Early and Total Yield Enhancement of the Globe Artichoke Using an Ecofriendly Seaweed Extract-Based Biostimulant and PK Fertilizer

This study evaluated the effect of phosphorus and potassium (PK) fertilizer levels foliar seaweed extract on early total yield productivity growth globe artichoke plants. Field experiments were conducted over two seasons loamy–clay soil at vegetable research farm, Faculty Agriculture, Alexandria University, Egypt. Fertilizer 0, 25, 50 75 mL L−1, concentrations 5 10 mg individually in combination, used. Globe plants treated with PK liquid fertilizer, without extract, showed critical increases (plant height number leaves per plant as well foliage dry weight), yield, some chemical constituents compared to untreated The PK3 level L−1 a spray greater effects than other combinations.