Potassium
Iron
There are three main elements of positive interaction. One of these elements is a positive and happy demeanor when greeting someone.
Which of these is not of the three main classes of elements?Read more: Which_of_these_is_not_of_the_three_main_classes_of_elements
The next to the last of the three numbers on a fertilizer bag represents the phosphorus content. The numbers indicate the presence of the three main nutrients within fertilizer. The nutrients are given in alphabetical order: Nitrogen [N], Phosphorus [P], and Potassium [K].
Most probably you mean Potassium (symbol K, kalium(Latin), Kali or potash)
At least two: oxygen and at least one other.
Many different elements and compounds are used in varying proportions as plant fertilizer. The 6 main elements used are: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S) Seven others elements are also used as "micronutrients": boron (B), chlorine (Cl), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), and zinc (Zn). A compound that is commonly used in agriculture as a "high-nitrogen" fertilizer, is ammonium nitrate (NH4NO3).
NPK is the designation of the complete granular fertilizer.Specifically, a complete fertilizer contains nitrogen, phosphorus and potassium as its three main nutrient ingredients. An incomplete fertilizer lacks one or two of the main ingredients. The letters NPK represent the respective symbols for nitrogen, phosphorus, and potassium. The numbers tell the percentage weight of each nutrient, as in 15-15-15.
The chemical formula for ammonia fertilizer is NH3, which represents the compound's one nitrogen atom bonded to three hydrogen atoms.
The three main elements of the contract process are offer, acceptance, and consideration. An offer is a proposal by one party to another demonstrating their willingness to enter into a contract. Acceptance is the agreement by the other party to the terms of the offer. Consideration is the exchange of something of value between the parties, forming the basis of the contract.
One of the main elements of the financial system in the Philippines is financial claims. Other main elements are financial institutions, financial markets, government agencies, and law and policies.
Kakawate [Gliricidia sepium] isn't a fertilizer. Instead, it's an ornamental tree that functions as a natural fertilizer. Specifically, it shares membership with beans and peas in the Fabaceae family. That family is known for its contributions to soil fertility. It does so by nitrogen-fixation, which makes present but inaccessible nitrogen available in the soluble form that plant roots and soil food web critters need for intake.Nitrogen is one of the three main components in the fertilizer that you buy from the store or that you make through composting.