Course Spotlight. As a marine biology major, youâll most likely take a course in marine ecology. In this class, youâll focus less on the details of individual organisms and more on their relationships with each other and with their habitats.
The different types of chemical fertilizers are usually classified according to the three principal elements, namely Nitrogen (N) , Phosphorous (P) and Potassium (K) , and may, therefore, be included in more than one group. Liquid fertilizers : â these types of fertilizer come in a variety of formulations and even include organic fertilizer, complete fertilizer as well as special purpose fertilizer. 2  Some examples of liquid fertilizer are Nitrosol and African Violet Food.
Fertilizer. an organic or inorganic substance that contains plant nutrients or that activates nutrients present in soil. According to their chemical composition, fertilizers are divided into organic fertilizers and inorganic, or mineral, fertilizers. Organic fertilizers include manure, compost, and green manure.n organic or inorganic substance that contains plant nutrients or that activates nutrients present in soil. According to their chemical composition, fertilizers are divided into organic fertilizers and inorganic, or mineral, fertilizers. Organic fertilizers include manure, compost, and green manure.