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low TABLE 10 HOLDING POND NUTRIENT WATER ANALYSIS KJELDAHL AMMONIUM- NITRATE- TOTAL TOTAL NITROGEN NITROGEN NITROGEN PHOSPHOROUS POTASSIUM (NH,-N) (NO;N) 836.9 mg/L 773.4 mg/L <0.5 mg/L 99.6 mg/L 748.5 mg/L 189.6 lb/acre-inch 175.3 lb/acre-inch <0.Ilb/acre-inch722.61b/acre-inch 169.61b/acre-inch From the data presented, the amount of nitrogen that will be applied every hour the pumps in the SEC of the Home Ranch operate (without the addition of Beaver Slough or irrigation well water), is calculated as follows: For Kjeldahl Nitrogen(total of organic and ammonium nitrogen)and Nitrate-Nitrogen= 600 gpm(rhe two SEC pumps deliver approximately 300 gallons per minute each into the concrete-lined irrigation ditch)X 60 min-27,154 gals/ac-in= 1.3 ac-in. x 189.6 lbs N/ac-in (Column 1,above)=252 lbs N-by the field acreage being irrigated. As an example: Field 8 = 17.3 acres. 252 lbs N- 17.3 ac = 14.5 lbs N/acre/hr of irrigation for Field 8. For every hour of pumping, approximately 1.3 ac-in of irrigation water is applied. This nitrogen concentration of 14.5 lbs N/acre/hr is straight holding pond water and does not account for blending with Beaver Slough water. Note: Ammonium and nitrate are the only two forms of nitrogen readily available for assimilation by plants. Consequently, the organic fraction of Kjeldahl Nitrogen must mineralize to ammonium through the ammonification process. Therefore, not all Kjeldahl Nitrogen is available. Y B. de SNAYER DAIRY FACILITY CROPLAND INFORMATION Currently for the Home Ranch, a winter mix is planted in the fall and harvested in the spring. This winter mix consists of 30%barley, 30% oats, 30%vetch and 10% orchardgrass. The converted nitrogen requirements for this mix is as follows: 30% x 160 lbs. N per acre for barley = 48 lbs. N — 30%x 115 lbs. N per acre for oats = 35 lbs. N 30%x 390 lbs. N per acre for vetch = 117 lbs. N 10%x 300 lbs. N per acre for orchardgrass = 30 lbs. N TOTAL N per acre required by winter mix: = 230 lbs. N Under the proposed dairy expansion, cropping patterns at the Home Ranch will increase from double cropping to triple cropping, illustrated as follows: ✓ Winter mix is planted first of November: 230 lbs. N per acre required by winter mix. ✓ Winter mix is harvested in mid April. ✓ Silage corn planted first of May: 250 lbs. N per acre required by silage corn. ✓ Silage Corn is harvested in late August. ✓ Sorghum-sudan planted first of September: 325 lbs N per acre required x 33% due to short �d growing season = 110 lbs N per acre required by sorghum-sudan. ✓ Sorghum-sudan harvested in late October. -19- Chesney Consulting