Effect of different levels of nitrogen fertilizer on the growth and productivity of wheat crop, Bohouth 210 (Triticum aestivum L.) under the conditions of the Suluq region
Keywords:
Nitrogen fertilizer, Wheat variety Bohouth 210, Growth and productivity characteristicsAbstract
A field experiment was conducted during the 2023-2024 season at the Agricultural Research Station, Faculty of Agriculture (Suluq), University of Benghazi. To study the effect of different levels of nitrogen fertilizer on the growth and productivity of bread wheat variety 210, which are (50-100-150-200 kg/ha) in the form of urea 46%. The experiment was carried out using a randomized complete block design with four replicates and the area of the experimental unit was 4 m2. The results showed that the effect of plant height and number of spikes/m2 was not significant. Significant differences were recorded in spike length in the study area for the maximum fertilization level (200 kg/ha) compared to (50 kg/ha). While the number of grains per spike did not record significant differences. The weight of 100 grains was significantly affected by the lighter weight (3.76 g) when fertilized at a rate of 50 kg/ha and the heavier weight (5.12 g) as a result of adding 200 kg/ha. Also, the biological yield was significantly affected by the increase in nitrogen from (24.40 tons/ha) at 50 kg nitrogen/ha to (29.01 tons/ha) at the level of 200 kg nitrogen/ha for the study area. The lowest grain yield (3,700 tons/ha) was obtained from the level of 50 kg nitrogen/ha, while the highest grain yield (4,300 tons/ha) was obtained from the level of 200 kg nitrogen/ha, but these differences did not reach the significant level. On the other hand, the harvest index was significantly affected by the added nitrogen levels. Nitrogen fertilization at a rate of 50 kg/ha gave the lowest harvest index (13.225%) and the highest (16.513%) when fertilizing at a rate of 200 kg nitrogen/ha for the study area.
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