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Calcium and magnesium are essential elements for plant developmen and overall vitality, and nothing delivers these elements better than Peak Harvest Essential Gold. This natural and easy to use liquid nutrient supplement contains high amounts of calcium and magnesium in chelated form ready to be absorbed by your plants! Calcium is essential for vigorous plant growth and rigid structural development, while magnesium is essential for chlorophyll formation and phosphorus uptake and migration. Experience these benefits and increase your yield when you use Essential Gold!