• Nutrient Placement

Nutrient Placement

Timing is Everything

All applied N fertilizer sources eventually convert completely to the nitrate-N form. It is in this form that it is taken up by the plant. It is also in this form that nitrate-N is at risk of leaching and denitrification. Fertilizer application timing and the amounts of rainfall influence the rates of both leaching and denitrification.

One strategy to manage the risk of nitrate-N loss is to make fertilizer applications in the spring – just prior to planting (pre-plant) – or sidedress N fertilizer after planting. The main reason that pre-plant and sidedress N applications will be more efficient is that there is a shorter “window” between application and plant needs. The shorter time period means there are fewer opportunities for heavy rainfall events and nitrate-N loss.

Sealers

Anhydrous losses at time of application can be minimized with knife sealers. Great Plains has designed three different sealer attachments designed to seal the knife slot to improve Nitrogen retention.

A Totally New Approach

A new approach to fertilizer application is the three-coulter option with a double row cleaner. This option allows the producer with RTK to pre-apply liquid fertilizer just prior to planting in the spring, do mild vertical tillage in the row, and clear the residue with a row cleaner. The result...precision-placed fertilizer in a clean, warm, fast-emerging seedbed for the planter to precisely plant the seed in relationship to the fertilizer. Because producer requirements and terrain vary, Nutri-Pro® is available in a three coulter system with or without 600-gallon tanks, 2-point lift assist only. (NP30/NP40 A & L - Pulltype, 3-point or 2-point lift assist; NP3000/NP4000 - 2-point lift assist only)