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Introduction of books

Organic Practices for Fruits and Tea


High quality and consistent fruiting
– Practical course 4 by Masaaki Koiwai-


Writer: Masaaki Koiwai
Publisher: Rural Culture Association Japan
Published date: February, 2011
Price: 2,310 yen

With understanding the importance of branch as seeds for vegetables, this book guides the methods for high quality and constant bearing with organic nitrogen (amino acid fertilizer) and minerals. This book contains information about 16 kinds of fruits and tea, which are perennial crops. This is the last series of Practical Courses by Masaaki Koiwai.

Please contact book stores, on-line book stores and Rural net shop of Rural Culture Association Japan for an order

Organic Practices for Vegetables


Higher ratio of carbohydrates against nitrogen and applying minerals before nitrogen
– Practical course 3 by Masaaki Koiwai-


Writer: Masaaki Koiwai
Publisher: Rural Culture Association Japan
Published date: November, 2009
Price: 2,835 yen

This book is written about each harvest site of vegetables divided into 6 types such as leafy vegetables, outer leaf vegetables, root vegetables, potatoes, fruit vegetables and legumes. This book guides the methodology of practices of applying minerals first before nitrogen and keeping the balance of carbohydrates against nitrogen higher in the plant.
This methodology results in extraordinary high yields, high quality and highly nutritious vegetables.

Please contact book stores, on-line book stores and Rural net shop of Rural Culture Association Japan for an order

Organic Practices for Rice


High yields and high flavor
– Practical course 2 by Masaaki Koiwai-

Writer: Masaaki Koiwai
Publisher: Rural Culture Association Japan
Published date: November, 2008
Price: 1,995 yen

Proper straw treatment in autumn and pH improvement produces white root rice. Applying amino acid fertilizer used with yeast and minerals produce stable growing, flavor improvement and high yields.
A long-awaited book about secrets of the Koiwai method for growing organic rice.

Please contact book stores, on-line book stores and Rural net shop of Rural Culture Association Japan for an order

Organic Practices for Fertilizers and Compost


Guides for making and using fertilizers and compost
– Practical course 1 by Masaaki Koiwai-


Writer: Masaaki Koiwai
Publisher: Rural Culture Association Japan
Published date: December, 2007
Price: 1,800 yen

How to make, choose and use fertilizer?
Amino acid fertilizer, compost and mineral fertilizer are the three Basic fertilizers for organic practices. This book is a guide to those 3 fertilizers’ functions and effects with a lot of graphic illustrations. This book is a Koiwai method organic practices about fertilizers for both beginners and persons with experience.

Please contact book stores, on-line book stores and Rural net shop of Rural Culture Association Japan for an order

Basic and Actual of Organic Practices


-Fertilizer effect and fertilizer application planning -

Writer: Masaaki Koiwai
Publisher: Rural Culture Association Japan
Published date: March, 2005
Price: 2,700 yen

This book gives a close up on the “science of organic practices” and provides back-up of the logic for organic practices with data.
This book details the method of simple soil analysis, reading data, fertilizer application plan for each crop, making compost and making amino acid fertilizer. This book is filled with plenty of know-how for good flavor, high yield crops and gives an easy way to understand the logic of organic practices.

Please purchase from Japan Bio Farm with an included delivery fee price at 2,700 yen


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