![Soil Testing Homehyme](https://homehyme.com/wp-content/uploads/2022/11/Soil-Testing-Homehyme.jpg)
There are 20 nutrients that all plants require. Six of the most important nutrients, called macronutrients, are: calcium, magnesium, nitrogen, phosphorous, potassium, and sulfur. Of these, nitrogen, phosphorus, and potassium are essential to…
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