Effect of of Humic Acid Spraying at Different Flowering Stages on Seed Yield and Its Components of Berseem (Trifolium alexandrinum L.)
This experiment was conducted in an agricultural field in the Musayib district, located 37 km from the city center of Babil Governorate, Iraq, during the period from mid-October 2024 to mid-June 2025, in order to study the effect of humic acid concentrations (0, 2, 4, 6 g L1-) and three spraying stages: (10% of flower...