Effect of Organic and Biological Fertilization on Some Quantitative and Qualitative Indicators of Some Chili Pepper Varieties


  • Zeyad A. Shakir, Fouad A. Salman


Organic Fertilization, Biological Fertilization, Chili Pepper Varieties


Farmers can adopt clean agriculture strategy to reduce synthetic fertilizer. The study was conducted in the Al-Najaf Agriculture Directorate during the spring season of 2021. The first factor that is studied is three varieties of chili pepper included Local, Barbarian, and Anaheim. The second factor was four fertilizer treatments including control treatment, seaweed extract, bio-fertilizer using A. chroococcum, and the combination of organic and biological fertilizers. Randomized Complete Block Design (RCBD) was used modeling Split-Plot system with three replications.  Duncan Multiples Range Test was adopted to compare the means at the probability level of 0.05. The results showed that the local variety gave the highest number of fruits, while the Barbarian variety recorded the highest fruit weight, total yield, carbohydrates, vitamin C, and capsaicin. Anaheim variety scored a higher percentage of protein than the local variety, but it did not differ significantly from the Barbarian variety. Bio-fertilizer was superior in terms of the number of fruits, while the combination fertilizer of organic fertilizer and bio-fertilizer was superior in the average fruit weight, total yield, carbohydrates, protein, vitamin C and capsaicin