Chapter 6 Key Irrigation Technologies and Substrate Choice for Soilless Potted Flowers in Greenhouses

1. Introduction

2. Experimental site and methods

2.1. Site and experiment description

2.2. Experimental methods

3. Impact of various low irrigation threshold on water utilization and growth of facility drip soilless culture anthurium

3.1. Experimental plant and design

3.2. Results and discussion

3.2.1. Impact of various low irrigation threshold on Moisture content of substrate with drip irrigation

3.2.2. Influence to anthurium irrigation water amount from various low irrigation threshold treatments under drip irrigation conditions

3.2.3. Influence to anthurium growth status from various low irrigation threshold under drip conditions

3.2.4. Influence to anthurium water consumption from various low irrigation threshold under drip irrigation conditions

3.2.5. Proper lower irrigation limit for soilless culture anthurium under drip irrigation conditions in a multi-span greenhouse

3.3. Conclusions

4. Ebb-and-flow irrigation technology for soilless potted anthurium

4.1. Experimental plant and design

4.2. Results and discussion

4.2.1. Dynamics of substrate moisture content

4.2.2. Irrigaiton timing and irrigation water use efficiency

4.2.3. Water consumption of anthurium

4.2.4. Growth and quality of anthurium

4.2.5. Suitable irrigation system for anthurium

4.3. Conclusions

5. Experimental research on suitable dripper discharge for potted anthurium with soilless culture

5.1. Experimental plant and design

5.2. Results and discussion

5.2.1. Influence to water consumption of soilless potted anthurium from emitters with various dripper flows

5.2.2. Influence to irrigation period of soilless potted anthurium from emitters with various dripper flows

5.2.3. Influence to anthurium growth and quality from emitters with various dripper flows

5.2.4. Selection of drip irrigation emitters suitable for tested soilless potted anthurium

5.3. Conclusions

6. Research on moisture characteristic parameters for soilless culture substrate

6.1. Test design

6.2. Results and analysis

6.2.1. Porosity

6.2.2. Analysis of permeability coefficient

6.2.3. Water characteristic curve

6.2.4. Analysis of horizontal diffusivity

6.2.5. Comprehensive analysis

6.3. Conclusions

Author details

References