Generate a Residual Herbicide Report summarizing pre-emergent atrazine and metribuzin soil levels before corn planting after a high-rainfall winter

Residual Soil Test Results *

Application History Details *

Field Environmental Conditions * Select winter condition pattern Extreme rainfall (>150% normal) with saturated soils >30 days Moderate rainfall (110-150% normal) with periodic freeze-thaw cycles Severe freeze with extended soil frost >45 days minimal rainfall Drought conditions (<50% normal rainfall) with limited soil moisture Normal winter pattern (±20% rainfall) with typical temperature fluctuations Heavy snow cover (>8 inches) with prolonged soil insulation Early warm spring (>5°F above normal) accelerating degradation Late spring freeze after initial warm-up affecting chemical persistence

Soil Characteristics Profile * Choose dominant soil type High clay content (>35%) with elevated CEC >25 meq/100g Sandy loam with low organic matter (<2.5%) and rapid leaching potential Silty clay loam with moderate OM (2.5-4.0%) and moderate drainage Muck/organic soils (>20% OM) with high herbicide binding capacity Shallow soils over fractured bedrock with preferential flow concerns Variable field with multiple soil types requiring zone management Compaction layers present affecting downward herbicide movement Tile-drained soils with enhanced leaching potential

Planting Timeline Constraints * Choose timeline pressure Immediate planting required (<7 days) - emergency management needed Short window (7-14 days) requiring rapid assessment and decisions Standard timeline (2-4 weeks) allowing methodical planning Flexible timeline (>4 weeks) enabling second testing cycle Prevent plant scenario requiring alternative crop selection Replant situation with existing crop considerations Double-crop scenario with extremely tight window Cover crop integration requiring modified timing

Regulatory Compliance Standard * Choose regulatory standard US EPA FIFRA Section 18 emergency exemption requirements Restricted Use Pesticide (RUP) handler certification compliance Certified Crop Adviser (CCA) technical standard protocols NRCS Conservation Plan adherence for environmental compliance State-specific groundwater protection area restrictions Endangered Species Act buffer zone requirements Aquatic buffer zone restrictions (<100m from water bodies) Organic certification transition requirements (>36 months residue-free)

Risk Mitigation Requirements *

Report Audience and Distribution * Choose stakeholder focus Farm owner/operators making independent planting decisions Crop consultant/agronomist providing technical recommendations Lenders requiring documentation for crop insurance or financing Land owners reviewing tenant compliance with lease terms Regulatory agency submission for permit or exemption approval Crop insurance adjusters determining coverage eligibility Buyer/elevator requiring residue documentation for contract compliance Conservation district for conservation compliance verification

Analytical Decision Thresholds * Choose threshold standard Conservative (<0.05 ppm atrazine, <0.1 ppm metribuzin) - maximum crop safety Standard (corn: 0.1 ppm atrazine, 0.2 ppm metribuzin) - industry best practices Moderate risk (0.2 ppm atrazine, 0.4 ppm metribuzin) - experienced grower level Aggressive thresholds (0.5 ppm atrazine, 1.0 ppm metribuzin) - high-risk tolerance Crop-specific: Sweet corn (more sensitive) vs field corn variants Rotation crop safe levels (soybean: <0.01 ppm atrazine, <0.05 metribuzin) Cover crop establishment (clover must have <0.02 ppm atrazine) Zero tolerance under organic transition period requirements

Additional Professional Notes