In growing a healthy crop there needs to be a balance between the micro and macronutrients. You cannot depend on a single nutrient to increase the potential of your crop’s yield. Until now, Zinc was not prioritized but farmers are getting aware of its significance.
Zinc is needed in small amounts but is crucial for structural integrity. It directly contributes to gene expression and protein synthesis. Proteins need zinc for catalytic functions. If there is a Zn deficiency in the soil it can get treated with zinc sulfate monohydrate or other zinc-containing fertilizers. The treatment Zn rate will depend on the plant and soil analysis.
Why are plant and soil analysis important?
The plant and soil analysis will help to identify the status of Zn. In highly vulnerable soil areas, farmers experiencing poor yields without disease or droughts need to get the soil tested for Zn deficiency. In the same way, crops can reveal visible symptoms but the major concern is of plants with hidden Zn deficit. The yield is reduced up to 40%. It is therefore crucial to monitor the status of Zn in crops regularly.
Visible symptoms of Zn deficiency in plants & soil
- Leaf chlorosis – The color of the leaf changes from green to yellow or pale green because of the reduced chlorophyll level of chlorophyll oxidation.
- Necrotic spots – It occurs on the leaves in the midrib area because plant tissue dies.
- Leaf bronzing – Reddish-brown spots develop on the leaves, especially in rice crops.
- Leaves resetting – When the dicotyledonous plant cannot elongate normally, leaves cluster instead of spreading out like a healthy plant. It is common in fruit trees.
- Plant stunting – It is the result of diminished stem stretching.
- Malformed leaves – Leaves are narrow and their edges are wavy and not straight.
- Dwarf leaves – They are also termed as ‘little leaf’.
Zinc deficiency causes
Soil conditions are the culprits. Alkaline soil, high pH soils, sandy soils, eroded soils, high organic matter soil, low organic matter soil are responsible for Zn deficiency.
Plant conditions also impact Zn availability. A cold and wet environment after plants emerge can hamper the release of Zn. Low temperature reduces the microbial activity, thus developing plants cannot get sufficient Zn. Farms with lots of pH make it hard for Zn to reach the roots. Both pH and Zn work well when their levels are well-balanced. Applying abundant fertilizer to the crops can badly impact the Zn level in the soil.
Several ways to detect Zn deficiency include soil testing, visual symptoms, and tissue testing. Soil testing reveals only Zn level in soil but not plants. Visual symptoms in some crops are easy to diagnose Zn deficit. However, plant tissue analysis helps to detect the nutrients that are lacking.
Zinc sources include natural organic complexes, inorganic compounds, and synthetic chelates. The zinc sources available from Bisley Groups are chemically modified and purified to create a bioavailable compound for your crops. Zinc fertilizer purchased from reputable producer ensures that contains appropriate Zinc level, as stated and no harmful contaminants.