Em4885 irrigation management practices to protect ground water

Section 3- Apply Fertilizer Properly (Note Applicable WAC Requirements) . . 4-73
IP 3.03.01 - Calibrate application equipment including manure spreaders
to apply the proper and known amount . . . . . 4-73
IP 3.03.02 - Use the appropriate application technique (chemigation,
broadcast, banding, foliar) for the particular situation . . . 4-74
IP 3.03.03 - Schedule fertilizer applications to avoid periods of irrigation
for leaching for salt control, plant cooling, or frost control . . . 4-74
IP 3.03.04 - Avoid wind drift during applications . . . . 4-74
IP 3.03.05 - Incorporate surface-applied fertilizers immediately to reduce
any volatilization . . . . . . . 4-75
IP 3.03.06 - Use nitrification inhibitors in combination with
applications of ammoniacal forms . . . . . . 4-75
IP 3.03.07 - Ensure uniformity of application with manure . . . 4-76
IP 3.03.08 - Do not apply manure to frozen ground, especially
sloping fields . . . . . . . . 4-76
IP 3.03.09 - Analyze irrigation water for compatibility with any fertilizer
to be applied via fertigation . . . . . . 4-76
IP 3.03.10 - Use fertigation properly and according to regulations . . 4-77
Overall Management Objective 4.00 - Manage crop protection program so as to minimize
chemical residues available for transport . . . . . . 4-80
Explanation and Purpose . . . . . . . 4-80
Section 1- Overall Good Practices
IP 4.01.01 - Assess the risk of contamination of ground and surface waters
due to chemical leaching and runoff . . . . . 4-81
IP 4.01.02 - Practice Integrated Pest Management techniques
where applicable . . . . . . . 4-82
IP 4.01.03 - Schedule applications for maximum effectiveness . . . 4-83
IP 4.01.04 - Maintain records of all chemicals bought and applied as well
as scouts and individual applications (dates, material, method,
crop, results) . . . . . . . . 4-83
IP 4.01.05 - Read and follow all label instructions . . . . 4-83
IP 4.01.06 - Transport and store chemicals properly . . . . 4-84
IP 4.01.07 - Mix and load pesticides properly . . . . 4-85
IP 4.01.08 - Store and dispose of used containers properly . . . 4-85
IP 4.01.09 - Maintain equipment properly to reduce spills or leaks and
clean properly after use . . . . . . . 4-86
IP 4.01.10 - Clean equipment properly after use . . . . 4-86
IP 4.01.11 - Consider conservation tillage methods to reduce erosion . . 4-87
Section 2- Apply Chemicals Properly (Note Applicable WAC Requirements) . . 4-87
IP 4.02.01 - Calibrate application equipment . . . . . 4-87
IP 4.02.02 - Use the appropriate application technique (chemigation,
broadcast, air, ground application) . . . . . . 4-88
IP 4.02.03 - Schedule chemical applications to avoid periods of irrigation
for leaching for salt control, plant cooling, or frost control . . . 4-88
IP 4.02.04 - Analyze irrigation water for compatibility with any chemicals
to be applied via chemigation . . . . . . 4-88
IP 4.02.05 - Use chemigation properly and according to regulations . . 4-89
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