Comparison of Asn and Urea on Yield, Quality and Nitrogen Use Efficiency of Russet Burbank and Norkotah Potatoes.

Potatoes have very high nutrient demands; tuber yield, quality, and quantity are directly impacted by the quantity and timing of application of nutrients. The study and research being conducted is looking at the application of two different types and applications of fertilizers on two different varieties of potatoes. We have planted Russet Burbank potatoes and Russet Norkotah potatoes. ASN 26 is a new, dry granular ammonium sulfate nitrate fertilizer made from a patented Honeywell process that chemically fuses ammonium sulfate and ammonium nitrate to produce a stable molecule. Because of this stable fusion, ASN 26 is compatible with other fertilizers and is safe to transport, handle and store. On both varieties of potatoes we are applying ASN (Ammonium Sulfate Nitrogen) fertilizer and UREA fertilizer at different rates, and these application rates will be replicated 4 times so we can ensure that our data is consistent and accurate. The application rates will go as follows:

• Treatment 1 - No application
• Treatment 2 - ASN 70 lbs. N
• Treatment 3 - ASN 140 lbs. N
• Treatment 4 - ASN 210 lbs. N
• Treatment 5 - No application
• Treatments 6 - UREA 70 lbs. N
• Treatment 7 - UREA 140 lbs. N
• Treatment 8 - UREA 210 lbs. N

We will harvest the potatoes and gather the data that relates to tuber size, quality, and yield.