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IRINA_888
2 months ago
7

To efficiently provide the ideal amount of nitrogen fertilizer, some farmers make use of a "chlorophyll meter" that measures the

amount of green light reflected off a leaf. Why does this provide an indication of whether the plant may need more or less nitrogen?
Biology
1 answer:
vlada-n [2.5K]2 months ago
8 0

Answer:

Chlorophyll is a green pigment located in chloroplasts within plants. Its role is to capture sunlight for photosynthesis. It acts as a chelate compound. In a chelate compound, a central metal ion bonds with a sizeable organic molecule composed of carbon, hydrogen, and other elements such as nitrogen or oxygen.

In chlorophyll, the central metal ion is magnesium, which is attached to an extensive organic structure known as porphyrin. This porphyrin contains four nitrogen atoms to which magnesium is connected in a square planar configuration. Chlorophyll imparts the green coloration to leaves, thus a greater level of greenness indicates a higher chlorophyll amount and consequently more nitrogen present. As a result, a chlorophyll meter gauges this green light to assess if a plant requires more or less nitrogen.

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