Plant trace elements such are iron (Fe), zinc (Zn), copper (Cu), boron (B), manganese (Mn), molybdenum (Mo), nickel (Ni), chlorine (Cl) and cobalt (Co). ..). Although they are abundant in the soil, plants usually acquire them in relatively small quantities, though they have a major role in plant growth and development. Micronutrients help the plant in some important vital processes such as:
- Intervene in the processes of building and demolition inside the plant (photosynthesis).
- Improve the absorption of macro nutrients such as: nitrogen, phosphorus and potassium.
- Stimulate flowering, setting and fruit quality.
- Improve plant condition in general.
- Reduce the appearance of some diseases such as dwarfism and the death of developing peaks.
These micronutrients play a prominent role in plant growth. However, the deficiency of micronutrients may cause many diseases in plants, and can reduce the quality and quantity of food.
Symptoms of micronutrient deficiency
- Iron deficiency: yellowing of the leaves, death of the newly developed leaves and turning white, with no damage to the leaf veins of the plant. This leads to poor production in general.
- Zinc deficiency: dwarfing occurs in some plants, and its deficiency is evident in lemon, orange and most citrus trees. Being one of the non-moving elements inside the plant. Where the new leaves appear in a light green color, then the light green color gradually turns to yellow.
- Copper deficiency: flowers fall, fruits are generally lacking, a pale yellow color appears on the leaves. Citrus fruits are affected by a deficiency of copper, which leads to a lack of liquid in citrus fruits.
- Boron deficiency: Weakness and lack of pollen grains, which leads to a lack of knots and fruiting. Delayed growth of the growing tops in the plants. Weakness of the roots of the trees.
- Manganese deficiency: the appearance of gray color in the middle of the leaves, such as tomato plants and apples. This leads to the falling leaves of the plant and dwarfing the plant in general.
- Cobalt deficiency: inhibiting the growth of root nodes, weakening and stunting them
- Nickel deficiency: a weakness in the quality of seeds in the grain crop and all crops whose seeds we need, such as onions and others.
Inadequate or low intake of these elements to plants leads to limited crop yields worldwide. Also, these micronutrients are toxic when used in high concentrations and this level of toxicity endangers plant growth.
It is preferable to spray microelements in the form of chelates, for example yara vita tracel Bz, which contains 5% magnesium, 4.5% sulfur, 5% boron, 5% zinc, in addition to molybdenum, copper, iron and manganese twice per crop or as needed. Once in the early stages and once in the advance stage. This way, the fertilizer works as a stimulant for the plant at young age of growth and later on during flowering and fruit set
Dosage is set according to growth stage, area, product type and concentration.
PS: Cereal crops improve after spraying micronutrients such as fava beans, wheat, barley, maize and sorghum.