Calcium uptake is passive; its entry into the plant is mainly linked to water uptake by the roots. Water uptake and circulation in plants are closely related to leaf transpiration.
It is well established that basal and middle leaves transpire more than young leaves and fruit. These leaves therefore absorb the most calcium.
Because it is immobile, once calcium is located and fixed in the oldest tissues, it cannot be redistributed to young leaves, fruit or storage organs. This leads to tip burn on growing points, blossom-end rot on fruit, and brown centre and hollow heart in tubers, which occur during strong growth spurts.
Calcium deficiencies also occur during prolonged heat waves or periods of heavy water accumulation.
Some crops are more sensitive than others to calcium deficiency and require regular preventive foliar calcium applications.
Calcium is involved in building and strengthening plant cell walls.
Fruits and vegetables well supplied with calcium are firmer, less likely to be attacked by diseases and keep much longer.
For all these reasons, regular, well-targeted foliar applications of a calcium foliar fertilizer are crucial to reduce losses and increase crop quality.
Póma is a liquid foliar fertilizer based on calcium acetate, a very small molecule combined with a multifunctional adjuvant:
This adjuvant allows calcium to remain in solution on the leaf longer without being washed off, making it easier for it to penetrate the plant.
Póma is specially designed to prevent and correct nutritional imbalances caused by calcium deficiency or poor calcium uptake.
The calcium in Póma is chelated with acetic acid, which is naturally present in all living organisms; it is therefore non-toxic and, on the contrary, is involved in several of the plant’s metabolic processes.
Póma is a chlorine-free and nitrogen-free solution, which avoids the risk of leaf burn.
Using Póma is a guarantee of effectiveness and safety.
