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Dygert, C.E
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Authors
Dietrick, K.A
Mullen, R.W
Dygert, C.E
Florence, D.C
Mullen, R.W
Dayton, E
Henry, D.C
Dygert, C.E
Topics
Type
Oral
Year
2009
2011
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1. Mitigating Phosphorus Movement from Agricultural Fields

Agriculture is often cited as the primary factor for the high P loads polluting Lake Erie and Ohio�۪s watersheds, but the contributions of agriculture as a system, a combination of tillage, best management practice (BMP) and fertilizer source rather than an industry is unknown. This study supplied either commercial fertilizer or poultry litter to tilled or no-till production systems with their corresponding BMPs of incorporation and cover crops, respectively, to determine the P lost via surface...

2. Impact of Phosphorus and Potassium Fertilization on Corn and Soybean Productivity and Soil Nutrient Levels

A common production practice in the Eastern Corn Belt is to supply enough phosphorus (P) and potassium (K) in the fall prior to corn planting to satisfy the nutrient needs of both corn and soybeans in a rotation. This practice is most likely a viavle option for fields with more than adequate soil nutrient levels, but on marginal fields this practice may be limiting production (specifically with regard to K). Two field experiements were estabished to evauate the impact of P and K fertilization... K.A. Dietrick, R.W. Mullen, C.E. Dygert

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