The effect of the number of mowings and the addition of humic and fulvic acid on the growth and fodder yield of alfalfa variety (Masqawi)

Abstract

The field experiment was done in Al-Muthanna Governorate. The experiment examined how mowing frequency and humic and fulvic acid affected Masqawi lucerne growth and yield in 2022–2023. Three replicates of the split plot design, namely the randomized complete block design (RCBD), were used.. The experiment had four humic and fulvic acid concentrations: A0, A1, A2, and A3, representing 0, 20, 40, and 60 L ha-1 . There were also four mowings, C0, C1, C2, and C3, representing control, one, two, and three mowings, respectively. The statistical analysis yielded substantial disparities in both acidity levels and fulvic acid concentrations. A3 shown superiority in relation to the wet and dry weight of the cuttings, with values of 12.182 and 2.377 tons ha-1 , respectively. Additionally, A3 had a higher percentage of total protein, measuring at 15.746%. In relation to the quantity of mowings, it is noteworthy that the third mowings, denoted as C3, shown superior performance in terms of the cumulative weight of the mowings, yielding a value of 20.682 tons ha-1. Additionally, C3 exhibited a notable proportion of total protein, measuring at 12.725%.