Nutrient imbalances refer to situations when one or more essential plant nutrients are either deficient or available in excess of what plants take up at a given time. The former situation causes plant stunting and reduced yield and quality, while the latter can lead to loss of nutrients from the soil and environmental degradation. The soil may have nutrients in both excess and deficient at the same time, and some nutrients can compete with others for plant uptake and cause deficiencies even when soil levels are sufficient.
Precision Nitrogen Application: Farmer-to-Farmer Case Study Series. Video: Precision Nitrogen Application. 2014.
Vineyard Nutrient Management in Washington State. 2018. Michelle Moyer, Stacy Singer, Joan Davenport, Gwen-Alyn Hoheisel. EM111E
Tree Fruit Soil Fertility and Plant Nutrition in cropping Orchards in Central Washington. 2018. Bernardita Sallato, Tianna DuPont, David Granatstein, WSU Extension.