Response of Pot Marigold to Different Applied Levels of Humic Acid

Abstract

A research study was conducted to determine the effects of different dozes of humic acid on growth and yield of marigold at Horticulture Nursery University of Haripur, Khyber Pakhtunkhwa, during spring season. The experiment was laid under Completely Randomized Design with 05 replications and 08 pots pre replications were used. The treatments of humic acids were (T1= control, T2= 250, T3= 750, T4= 1000 ml/L respectively). Significant differences were found in treated flowers. The higher values were noted in leaf length, number of flowers plants, flower width, and flower length. The higher values of leaf length (7.4 cm), number of flowers plant (2.9), flowers width (9.92 cm) and flowers length (20.18 cm) were found by the application of 750 mg of humic acid. However the maximum number of flowers per plant was (5), flower width (1.48 cm) and flower length (3.28 cm) were found with the application of 1000 mg humic acid.