A study was conducted in the Waterfalls area of Nineveh Governorate, characterized by a semi-arid climate and clay-textured soils, to assess the impact of furrow opener type and seeding depth on the productive traits of wheat under no-till farming conditions. Two furrow opener types were tested: a 2 cm spear-type and a 3.5 cm winged-type, along with two seeding depths (4 cm and 6 cm), under seasonal rainfall of 281 mm. Results demonstrated the superiority of the winged furrow opener at a 6 cm depth across most studied parameters. The highest spike weight was recorded at 1.29 g compared to 1.18 g at 4 cm depth, along with a higher number of grains per spike (41.67 vs. 34.33). Additionally, the 6 cm depth yielded a greater number of spikes per square meter (378.33 with the winged opener vs. 345.67 with the spear-type), and a higher number of tillers (346 vs. 293). Although no statistically significant differences were found in the 1000-grain weight, the winged opener at 6 cm still achieved the highest value (28.00 g). The findings underscore the importance of the interaction between furrow opener type and seeding depth in enhancing the efficiency of no-till systems. The study recommends adopting the winged furrow opener at a seeding depth of 6 cm to improve wheat productivity in arid and semi-arid regions, with potential applicability to other crops under similar environmental conditions.

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Impact of Furrow Opener Type and Seeding Depth on Wheat Productivity Under No-Till Farming Techniques in Semi-Arid Conditions in Iraq

  • Mahmood Shaker Al-totonjy,
  • Yahya Y. Mohsin,
  • Wadhah Thabit Abed AL-Dahi,
  • Jarullah Maher,
  • Asaad Ibrahim Alhayali

摘要

A study was conducted in the Waterfalls area of Nineveh Governorate, characterized by a semi-arid climate and clay-textured soils, to assess the impact of furrow opener type and seeding depth on the productive traits of wheat under no-till farming conditions. Two furrow opener types were tested: a 2 cm spear-type and a 3.5 cm winged-type, along with two seeding depths (4 cm and 6 cm), under seasonal rainfall of 281 mm. Results demonstrated the superiority of the winged furrow opener at a 6 cm depth across most studied parameters. The highest spike weight was recorded at 1.29 g compared to 1.18 g at 4 cm depth, along with a higher number of grains per spike (41.67 vs. 34.33). Additionally, the 6 cm depth yielded a greater number of spikes per square meter (378.33 with the winged opener vs. 345.67 with the spear-type), and a higher number of tillers (346 vs. 293). Although no statistically significant differences were found in the 1000-grain weight, the winged opener at 6 cm still achieved the highest value (28.00 g). The findings underscore the importance of the interaction between furrow opener type and seeding depth in enhancing the efficiency of no-till systems. The study recommends adopting the winged furrow opener at a seeding depth of 6 cm to improve wheat productivity in arid and semi-arid regions, with potential applicability to other crops under similar environmental conditions.