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Kennedy%Jenks Consultants <br /> be performed approximately weekly based on the time between soil moisture readings, rainfall <br /> events, and irrigations. The basic calculation procedure is as described above. The adequacy of <br /> soil moisture will be evaluated by comparing actual field soil moisture with the soil water storage <br /> capacity for the site soils. Irrigation with pond water will be scheduled to maintain soil moisture <br /> between 50 percent and 100 percent of capacity (during summer, soil moisture may fall below <br /> this range in some fields). Percolation calculations will also be compiled for each test plot and <br /> each time period between soil moisture measurements. Percolation values will be used with <br /> deep soil sampling results to quantify salt and nitrogen movement below the root zone. It is <br /> likely that the soil water balance will be evaluated more frequently when soil conditions are <br /> close to field capacity. <br /> Crop and soil datasets will be evaluated after pre-planting soil sampling and the last crop <br /> harvest and final soil sampling have been made. Evaluation of crop data consists of totaling <br /> constituent removal. In addition, correlation between canopy cover, soil moisture status, and <br /> constituent removal will be evaluated. The analysis of soil sample results will be based on <br /> changes in constituent concentrations between sampling events. Overall changes as well as the <br /> depth distribution of constituents will be evaluated and correlated with irrigation and crop <br /> management factors. <br /> The entire dataset for the test plots will be used to develop a salt balance and a nitrogen <br /> balance for each plot. This will include loading rates, crop removal of nitrogen and salts, change <br /> in soil storage of constituents, and percolation losses. It is likely that the salt balance will be <br /> more precise than the nitrogen balance. The primary reason for this is that some nitrogen losses <br /> (incorporation into soil organic matter and denitrification) will not be directly measured in this <br /> work. The fate and transport of both nitrogen and salt will be discussed in the assimilative <br /> capacity report. <br /> Results of the first year of test plot data will be compiled and reviewed internally to assist with <br /> the phase 3 design. The second year growing season test may be refined to optimize irrigation <br /> scheduling, crop management practices, sampling methods, and timing practices. Results of the <br /> second year study will be used to refine the phase 3 design. The final report for the assimilative <br /> capacity study will provide all project data and an assessment of the assimilative capacity of the <br /> Woodbridge site for nitrogen and salts. <br /> Crop Uptake and Assimilative Capacity Work Plan, Page 7 <br /> Woodbridge Winery, Acampo, California <br />