Effect of Magnesium Aminochelate and Seaweed (Sargassum angustifolium) on Improving Growth and Quality Characteristics of Greenhouse Cucumber under Magnesium-Reduced Nutrient Solution

This is a scholarly article examining magnesium deficiency in greenhouse vegetable and cucurbit production in southern Iran. It investigates the causes of magnesium shortages, particularly in the middle of the growing season, which are linked to poor irrigation water quality and excessive use of potassium fertilizers during the reproductive phase. The article explores practical solutions aimed at reducing chemical fertilizer use, lowering production costs, and minimizing environmental risks while improving crop yield and quality. Magnesium's role in carbohydrate partitioning and dry matter distribution between roots and shoots is central to the discussion.