boron
How to read nutritional supplements
The price difference between powdered and bottled water-soluble fertilizers is
Buying expensive bottled nutritional supplements is like buying a foolish farmer.
The Illusion of Mineral Fertilizers

Part 4 Organic Fertilizers
Difference between mixed oil cake and mixed organic fertilizer
The difference between compost and organic fertilizer
Differences in the effectiveness of organic fertilizers and compost
How to Choose Between Expensive and Cheap Organic Fertilizers

Part 5 Compost
What is the appropriate amount of compost to use?
Phenomena that occur during the composting process
If you give a lot of compost, this kind of damage will occur.
Why Smelly Compost Is Ineffective
Appropriate sawdust ratio in compost
Effects of auxiliary materials and additives used in compost production
A combination of lime, phosphate fertilizer, and compost
21 Comparison of nutrients in compost and fertilizer

Part 6: Making Compost Tea
Compost tea like green tea
Making Organic Compost Tea
Making compost tea calcium supplement
Easy to make and effective compost tea

Part 7 Foliar Fertilization
What is the best concentration for foliar fertilization? (1)
What is the best concentration for foliar fertilization (2)
Which is better for foliar fertilization, urea or 21% compound fertilization?
Why foliar application of calcium is necessary
Making boron fertilizer easily with foliar application
Why Different Boron Concentrations Are Needed

Part 8 Acidic Soil Improver
Understanding Soil Improvement Products by Use
Lime fertilizer and alkaline fertilizer
What is fossil fertilizer?
Conditions for compost to improve acidic soil
Precautions when mixing lime fertilizer with other fertilizers

Part 9: Salt Accumulation
Causes of high salt levels in house soil
Is compost or organic fertilizer better for greenhouses?
Differences in salinity and salt accumulation in house soil
Soil and salt damage in facility cultivation
Why you need to be careful with composting due to salt accumulation
Green manure crops' effect on greenhouse soil decontamination
The difference between inorganic fertilizers that cause salt accumulation and non-inorganic fertilizers is

Part 10: Use of Seawater
Pros and Cons of Seawater Farming
Similarities between seawater and urea foliar fertilization dilution

Part 11 Organic Materials
The difference between fertilizer and organic materials
Things to keep in mind when starting organic farming
Making organic compound fertilizer
Organic compound fertilizer made with guano and langbenite

Part 12 Microbial Fertilizers
Easy microbial fermentation liquid fertilizer if you know the principle
What are the most effective ways to use microorganisms from the Agricultural Technology Center?
Why Agricultural Technology Center Microorganisms Are Good
What types of fermentation microorganisms are there?
How to make and use fermented fish liquid fertilizer?
1 stone 2 birds fermented liquid fertilizer
What is the GCM farming method of “Daebak Farming”?
The GCM effect of "Daebak Farming" is due to numbers and metabolites.
How to cultivate GCM in "Daebak Farming"?

Part 13 Soil Test
View soil test results on your smartphone
Simple interpretation of soil test results (limestone, fossil shell selection)

Part 14: Small Knowledge
Rainfall that relieves drought
Easily calculate dilution ratio
Selling rice straw as feed does more harm than good.
Precautions when mixing pesticides and fertilizers
The process of making kaolin, a type of clay from our country
Origin and low fertility of the Korean Peninsula's soil

Professor Hyeon Hae-nam of Jeju National University, known as the ‘soil doctor’, explained it through a cartoon drawn by himself.
Basic knowledge and common sense about soil and fertilizer.

Even the dirt wants to go to the hospital.
Fertilizers also have compatibility.

Only by knowing and using soil and fertilizer properly can we make the land healthy and produce high-quality agricultural products.
The shortcut to successful farming is to understand the soil well and provide the right amount of fertilizer to allow the soil to breathe.

Soil is a synthesis of all natural sciences, including chemistry, physics, mathematics, biology, and geology.
Although it is known that soil is the basis of farming, it is difficult for farmers to approach it due to its nature.
The author broadens the reader's understanding by approaching the complex science of soil and fertilizer through comics tailored to their level.
Above all, we put a lot of effort into explaining the principles of soil and fertilizer in a conversational manner, answering the questions that farmers in the field are curious about.
We also focused on easily answering questions at the farmers' level.

It consists of three volumes: Volume 1 “Soil Story,” Volume 2 “Fertilizer Story,” and Volume 3 “Adding Soil and Fertilizer.”
After the first edition published in 2012 and the revised edition published in 2014, the revised second edition of Volumes 1 and 2 was published in 2022, along with the new volume 3, “Soil and Fertilizer Plus.”
It is a bestseller in this field that is being sold repeatedly.

Volume 1, “Soil Story,” covers the basics of farming and, furthermore, everything about soil, the foundation of life, in eight parts.
Part 1, 'Soil Stories in Old Books', Part 2, 'Parents of Our Soil', provide the basics essential to understanding the origin and function of soil, while Part 3, 'Three Brothers in the Soil', and Part 4, 'Basic Knowledge of Soil' explain the characteristics and principles of soil suitable for farming.
Part 5, 'The Tug-of-War Between Soil and Roots', introduces soil and moisture management methods that every farmer should know, and Part 6, 'Soil is the Home of All Living Things', introduces the role of microorganisms in the soil.
Part 7, “Why is acidic soil bad?” introduces healthy soil management methods, and Part 8, “Nutrients that plants like,” introduces essential nutrients for plants and their absorption principles, serving as a bridge to Volume 2, “Fertilizer Story.”

Volume 2, “Fertilizer Story,” also explains everything about fertilizer in an easy-to-understand way over a total of 8 parts.
If Part 9, “There is a compatibility between fertilizers,” is a warm-up that helps with the basic understanding of fertilizers, Parts 10 to 12 provide a thorough explanation of the characteristics and functions of the three major fertilizers: nitrogen, phosphorus, and potassium.
Part 13 then covers the working principles and proper use of macronutrients such as lime, calcium sulfur, and boron, while Part 14 covers the advantages of organic fertilizers and how to select good products.

Volume 3, “Soil and Fertilizer Plus,” covers in-depth topics and new technologies related to fertilizers that were not covered in Volumes 1 and 2 over a total of 14 parts.
It provides fertilizer theory and information necessary for farmers, such as fertilizer classification improvement plans, soil testing guide using smartphones, compost manufacturing methods and appropriate usage, soil conditioners, and microbial fermentation liquid fertilizer, through a cartoon format.
We have put a lot of effort into explaining the things that farmers in the field are curious about and making it easy for ordinary farmers to understand soil and fertilizer.