Our New Organic Fertilizer “Crab Shell” In a research carried out at NKU, it was concluded that increasing the use of crab shell as organic fertilizer will provide benefits to the soil. Dr. Adiloğlu: “Worldwide, large quantities of crab shells are thrown into the environment by seafood producer companies without being evaluated”- “Crab shell is recommended as a new organic fertilizer to increase the productivity of acid soils and for plant nutrition in such soils”
In a study conducted at Namık Kemal University (NKU), it was reported that the increasing use of crab shells as organic fertilizer has positive effects on the macro and micro element content, especially on some chemical properties of acid soils.
Professor of Soil Science and Plant Nutrition, Faculty of Agriculture, NKU. Dr. Aydın Adiloğlu told Anadolu Agency (AA) that he examined the usability of crab shell, which is among the seafood products, as an organic fertilizer in two studies.
Stating that the negative effects of chemicals (pharmaceuticals, fertilizers) used in agricultural production and their harms on human and public health have started to manifest themselves increasingly, Adiloğlu emphasized that ecological agriculture practices have increased in recent years to avoid the use of chemical fertilizers and agricultural pesticides or to reduce them as much as possible. .
Adiloğlu stated that the use of crab shell as an organic fertilizer affects the correction of pH (the unit of measurement that describes the acidity or alkalinity of a solution), the dry weight of the plant and the microelement intake, especially in acid soils, and continued as follows:
“Worldwide, large quantities of crab shells are thrown into the environment without reuse by seafood manufacturing companies. Especially in recent years, with the re-evaluation of wastes on the agenda, shellfish products are re-evaluated by chemical or biological methods instead of being left to rot, and new organic fertilizers are obtained. Fertilization in organic agriculture is important both to ensure the sustainability of soil fertility and to meet plant nutrient needs. Within the scope of our study, the positive effects of using crab shells as organic fertilizers, especially some chemical properties of acid soils, on macro and micro element content have been determined.
Increase in iron, copper, zinc and manganese contents
Adiloğlu pointed out that the crab shell applied to acid soils in increasing amounts increases the dry matter content of the corn plant and the nitrogen, phosphorus, calcium and magnesium content.
Adiloğlu stated that the potassium content of the corn plant decreased with the application of crab shell fertilizer and an increase was observed in the iron, copper, zinc and manganese contents. This is important for acid soils. Phosphorus deficiency, iron, copper, zinc, manganese toxicities and inhibition of nitrogen mineralization are common in acid soils. Crab shell is recommended as a new organic fertilizer for increasing the productivity of acid soils and for plant nutrition in such soils.
Stating that in the second leg of the study, which was published in important scientific journals published abroad, it was investigated that crab shell fertilizer could be an alternative to reclamation of acid soil with lime material, Adiloğlu explained that it was revealed that crab shells containing high calcium could be used in the improvement of acid soils.
Aydın Adiloğlu added that the findings of these two studies are important in terms of being an alternative to chemical fertilizers, which have an important place in the decrease of soil fertility as a result of uncontrolled use.
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