Calcium plays a key role in the plant's absorption of all other minerals. This actually makes it an indispensable element for any crop. As discussed earlier with granular fertilizers (point 1), the availability of calcium in the soil is closely related to the ratio to other elements such as magnesium, as well as to the form in which calcium is present (e.g., shells, lime, etc.).
In addition to its function as a "locomotive" for mineral absorption, calcium in field vegetable crops is also important for quality, resilience and storability. Especially in cabbage and brocolli, it is therefore valuable to administer a small, directly absorbable amount of calcium at an early stage. Especially when the natural availability in the soil is (still) insufficient.
N-xt Calcium is ideally suited for this purpose: it contains the right balance of calcium and boron (optionally supplemented with silicon), and is directly available to the plant thanks to the unique complexation technique. Because the nutrients are in a stable compound, they do not react undesirably with other elements in the soil.
Absorption in field vegetables takes place in the upper, active root zone. This is why we recommend an application with a 7-hole cap, in the first few weeks after planting. With this application, we also give about 30 kg of slow-release ammonium nitrogen which is very beneficial for outdoor vegetables at this stage.
Advice:
250 liters/ha of N-xt Calcium (N9 Ca B).
- Spray with a 7-hole nozzle on a hardened crop, we want to get the fertilizer on the soil
- Feel free to spray in the rain or just before a rain shower
- CAUTION; if a crop has just been sprayed with contact agents, this greatly weakens a crop
Read more about N-xt Cacium on our product page.