The nitrogen fertilization depends on the demands of the individual types of vegetables.
If the demand is higher, the nitrogen is not given all at once, but in several gifts, d.h. as start fertilization and during vegetation as top fertilization. As a rule, all types of vegetables are given shortly before or after sowing or. Planting a starting fertilization in the amount of 5 g N/m². Larger amounts are useless and cannot be utilized by the plants. The remaining amount is administered as a top dressing in several individual doses, where also here the individual donation does not over 5 g N/m². The fertilizer is spread dry between or around the plants and chopped in. It is cheap, to water after fertilizing, whereby the fertilizer is partially dissolved and brought more quickly to the root area of the plants. For whom the effort does not seem too high, who should divide the top dressing even further and use them as 0,2 administer up to 0.3% nutrient solution. Care must be taken when watering, that the plants are wetted as little as possible, to avoid leaf damage. To be on the safe side, they are then showered with clear water. For types of fertilizer with a high N content, with. B. Harnstoff, the quantity must be dosed very precisely, to avoid growth disorders. In general, you should get used to it, Measure the amount of fertilizer according to the area to be supplied, whereby the different specific gravity of the fertilizers must be taken into account.