Effects of Potassium Deficiency on the Growth of Tea (Camelia sinensis) and Strategies for Optimizing Potassium Levels in Soil: A Critical Review

Potassium is among the three essential macronutrients for tea plants, along with nitrogen and phosphorous, plays important roles in growth stress response. absorbed by plants larger amounts than any other mineral element except and, some cases, calcium. At present, more 59% of China’s gardens are a state potassium deficiency, which negatively affects quality yield. This paper reviews effects deficiency on plant response, details factors affecting supply demand gardens, examines interactions between elements soils, provides strategies optimizing levels soils. positively correlated nitrogen, copper, zinc. Sufficient dramatically improves yield tea: it accelerates metabolism, promotes synthesis catechins, strengthens biotic abiotic resistance activating regulating different enzymes. Moderate application fertilizers, potassium-solubilizing bacteria, can regulate ratio forms increase available soils gardens. We suggest that research occurring its interaction be strengthened, so as to improve efficient use fertilizers maintain balance