Effect of Adding Sheep Manure and Organic Extracts on Fenugreek (Trigonella foenum-graecum L.) Growth and Yield

Abstract

Abstract A field experiment was conducted in one of the agricultural fields of the College of Agriculture, University of Anbar, in a sandy loam soil to cultivate fenugreek plants according to a randomized complete block design with three blocks to study the effect of adding sheep manure before planting at three levels (without addition (A0 0 µg.ha−1), A1 6 µg ha−1, A2 8 µg.ha−1). The treatments were also sprayed with commercial organic acids at concentrations of (0.5, 1, and 1.5) ml.L−1, were denoted as G1, G2, and G3, respectively. The treatments were also sprayed with manufactured organic acids at concentrations of (0.5, 1, and 1.5 ml L−1) and were denoted as M1, M2, and M3, respectively. In addition, there was a treatment of spraying with distilled water only (C). The results showed that the second level of sheep manure (A2) was superior with the highest rate for all growth and yield traits. The manufactured organic acids were superior with the highest rate of plant height, number of branches plant−1, number of pods plant−1, and number of seeds.pod−1. While the treatment of spraying with both industrial (M3) and commercial (G3) organic acids outperformed with the same rate for the weight of 100 seeds (1.7gm). The treatment of spraying with commercial organic acids (G2) was superior with the highest yield of 1.002 µg.ha−1, but it did not differ significantly from manufactured organic acids. The best interaction in giving the highest yield of fenugreek seeds in treatment A2G2 was 2.142 µg.ha-1compared to control treatment A0C when the yield of fenugreek seeds was 0.022 µg.ha−1.