Which compounds contain nitrogen and oxygen and are important for plant growth?

Nitrates are important compounds for plant growth because they provide a readily available source of nitrogen, which is an essential nutrient for plants. Nitrogen is a critical component of amino acids, proteins, and nucleic acids, all of which are vital for plant development and functioning.

In the soil, nitrates can be taken up by plant roots and are used to synthesize key biomolecules that contribute to growth and energy production. The presence of nitrogen in the nitrate form is particularly advantageous for plants as it supports processes such as photosynthesis and overall metabolic activity.

Other compounds, such as nitrites, represent an intermediate stage in the nitrogen cycle but are not as readily utilized by plants as nitrates. Phosphates and sulfates, while important, do not contain nitrogen and thus serve different roles in plant nutrition and growth. Phosphates primarily contribute to energy transfer and genetic material, while sulfates are necessary for certain amino acids and enzyme functions. However, neither directly provides the nitrogen that is crucial for the growth-promoting aspects that nitrates do.