JE RECHERCHE UN

FERTILISANT

CONTENANT

NUTRIMENT

POUR

CULTURE

Recherche
frontend design element - arrow left
frontend design element - arrow right
  • Zinc (Zn)
    3065.39
    Zn
  • Forme ionique
    Zinc (Zn) ionic formula image
  • Anion/Cation
    Zn2+
  • Zinc (Zn) influance image
    Leaf
  • Zinc (Zn) origin image
    Origine: Volcanic
  • Zinc (Zn) mobility image
    8-10mm around the root

Zinc

(Zn)

Like most trace elements, the problem of zinc is two-fold: detrimental when it is in excess, injurious when it is deficient. Zinc deficit disrupts a good growth of the crops, more generally at the beginning of vegetation and in rather cold and humid conditions. When all the parameters governing its availability are known, it is possible to intervene properly by targeting sensitive crops and soils at risk with the correct form of the zinc fertilizer.
Zn
Plante
Plante
Sol
Sol
Culture
Culture
Origine
Origine
Clés
Clés
METABOLISM:
Like other trace elements, zinc is involved in enzymatic reactions related to carbon fixation (photosynthesis). It is also involved in cell multiplication and in ribosomes, and more specifically in growth mechanisms linked to the auxin-hormone.
ABSORPTION MECHANISMS:
At the first growth stages zinc is absorbed passively proportional to its concentration in the soil solution, at later stages crops control the absorption with some metabolism functions.
INTERACTIONS, SPECIFICITY:
Zinc blocks iron but it is not the case the other way round. Excess phosphorus can block zinc what is also the case vice versa (both directions antagonism). Excess zinc is not common in agricultural soils except in case of abuse of sewage sludge and industrial compost. In this case, iron and phosphorus are less available.
There is a great variability of contents according to the type of soil. Limestone soils are the poorest as well as soils developed from granite. Zinc in the form of sulphides or carbonates passes quite easily into the soil. It has been mined since the Middle Ages and its industrial production continues to grow. Zinc is also considered as an ecotoxic trace element whose accumulation must be seriously controlled.

Tableau de sensibilité

Echelle de sensibilité:
  • nutrient very sensible icon

    Hautement

  • nutrient very fairly icon

    Moyennement

  • nutrient very moderately icon

    Modérément

Zn
Sugar Beet
Durum Wheat
Wheat
Carrot
Cereals (excepted wheat)
Chicory, endive
Cabbage
Oil Seed Rape
Squash, courgette
Fibre flax
Alfalfa
Corn (silage)
Corn (grain)
Melon
Olives
Leek
Canned peas
Protein peas
Potatoes
Grassland
Salad
Soya
Tobacco
Tomatoes
Sunflower

Tableau sensibilités & Symptômes

Zinc deficiency is one of the most common trace element deficiencies and has a high impact on the yield. In general, the most distinct symptoms are signs of chlorosis between the veins.

Application of zinc through fertilization can be done in the form of foliar as well as of soil application. Sulphate salts work well when the plant can take them up immediately. Chelates are more stable and less affected to be transformed into unavailable forms. Our fertilizer formulas support effective assimilation by crops while having also a sustainable effect, in order to strengthen the soil supply throughout the growth period. The application is recommended to be done at the beginning of the growth phase, when the passive absorption is dominating. This is particularly true for flax.
SOIL CONTENT:
EDTA extraction is a good indicator for measuring zinc in soils. We can consider the following minimum thresholds: - In basic soil, the minimum content is 5ppm. - In neutral soil, the minimum content is 4ppm. - In acidic soil, the minimum content is 3ppm .
CLIMATE:
Low temperatures tend to diminish the solubility of zinc in the soil solution, especially at the end of winter on young crops. The luminosity also affects the availability of zinc, whereas low light influence (cloudy and grey) combined with low temperatures greatly increases the availability of zinc.
pH:
Zinc content decreases at high pH (alkaline soil) or after pH elevation (recent liming).