1.

Record Nr.

UNINA9910822257003321

Autore

Raviv Michael

Titolo

Soilless culture : theory and practice / / Michael Raviv, J. Heinrich Lieth

Pubbl/distr/stampa

Amsterdam ; ; London, : Elsevier, 2008

ISBN

1-281-11219-4

9786611112196

0-08-055642-6

Edizione

[1st ed.]

Descrizione fisica

1 online resource (625 p.)

Altri autori (Persone)

LiethJohann Heinrich <1955->

Disciplina

631.585

Soggetti

Hydroponics

Horticulture

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Front Cover; Soilless Culture: Theory and Practice; Copyright Page; Table of Contents; List of Contributors; Preface; Chapter 1 Significance of Soilless Culture in Agriculture; 1.1 Historical Facets of Soilless Production; 1.2 Hydroponics; 1.3 Soilless Production Agriculture; References; Chapter 2 Functions of the Root System; 2.1 The Functions of the Root System; 2.2 Depth of Root Penetration; 2.3 Water Uptake; 2.4 Response of Root Growth to Local Nutrient Concentrations; 2.4.1 Nutrient Uptake; 2.4.2 Root Elongation and P Uptake; 2.4.3 Influence of N Form and Concentration

2.5 Interactions Between Environmental Conditions and Form of N Nutrition2.5.1 Temperature and Root Growth; 2.5.2 Role of Ca in Root Elongation; 2.5.3 Light Intensity; 2.5.4 pH; 2.5.5 Urea; 2.5.6 Mycorrhiza-Root Association; 2.6 Roots as Source and Sink for Organic Compounds and Plant Hormones; 2.6.1 Hormone Activity; References; Further Readings; Chapter 3 Physical Characteristics of Soilless Media; 3.1 Physical Properties of Soilless Media; 3.1.1 Bulk Density; 3.1.2 Particle Size Distribution; 3.1.3 Porosity; 3.1.4 Pore Distribution; 3.2 Water Content and Water Potential in Soilless Media

3.2.1 Water Content3.2.2 Capillarity, Water Potential and its Components; 3.2.3 Water Retention Curve and Hysteresis; 3.3 Water Movement in Soilless Media; 3.3.1 Flow in Saturated Media; 3.3.2 Flow



in an Unsaturated Media; 3.3.3 Richards Equation, Boundary and Initial Conditions; 3.3.4 Wetting and Redistribution of Water in Soilless Media - Container Capacity; 3.4 Uptake of Water by Plants in Soilless Media and Water Availability; 3.4.1 Root Water Uptake; 3.4.2 Modelling Root Water Uptake; 3.4.3 Determining Momentary and Daily Water Uptake Rate

3.4.4 Roots Uptake Distribution Within Growing Containers3.4.5 Water Availability vs. Atmospheric Demand; 3.5 Solute Transport in Soilless Media; 3.5.1 Transport Mechanisms - Diffusion, Dispersion, Convection; 3.5.2 Convection-Dispersion Equation; 3.5.3 Adsorption - Linear and Non-linear; 3.5.4 Non-equilibrium Transport - Physical and Chemical Non-equilibria; 3.5.5 Modelling Root Nutrient Uptake - Single-root and Root-system; 3.6 Gas Transport in Soilless Media; 3.6.1 General Concepts; 3.6.2 Mechanisms of Gas Transport; 3.6.3 Modelling Gas Transport in Soilless Media; References

Chapter 4 Irrigation in Soilless Production4.1 Introduction; 4.1.1 Water Movement in Plants; 4.1.2 Water Potential; 4.1.3 The Root Zone; 4.1.4 Water Quality; 4.2 Root Zone Moisture Dynamics; 4.2.1 During an Irrigation Event; 4.2.2 Between Irrigation Events; 4.2.3 Prior to an Irrigation Event; 4.3 Irrigation Objectives and Design Characteristics; 4.3.1 Capacity; 4.3.2 Uniformity; 4.4 Irrigation Delivery Systems; 4.4.1 Overhead Systems; 4.4.2 Surface Systems; 4.4.3 Subsurface; 4.5 Irrigation System Control Methods; 4.5.1 Occasional Irrigation; 4.5.2 Pulse Irrigation

4.5.3 High Frequency Irrigation

Sommario/riassunto

Plant production in hydroponics and soilless culture is rapidly expanding throughout the world, raising a great interest in the scientific community. For the first time in an authoritative reference book, authors cover both theoretical and practical aspects of hydroponics (growing plants without the use of soil). This reference book covers the state-of-the-art in this area, while offering a clear view of supplying plants with nutrients other than soil. Soilless Culture provides the reader with an understanding of the properties of the various soiless media and how these properties affec