Alaa Al-Hafee*(1), Ghiath A. Alloush(2), and Saleh Qoubailie(3)
(1). Directorate of Rural Development, Lattakia, Syria.
(2). Department of Soil and Water Sciences, Faculty of Agriculture, Lattakia, Syria.
(3). Department of Agronomy, Faculty of Agriculture, Lattakia, Syria.
(*Corresponding Author: Alaa Al-Hafee, alaaafee@gmail.com).
Received: 14/03/2022 Accepted: 21/04/2022
Abstract:
A filed experiment was conducted using a complete randomized block design at Jableh-Bustan saleh seasons 2018-2019. The aim was to evaluate the effect of increasing application rates of nitrogen fertilizer as urea (46% N) (N: 0, 100, 200, 300 and 400 kg N/ha) and potassium humate (H: 0, 2.5, 5, and 10 kg H/ha) on growth components and N uptake of bread wheat (triticum aestivum sp. Sham 10). The number of tillers and distribution between fertile and non-fertile, main and tiller stems height, spike length, and straw yield were recorded. N concentration in straw was determined, and N uptake was calculated. The results of statistical analysis showed a significant effect of nitrogen application on number of tellers, plant height, and spike length. The production of hay was increased from 3.73 ton/ha in the control (N0) to 14.77, 20.46, and 25 ton/ha with increased N application from 100, 200, 300 kg N/ha respectively. There was no increase in hay production with application of 400 kg N/ha. The application of humate alone (2.5, 5, and 10 kg/ha) led to a gradual increase in hay yield (from 3.73 in H0 treatment to 7.33, 8.5, and 10.66 ton/ha, respectively), and N removal (from 31 to 78, 95, and 125 kg N/ha, respectively). The results also showed an improvement of N treatment up to 300 kg N/ha with 2.5 kg H/ha over those treatments with N application alone in growth parameters, hay yield, and N removal by hay. Increasing application of humate to 5 and 10 kg/ha didn’t show any significant effects on growth parameters or hay yield.
Key Words: Soft wheat, Sham 10, Nitrogen fertilizer, Humate, Growth Trait, N uptake.
Full paper in Arabic: pdf