The element which does not enter into permanent organic combination in plant is?

Answer 1

Nitrogen - Nitrogen is an abundant

element on and around Earth-approximately

78 percent of the Earth's

atmosphere is nitrogen gas (N2). As

with all plant nutrients, however, nitrogen

must be in specific forms to be

utilized by plants. Converting N2 into

nitrogen plants can use is called nitrogen

fixation. Most often, nitrogen gas is converted into plant

available nitrogen by using complex chemical processes or

nitrogen-fixing bacteria.

Plants absorb nitrogen in the forms of (NO3

-) or ammonium

(NH4

+) ions which are both water-soluble. Nitrate

ions are absorbed quickly by plant roots, but leach easily.

Ammonium ions are attracted to soil particles and move

slowly through the soil to plant roots. Commercial fertilizers,

both dry and liquid, are available with various combinations

of nitrate and ammonium ions, enabling farmers to manage

their nitrogen application.

Answer 2

The element that does not enter into permanent organic combination in plants is potassium. Potassium is an essential nutrient for plants, but it does not form part of the plant's structural components in the way that elements like carbon, hydrogen, and oxygen do. Instead, potassium plays a critical role in various metabolic processes and helps regulate plant functions.