Barbara De Lucia

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1. Introduction Nutrition is the main vehicle that maximizes crop production [1] and mineral fertilizers are fundamental for crop nutrition [2,3]. In conventional agriculture, chemical fertilizers are always applied to exceed the recommended dose, so they have become a potential source of environmental pollution [4,5,6,7]. Fertilizer overuse has, therefore, introduced key problems such as soil infertility [8], climate change [9,10], environmental degradation [11], and N and P runoff [12,13].

3. Results Table 1 shows the percentage values of callus, rooted and unrooted cuttings at 70 DAC. A higher percentage of callused cuttings was observed with both seaweed extracts (K and G) at different concentrations compared to the IBA—Rhizopon treatment (R1) and the control. The percentage of callused cuttings was 84.3% on average in both the seaweed extracts, greater than 1.3 and 1.4 times compared to the control and the R treatment.