Add _____ to soil to prevent chlorosis in plants.

Add _____ to soil to prevent chlorosis in plants.

• A. Zinc
• B. Nitrogen
• C. Potassium
• D. Phosphorus

Answer: (A)

Chlorosis happens when leaves yellow because there isn’t enough chlorophyll to trap light for photosynthesis. Zinc is a micronutrient essential for chlorophyll synthesis and for certain enzymes that help form chlorophyll. When zinc is lacking, new leaves often show interveinal chlorosis and stunted growth. Adding zinc to the soil supplies what the plant needs to produce chlorophyll, preventing that yellowing pattern. This is especially important in soils where zinc becomes less available, such as high-pH or sandy soils, where zinc fertilizers or chelated zinc are effective. Nitrogen deficiency tends to cause overall yellowing across older leaves and general weakness rather than the targeted chlorosis pattern; potassium deficiency leads to leaf edge burn or scorching; phosphorus deficiency slows growth and affects color and vigor more broadly. So zinc specifically addresses the chlorosis issue by supporting chlorophyll formation.

Chlorosis happens when leaves yellow because there isn’t enough chlorophyll to trap light for photosynthesis. Zinc is a micronutrient essential for chlorophyll synthesis and for certain enzymes that help form chlorophyll. When zinc is lacking, new leaves often show interveinal chlorosis and stunted growth. Adding zinc to the soil supplies what the plant needs to produce chlorophyll, preventing that yellowing pattern. This is especially important in soils where zinc becomes less available, such as high-pH or sandy soils, where zinc fertilizers or chelated zinc are effective.

Nitrogen deficiency tends to cause overall yellowing across older leaves and general weakness rather than the targeted chlorosis pattern; potassium deficiency leads to leaf edge burn or scorching; phosphorus deficiency slows growth and affects color and vigor more broadly. So zinc specifically addresses the chlorosis issue by supporting chlorophyll formation.