Em4885 irrigation management practices to protect ground water

More documents

Recommendations

Info

Figure 3-3. Schematic of the root zone during an irrigation . . . . 3-10 Figure 4-1. Depiction of irrigation resulting in poor distribution uniformity and excessive deep percolation . . . . . 4-11 Figure 4-2. Depiction of irrigation resulting in poor distribution uniformity and insufficient irrigation in parts of the field . . . 4-12 Figure 4-3. Depiction of irrigation sufficiently watering the entire field with good distribution uniformity and application efficiency . . . 4-13 Figure 4-4. Depiction of irrigation resulting in good distribution uniformity but poor irrigation efficiency . . . . . . 4-14 Figure 4-5. Schematic of water well showing recommended configuration of discharge piping in order to test flow accurately . . . . 4-19 Figure 4-6. Schematic of design for Replogle flume-Figure 3 in Farmer’s Bulletin 2268, published by USDA . . . . 4-20 Figure 4-7. Example pump test report . . . . . . 4-22 Figure 4-8. Schematic indicating the different categories of water coming into and going out of the effective root zone . . . . . 4-26 Figure 4-9. Example graph of tensiometer readings used to guide irrigations . . 4-29 Figure 4-10. Schematic of effects of poor down-row uniformity during a furrow irrigation . 4-36 Figure 4-11. Schematic diagram showing effects of poor cross-row uniformity due to compaction from tractor tires . . . . . 4-37 Figure 4-12. Poor distribution uniformity due to variable soils in a field . . . 4-38 Figure 4-13. Schematic of a surge irrigation showing water advance at the end of each of three surges. . . . . . . 4-41 Figure 4-14. Schematic of lateral offsetting . . . . . . 4-53 Figure 4-15. Schematic of fertigation system meeting minimum requirements for antipollution devices (taken from PNW 360, Chemigation in the Pacific Northwest by W.L. Trimmer, Tom Ley, G. Clough, and D. Larsen) . . 4-78 Figure 4-16. Schematic of chemigation system meeting minimum requirements for antipollution devices (taken from PNW 360, Chemigation in the Pacific Northwest by W.L. Trimmer, Tom Ley, G. Clough, and D. Larsen) . 4-90 xii
Figure 5-1a. Water Quality Conservation Plan Development Guide used by Franklin Conservation District-page 1. . . . . . 5-7 Figure 5-1b. Water Quality Conservation Plan Development Guide by Franklin Conservation District-page 2, Irrigation Water Management . . . 5-8 Figure 5-1c. Water Quality Conservation Plan Development Guide by Franklin Conservation District-page 3, Nitrogen/Nutrient Management . . . 5-9 Figure 5-1d. Water Quality Conservation Plan Development Guide by Franklin Conservation District-page 4, Cultivation/Crop Residue Management and Soil/Geology . 5-10 Figure 5-1e. Water Quality Conservation Plan Development Guide by Franklin Conservation District-page 5, Pesticide Management . . . . 5-11 LIST OF TABLES Table 2-1. Beneficial Uses by Waterbody Classification (Table 2-2 in Washington Nonpoint Source Assessment and Management Program, published by Department of Ecology, October 1989) . . . . . 2-6 Table 2-2. Water Quality Criteria by Classification (Table 2-3 in Washington Nonpoint Source Assessment and Management Program, published by Department of Ecology, October 1989) . . . . . 2-7 Table 2-3. Sources for Best Management Practice Lists (Table 3-1 in Washington Nonpoint Source Assessment and Management Program, published by Department of Ecology, October 1989) . . . . . 2-19 Table 3-1. Guidelines for Interpretation of Water Quality for Irrigation (from FAO 29A, rev A by Westcott and Ayers, used by permission) . . 3-18 Table 4-1. Guide for Estimating Soil Moisture Condition - taken from Estimating Soil Moisture by Feel and Appearance, published by SCS . . . 4-28 Table 4-2. Pounds of nitrogen applied per acre due to nitrate-N in irrigation water (developed by Franklin Conservation District) . . . . 4-67 Table 4-3a. Livestock manure production and properties (from WSU-CE publication EB1719, Animal Manure Data Sheet, by R. E. Hermanson and P. K. Kalita) . 4-70 Table 4-3b. Fertilizer nutrients in fresh manure (from WSU-CE publication EB1719, Animal Manure Data Sheet, by R. E. Hermanson and P. K. Kalita) . . 4-71 Table 6-1. List of Conservation Districts signing the Compliance Memorandum of Agreement and Their Levels of Compliance . . . . 6-6 xiii
Page 1 and 2: EM4885 IRRIGATION MANAGEMENT PRACTI
Page 5 and 6: TABLE OF CONTENTS List of Figures .
Page 7 and 8: IP 2.01.08 - Consider changing the
Page 9 and 10: Section 3- Apply Fertilizer Properl
Page 11: Determining reasonable goals . . .
Page 15 and 16: 1 CHAPTER Purpose INTRODUCTION This
Page 17 and 18: 1 CHAPTER 4. Objective 4.00 - Manag
Page 19 and 20: CHAPTER2.
Page 21 and 22: Water Quality as an Economic Issue
Page 23 and 24: 5 CHAPTER 2 Nonpoint source polluti
Page 25 and 26: 7 CHAPTER 2 Table 2-1. Beneficial u
Page 27 and 28: Not Assessed 86% Percent of Tota
Page 29 and 30: Major Causes of Impairment for Estu
Page 31 and 32: Standards for ground water quality
Page 33 and 34: 15 CHAPTER 2 Blanket statements con
Page 35 and 36: Included in the general strategy st
Page 37 and 38: 19 CHAPTER 2 It is important to not
Page 39 and 40: 1 CHAPTER 3 CHAPTER 3.
Page 41 and 42: Hereafter, when the term “detachm
Page 43 and 44: 5 CHAPTER 3 The nitrogen cycle, sho
Page 45 and 46: 7 CHAPTER 3 Organic forms of phosph
Page 47 and 48: 3. Soil water conditions - most che
Page 49 and 50: 11 CHAPTER 3 Essentially there is a
Page 51 and 52: 13 CHAPTER 3 Retention of water by
Page 53 and 54: 15 CHAPTER 3 Management allowed dep
Page 55 and 56: Excessive, or imbalanced, dissolved
Page 57 and 58: 19 CHAPTER 3 TABLE 3-1. Guidelines
Page 59 and 60: 21 CHAPTER 3 Salts leached from the
Page 61 and 62: 4 CHAPTER Purpose OVERALL MANAGEMEN
Page 63 and 64:
4 CHAPTER Implementing the Practice
Page 65 and 66:
4 CHAPTER IP 1.00.01 Install Concre
Page 67 and 68:
4 CHAPTER IP 1.00.03 - Install Flex
Page 69 and 70:
4 CHAPTER OVERALL MANAGEMENT OBJECT
Page 71 and 72:
4 CHAPTER figures depicts the depth
Page 73 and 74:
4 CHAPTER FIGURE 4-3. Depiction of
Page 75 and 76:
4 CHAPTER Efficient, Effective Irri
Page 77 and 78:
4 CHAPTER Possible Effects on Yield
Page 79 and 80:
4 CHAPTER These include: 1. Flumes,
Page 81 and 82:
4 CHAPTER IP 2.01.02 - Monitor Pump
Page 83 and 84:
4 CHAPTER IP 2.01.03 - Evaluate the
Page 85 and 86:
4 CHAPTER ECe LF = ................
Page 87 and 88:
4 CHAPTER Although the previous equ
Page 89 and 90:
4 CHAPTER Figure 4-9 is an example
Page 91 and 92:
4 CHAPTER 2. Determine how much to
Page 93 and 94:
4 CHAPTER Using the previous exampl
Page 95 and 96:
4 CHAPTER Contact the local WSU Coo
Page 97 and 98:
4 CHAPTER Note that the opportunity
Page 99 and 100:
4 CHAPTER Soil variability may be s
Page 101 and 102:
4 CHAPTER IP 2.02.03 - Use Surge-Fl
Page 103 and 104:
4 CHAPTER IP 2.02.05 - Install a Su
Page 105 and 106:
4 CHAPTER IP 2.02.09 - Rip Hardpans
Page 107 and 108:
4 CHAPTER IP 2.02.12 - Reduce Furro
Page 109 and 110:
4 CHAPTER Infiltration rates and ap
Page 111 and 112:
4 CHAPTER Description Sprinkle syst
Page 113 and 114:
4 CHAPTER The actual technique invo
Page 115 and 116:
4 CHAPTER IP 2.03.08 - Minimize Sur
Page 117 and 118:
4 CHAPTER SECTION 4 - PRACTICES FOR
Page 119 and 120:
4 CHAPTER Finally, different emissi
Page 121 and 122:
4 CHAPTER Description One of the gr
Page 123 and 124:
4 CHAPTER Possible Effects on Water
Page 125 and 126:
4 CHAPTER IP 3.01.02 - Consider Con
Page 127 and 128:
4 CHAPTER IP 3.02.02 - Analyze Irri
Page 129 and 130:
4 CHAPTER 4. Toxic materials conten
Page 131 and 132:
4 CHAPTER Table 4-3b. Fertilizer nu
Page 133 and 134:
4 CHAPTER IP 3.02.07 - Develop Real
Page 135 and 136:
4 CHAPTER IP 3.03.05 - Incorporate
Page 137 and 138:
4 CHAPTER IP 3.03.10 - Use Fertigat
Page 139 and 140:
4 CHAPTER Other important factors t
Page 141 and 142:
4 CHAPTER SECTION 1 - OVERALL GOOD
Page 143 and 144:
4 CHAPTER IP 4.01.03 - Schedule App
Page 145 and 146:
4 CHAPTER IP 4.01.07 - Mix and Load
Page 147 and 148:
4 CHAPTER IP 4.01.11 - Consider Con
Page 149 and 150:
4 CHAPTER IP 4.02.05 - Use Chemigat
Page 151 and 152:
4 CHAPTER 6. Know how much water is
Page 153 and 154:
4 CHAPTER SECTION 1 - REDUCE CONTAM
Page 155 and 156:
4 CHAPTER Description Depending on
Page 157 and 158:
4 CHAPTER SECTION 2 - MANAGE SURFAC
Page 159 and 160:
4 CHAPTER Possible Effects on Water
Page 161 and 162:
4 CHAPTER IP 6.00.04 - Identify and
Page 163 and 164:
CHAPTER 5 DEVELOPING AN ON-FARM WAT
Page 165 and 166:
CHAPTER 5 Reducing availability The
Page 167 and 168:
CHAPTER 5 Example of Planning Check
Page 169 and 170:
CHAPTER 5 C.) Cooperator Progress/C
Page 171 and 172:
CHAPTER 5 U = USED S = SUGGESTED NA
Page 173 and 174:
CHAPTER 5 U = USED S = SUGGESTED NA
Page 175 and 176:
1 CHAPTER 6 CHAPTER 6.
Page 177 and 178:
Irrigation Districts 3 CHAPTER 6 Th
Page 179 and 180:
Reacting to Pollution - The Complia
Page 181 and 182:
TABLE 6-1. List of Conservation Dis
Page 183 and 184:
CHAPTER 7 Purpose RESOURCE GUIDE Th
Page 185 and 186:
CHAPTER 7 Integrated Pest Managemen
Page 187 and 188:
CHAPTER 7 Irrigation System Managem
Page 189 and 190:
CHAPTER 7 Private Applicator Pestic
Page 191 and 192:
CHAPTER 8 GLOSSARY Absorption - The
Page 193 and 194:
CHAPTER 8 Leaching Ratio - The perc
show all

Em4885 irrigation management practices to protect ground water

Create successful ePaper yourself

Delete template?

Save as template?