Model based nitrate TMDLs for two agricultural watersheds of southeastern Minnesota

Agriculture & Biology

• total maximum daily load 100%
• agricultural watersheds 80%
• nitrates 40%
• sand 17%
• crops 11%
• subsurface drainage 10%
• agricultural management 8%
• application timing 8%
• tiles 8%
• water quality 6%
• fertilizer application 6%
• pastures 5%
• fertilizers 5%
• nitrogen 4%

Earth & Environmental Sciences

• watershed 35%
• nitrate 35%
• creek 24%
• loss 18%
• crop 15%
• sand 12%
• land 11%
• agricultural management 8%
• fertilizer application 8%
• pasture 6%
• management practice 6%
• fertilizer 6%
• drainage 5%
• water quality 4%
• nitrogen 4%
• trend 3%
• comparison 2%
• rate 2%