The TalkingFields® NManager product range
The basic product for site-specific N fertilization is the TalkingFields® NManager. This provides a once-a-year N distribution map based on satellite data from previous years. This product is suitable for crops that are fertilized only once during the growing season, such as corn and sugar beets. The natural variation of growth potentials within the area is used to distribute the fertilizer application in an optimized way in the area. The maximum permissible amount of fertilizer according to DÜV (Düngeverordnung; fertilization ordinance) is taken into account when creating the product.
Cereal crops are usually fertilized several times within a growing season. TalkingFields® NManager Pro was developed for these significantly more complex crops. For each upcoming fertilizer application, an up-to-date distribution map is delivered a few days before the planned fertilizer application, which precisely maps the current N requirement of the crop. The product takes into account both the current emergence in the field and the expected development of the crop, derived from analyses of satellite data from previous years. This so-called map overlay procedure combines all available information about the crop stand to make the best decision (see also: Maidl et al., Teilflächenspezifische Stickstoffdüngung, Getreidemagazin 3/2012). In this way, site characteristics that influence maturity, and thus yield formation, can be factored in. In addition to the optimized spatial distribution of the fertilizer in the area, an assessment is made as to whether the target yield assumed during fertilizer planning will be achieved in the respective year. If the analysis of the current data shows that the crop will develop significantly better or worse in the respective year, the total fertilizer quantity is adjusted if necessary. The maximum permissible fertilizer quantity according to DÜV is carried along during the entire growing season and, of course, taken into account in every fertilizer requirement calculation.
For the special case of canola, the TalkingFields® product portfolio includes the TalkingFields® NManager Pro Canola solution. As with cereals, both the current development of the crop at the time of fertilizer application and the expected development are taken into account for canola. Satellite data also provide information in winter, so that the current N uptake is taken into account for canola fertilization in spring. A recommendation for the division of the fertilizer application into 2 applications, as well as their weighting, is also provided.
With the TalkingFields NManager products you can therefore for the most diverse cultures:
- plan an optimal nutrient supply for your crops
- optimize the use of fertilizers and thereby
- maximize yields on fertile subplots in an environmentally compatible manner
- while at all times observing the legal requirements according to DÜV.