**Meet the editors**

Dr. Md Asaduzzaman is a native of Bangladesh. He received his PhD degree in Bioproduction Science from the Tottori University, Japan. He is currently working at Horticulture Research Centre, Bangladesh Agricultural Research Institute, Bangladesh. His main research focuses on the development of hydroponic techniques for fruits, vegetables, and ornamentals in greenhouse

and also the production of specialty crops under controlled-environment agriculture. His other research projects include studying the autotoxicity, a phenomenon of intraspecific allelopathy in vegetables and ornamentals through hydroponics, and developing suitable control measures to overcome. He has published numerous original research articles, book chapters, and edited books. He received a gold medal from Bangladesh Agricultural University in 2011 and the BAS-TWAS 2016 Award for the Young Scientists from Bangladesh.

Dr. Toshiki Asao is a specialist in hydroponic crop production and a professor at the Department of Agriculture, School of Life and Environmental Science, Shimane University, Japan. He is a native of Kyoto, Japan. He received his PhD degree in Agriculture from the Kyoto University. His main research focuses on the development of hydroponic techniques for vegetables and orna-

mentals in greenhouses and also the development of specialty vegetables through hydroponics under controlled-environment agriculture providing human health benefits beyond basic nutrition. His other research projects include studying the autotoxicity in vegetables and ornamentals through hydroponics and developing possible control measures. He has published numerous scientific articles, book chapters, and edited books.

Contents

**Preface VII**

**and Fruits 45**

**those Qualities 69** Ogawa Atsushi

**Fruits and Vegetables 1**

Md Asaduzzaman and Toshiki Asao

**Nutrients in Hydroponic Culture 9** Betül Çalişkan and Ali Cengiz Çalişkan

**through Hydroponic System 23**

Chapter 1 **Introductory Chapter: Potassium in Quality Improvement of**

Chapter 2 **Potassium Nutrition in Plants and Its Interactions with Other**

Chapter 3 **Potassium Nutrition in Fruits and Vegetables and Food Safety**

Chapter 4 **Potassium Fertilization in the Production of Vegetables**

da Silva Lobato and Wellington Ferrari da Silva

Chapter 5 **Cultivation Methods for Leafy Vegetables and Tomatoes with**

Chapter 6 **Software for Calculation of Nutrient Solution for Fruits and Leafy Vegetables in NFT Hydroponic System 85**

> Douglas José Marques, Francisco Donizeti Vieira Luz, Rogério William Fernandes Barroso and Hudson Carvalho Bianchini

Flávio José Rodrigues Cruz, Renato de Mello Prado, Guilherme Felisberto, Águila Silva Santos and Rafael Ferreira Barreto

Douglas José Marques, Hudson Carvalho Bianchini, Allan Klynger

**Low Potassium Content for Dialysis Patients and the Change of**
