Select the incorrect match: Element Absorbable form (a) Nitrogen -NO3^-, NO2^-, NH4^+, (b) Sulph

step 1 Here in this question, we are going to find the incorrect match in which the element is given an

Select the incorrect match: Element Absorbable form (a)...

Select the incorrect match:
Element Absorbable form (a) Nitrogen $-\mathrm{NO}_{3}^{-}, \mathrm{NO}_{2}^{-}, \mathrm{NH}_{4}^{+}$,
(b) Sulphur $\mathrm{S}^{2-}$
(c) Iron $\mathrm{Fe}^{3+}$
(d) Boron $-\quad \mathrm{BO}_{3}^{3-}, \mathrm{B}_{4} \mathrm{O}_{7}^{2-}$

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Key Concepts

Ionic Speciation in Plant Nutrition

Ionic speciation refers to the different chemical forms an element can take in solution, which significantly influences its bioavailability to plants. Nutrients are usually absorbed in specific ionic forms, such as nitrates, ammonium, or sulfate, and understanding these forms is essential for evaluating nutrient uptake and proper plant nutrition.

Oxidation States and Elemental Chemistry

An element’s oxidation state is crucial in determining its chemical behavior, solubility, and interaction with other compounds in the soil. This concept helps in understanding why only particular oxidation states are bioavailable to plants and why incorrect oxidation states can lead to nutrient deficiencies or toxicities.

Soil Chemistry and Nutrient Availability

Soil chemistry governs the transformation of elements between different ionic forms and oxidation states, influencing the overall nutrient availability to plants. Factors like pH, redox potential, and microbial activity play essential roles in determining which form of an element is present in the soil, ensuring that nutrients are available in the most appropriate form for uptake.

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