Effect of Planting Dates and Mineral Fertilization on Growth and Productivity for Hasakah fenugreek model (Trigonella foenum-graecum L.)

Abstract

  An experiment was conducted in the agricultural scientific research center in Qamishly, Al-Hasakah Governorate, during the 2021-2022 planting season, to study the effect of three planting dates (D1: the first of November, D2: mid-November, the first of December) and three levels of mineral fertilization (F1: 0 N, 0 P₂O₅ kg. ha^-1; F2: 40 N, 30 P₂O₅ kg. ha^-1; F3: 80 N, 60 P₂O₅ kg. ha^-1) in some growth and productivity traits for Hasakah fenugreek model. The experiment was placed according to a randomized complete block design (RCBD) in the order of the splintered blocks, with 3 replications. The results showed significant differences between the studied treatments and their interactions, where the least number of days needed until germination (8.07 days) was achieved at the planting date (D1), and the planting date (D2) gave the highest average length of the pod (10.39 cm), while the planting date gave (D3) The highest average plant height (39.78 cm). As for the levels of fertilization, level (F2) achieved the highest average number of pods per plant (20.8 pods. plant^-1) and the number of seeds per pod (14.66 seeds. pod^-1). While for the interaction of the studied treatments, the treatment of planting date (D3) and application of fertilization level (F2) give the highest average number of pods per plant (22.87 pods. Plant^-1), weight of a thousand seeds (11.37 g) and seed yield (1261.25 kg. ha^{- 1}).