Effect of Different Doses of Phosgreen Fertilization on Chlorophyll, K, and Ca Content in Butterhead Lettuce (Lactuca sativa L.) Grown in Peat Substrate

Struvite is regarded as a promising phosphorus (P) fertilizer compared to commercial pristine mineral fertilizers. The aim of this study was determine the effect Phosgreen fertilizer, with struvite its source, on chlorophyll, potassium (K), and calcium (Ca) contents in lettuce grown peat superphosphate. carried out pot experiment different doses P fertilization. presents chlorophyll a, b, total (a + b) carotenoid plants. Significant differences b were observed between applications, can have direct impact crop yields. Significantly higher both under fertilization well content *. results indicate dependence vitamin C but no significant increase fertilization; K Ca not significantly dependent type fertilizer. Due favorable composition Phosgreen, it may be recommended for use agriculture horticulture sectors.