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Does coffee grounds contain boron

Ground facts: Coffee grounds contain approximately 2 percent nitrogen, 0.06 percent phosphorus, and 0.6 percent potassium by volume. They contain many micronutrients, including calcium, magnesium, Boron, copper, iron, and zinc. In the field, boron deficiency typically causes a superficial pinhead-sized discoloration just under the carrot's skin. The grayish, irregularly shaped areas are ordinarily only seen after steam peeling the carrots and are usually removed by normal domestic peeling. Brown necrotic areas are found in the flesh of the root, particularly near the cambium around the periphery of the root when sweet potato is Boron deficient. The flesh and roots are misshapen, and the skin is rough and leathery in texture. The characteristic symptom of cabbage boron deficiency found in the field is the breakdown of the pith of the stem—easily seen when the head is split vertically. Water-soaked spots first develop in the pith, the tissue gradually becomes necrotic, and sometimes a cavity may form. Boron deficiency in onions causes leaves to turn blue/green, and the younger leaves become mottled with distorted, bony areas. Cracks may appear on the upper surface of the lower leaves, which become stiff and brittle. Root development is poor. A boron deficiency may impair over-wintering. According to Green Facts, however, there is only 7.2 mg of Boron per kilogram of honey. This would mean that for 3 mg of Boron, the lowest active daily dose, you would need about half a kilogram of honey, which is more than this entire jar. If you are looking for high quality, high purity and cost-effective zinc sulfide, or if you require the latest price of zinc sulfide, please feel free to email contact mis-asia.

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