What is the critical limit of macro and micro-nutrient content in plants
The critical limits of macro and micronutrient content in plants vary depending on the specific nutrient and plant species. Generally, for macronutrients like nitrogen, phosphorus, and potassium, levels range from 2-5% of the plant's dry weight. Micronutrients such as iron, zinc, and copper are typically measured in parts per million (ppm), with critical levels varying between a few ppm to several hundred ppm. These critical limits are essential for maintaining plant health and productivity, influencing factors such as growth, yield, and resistance to stress. Soil testing and plant tissue analysis are crucial tools for assessing nutrient status and making informed fertilization decisions.
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