This material contains no urea and is a safe material for surface application. Ammonia Second Choice Ammonium Nitrate Third Choice Nitrogen Solutions Fourth Choice Urea Surface applied nitrogen fertilizers will greatly depress surface soil pH in no-till fields. Proper soil sampling and liming procedures should be followed to ensure effective weed control when using triazine herbicides. Summary Most of the problems associated with no-till fertilizer efficiency can be overcome by good fertilizer management. A top notch soil testing program is necessary in no-tillage systems.
Producers have to realize that stratification of crop nutrients is possible in no-till.
This can lead to lower yields and poor response from herbicides. It is recommended that producers consider injecting anhydrous ammonia or UAN solutions in order to avoid the interaction with surface crop residue. Nitrogen management is probably the key to a successful fertilizer program in no-till systems. Starter fertilizer responses have been shown to be more common in reduced tillage situations. Subsurface banding of starters gets the nutrients down close to the plant root development and helps prevent surface stratification of nutrients.