Profile: Earthcrew, Inc. specializes in providing chemical fertilizers and pesticides. NPK, or nitrogen, phosphorus, and potassium, are vital elements for plant growth. It is available in 30 and 55 gallon drums and 275 gallon totes. Sea kelp extract, also known as seaweed extract or seaweed fertilizer, has gained popularity in agriculture and gardening due to its potential benefits for plant growth and development. It is derived from various types of seaweeds and is often used as a natural, organic supplement to traditional fertilizers.