Testing of Irrigation Best Management Guidelines1998-1999

Contents

Disclaimer

Foreword

Executive Summary

1 Introduction

1.1 Background

1.2 Summary of Indicators and Guidelines Reports

1.3 Testing the Concept and Guidelines

2 Summary of 1997/98 Project

2.1 Methodology

2.2 Difficulties Encountered

2.2.1 Measuring Flow and Depths Applied

2.2.2 Providing Regular Soil Moisture Data to Farmers

2.2.3 Unsuitable Worksheets

2.2.4 A Summer of Extremes

3 Project Objectives For 1998/99

3.1 Objective of Study

3.2 Specific Objectives of 1998/99 Project

3.3 Project Farms

3.4 Proposed Work Program

4 Spray Irrigated Dairy Farm

4.1 Irrigation System Description

4.2 Equipment Installation

4.2.1 Soil Moisture Measuring Equipment

4.2.2 Flow Measuring Equipment

4.2.3 Irrigation Management Spreadsheet

4.3 Irrigation Plan

4.4 Data Collection and Analysis

4.4.1 Soil Moisture Data

4.4.2 Flow Measurement Data

4.5 Irrigation Management

4.5.1 Operation

4.5.2 Maintenance

4.6 End of Season Indicators

4.6.1 Milk Production

4.6.2 Seasonal Water Use

4.6.3 Energy Use

4.6.4 Water Stored in The Root Zone

4.7 Seasonal Indicators

5 Border Strip Irrigated Dairy Farm

5.1 Irrigation System Description

5.2 Equipment Installation

5.2.1 Soil Moisture Measuring Equipment

5.2.2 Flow Measuring Equipment

5.2.3 Irrigation Management Spreadsheet

5.3 Irrigation Plan

5.4 Data Collection and Analysis

5.4.1 Soil Moisture Data

5.4.2 Flow Measurement Data

5.5 Irrigation Management

5.5.1 Operation

5.5.2 Maintenance

5.6 End of Season Indicators

5.6.1 Milk Production

5.6.2 Seaonal Water Use

5.6.3 Water Stored In The Root Zone

5.7 Seasonal Indicators

6 Spray Irrigated Cropping Farm

6.1 Irrigation System Description

6.2 Summary of Case Study Findings

6.3 Equipment Installation

6.3.1 Soil Moisture Measuring Equipment

6.3.2 Flow Measuring Equipment

6.3.3 Irrigation Management Spreadsheet

6.4 Irrigation Plan

6.5 Data Collection And Analysis

6.5.1 Soil Moisture Data

6.5.2 Flow Measurement Data

6.6 Irrigation Management

6.7 End Of Season Indicators

6.7.1 Crop Production

6.7.2 Seasonal Water Use

6.7.3 Water Stored In The Root Zone - Wheat

6.7.4 Water Stored In The Root Zone - Potatoes

6.8 Seasonal Indicators

7 Conclusions

7.1 Summary

7.1.1 Flow Measurement

7.1.2 Soil Moisture Measurement

7.1.3 Worksheets

8 Recommendations

References

Acknowledgements

Appendix I: Soil Moisture Data for Spray Irrigated Dairy Farm

Appendix II: Soil Moisture Data for Border-strip Dairy Farm

Appendix III: Soil Moisture Data for Spray Irrigated Cropping Farm

Contact for Enquiries

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PO Box 2526
Wellington, NEW ZEALAND

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