Application of humic acid, urea and sulfur coated urea on growth characteristics of fenugreek (Trigonella fenum-gracum)

Plant Nutrition is an important factor in the growth and phytochemicals. The use of natural fertilizers can improve yield and herbs. Accordingly, experiment in a completely randomized design with 6 treatments included 3 replications and replications with 3 pots were conducted. Treatments include humic acid 1%, urea and sulphur coated urea 46 kg/h, the same time use humic acid 1% with urea and sulphur coated urea 46 kg/h and the pot without treatment was considered as control. After sterilization pot and add the appropriate culture medium, 5 seeds were planted in each pot and after about 2 weeks treatments with irrigation water every other day and the third was applied 3 times a week and the beginning of the fifth week of sampling and measurement of properties was conducted. Quantitative traits such as plant fresh weight and dry weight, plant height and total chlorophyll content were evaluated. The results showed that the treatment of humic acid 1% with urea and sulphur coated urea have a best result in fresh weight and dry weight, plant height and humic acid have a best result in total chlorophyll content.