What is the difference between nitrate and ammonium nitrogen fertilizers?

These two kinds of nitrogen fertilizers have their own characteristics, as long as they are properly selected as good fertilizers. Nitrate nitrogen fertilizer has quick effect, but it is easy to be infiltrated or lost with water. Therefore, it is especially suitable for topdressing of dryland crops such as corn and vegetables in early spring, but the amount of irrigation should not be too large, especially in sandy land. Nitrate nitrogen fertilizer should not be applied to paddy fields, because under flooding conditions, nitrate nitrogen will not only be lost with water, but also become gaseous nitrogen. The ammonium nitrogen fertilizer is easily adsorbed by the soil, so the fertilizer effect in paddy field and sandy land and rainy conditions is better than that of nitrate nitrogen fertilizer.

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Collagen

Collagen is the most abundant protein in mammals, accounting for 25% to 30% of the total protein. It is widely present in all tissues from the body surface of lower vertebrates to mammalian bodies. Collagen monomers are long cylindrical proteins with a length of about 280 nm and a diameter of 1.4–1.5 nm. It consists of 3 polypeptide chains that are supercoiled around each other.

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