Enter basic data in the Farm Data tab
- Farm Data > Farms
- Click New to select a new farm.
- Click on a weather station to select the long-term soil temperature.
Soil temperatures are needed to estimate N mineralization from soil organic matter, from organic fertilizers and from crop residues.
The list of weather stations can be sorted by clicking on the column headers.
- Farm Data > Fields
- Click New to add a new field.
- Farm Data > Crops
- The N-Expert database contains many crops. Therefore, it is recommended to choose which crops are cultivated in a farm. The subsequent entry of crops is greatly simplified by the short list of in-house crops.
- Click Filter to select the crop type (vegetable, arable, green manure)
- In-house crops can be added to the left list by clicking and dragging, or by clicking on crops in the left list and clicking Add . Multiple selection with ctrl key + click is possible.
- Farm Data > Nmin estimates
- If no Nmin analysis results have been entered, N-Expert estimates the Nmin values.
The starting values for the estimation will be the Nmin values entered here. These starting values must be generated for each new calendar year.
- Click New to create the default starting values for a calendar year.
The default values can be overwritten for each calendar year by empirical values typical for the farm or values of representative reference areas.
- Farm Data > Soil temperatures
- Soil temperatures are needed to estimate N mineralization from soil organic matter (humus) and N mineralization from organic fertilizers.
Soil temperatures must be generated for each new calendar year.
- Click New to generate the default soil temperatures for a calendar year. The standard soil temperatures are the long-term averages of the weather station selected when the farm was entered in the data base. The default values can be overridden by current measurements for each calendar year.
- Farm Data > Mineral fertilizer
- The N-Expert database contains a lot of mineral fertilizers. Therefore, it is recommended to choose which fertilizer to use in a farm. The subsequent entry of fertilization measures is greatly simplified by the short list of in-house fertilizers.
In-house fertilizers can be added to the left list by clicking and dragging, or by clicking on a fertilizer in the left list and clicking Add . Multiple selection with ctrl key + click is possible.
- Click New to create a new fertilizer that is not already in the fertilizer list.
- Farm Data > Organic fertilizer
- The N-Expert database contains a lot of organic fertilizer. Therefore, it is recommended to choose which fertilizer to use in a farm. The subsequent entry of fertilizer measures is greatly simplified by the short list of in-house fertilizers.
- In-house fertilizer can be added to the left list by clicking and dragging, or by clicking on a fertilizer in the left list and clicking Add . Multiple selection with ctrl key + click is possible.
- Click New to create a new fertilizer that is not already in the fertilizer list.
