The article discusses how to identify and manage nutrient disorders in oil palm trees. Researchers used field monitoring and surveys to track symptoms of nutrient deficiencies. They found that nitrogen, phosphorus, potassium, magnesium, boron, copper, iron, and sulfur deficiencies can affect oil palm health. They also identified disorders like white stripe and abnormalities caused by genetics, pests, diseases, and drought. Reference tables provide information on soil fertility, leaf levels, and nutrient sources for oil palms. A diagnostic key helps identify nutrient deficiencies in oil palm and legume cover plants. Field management techniques include leaf sampling, marking palms, and addressing issues like drought, weeds, and pests.