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Response of wheat plants (Tritium astrium L.) to NPK Nano fertilizer under saline soil conditions in Nineveh Governorate
Summary
This field trial found that NPK nano-fertilizer applied as ground and foliar treatments reduced the negative effects of soil salinity on wheat plant height and leaf area in saline soils of Nineveh Governorate, Iraq. The highest plant height (61 cm) and leaf area (10.7 cm2) were achieved with nano-fertilizer application in non-saline soil.
Three sites were chosen from Nineveh Governorate within the (Tal Abta) area due to the importance of these sites from an agricultural standpoint as they are grown with grain crops and irrigated supple-mentally depending on the difference (rainfall range, vegetation cover, variation in salt distribution). Excited samples were taken at a depth of (0 – 30) cm. On 10/5/2023 ,from the study sites, samples were prepared for cultivation, analysis and laboratory studies. The experiment was carried out according to a completely randomized design with three replications as a factorial experiment with three factors. The first factor is: three levels of soil salinity, a non-saline comparison soil less than (0.6 dS m-1). The western Tell Abta site (S1), soil with an electrical conductivity of (4.1 dS m-1) ,the southern Tell Abta site (S2), soil with an electrical conductivity of (7.8 dS m-1) the southern Tell Abta site (S3). The second factor: Ground fertilization: Neutral NPK Nano-fertilizer (20:20:20) will be used at three levels (G1=0, 10, G2=, G3=18) kg/h-1. Third factor: Foliar fertilization: Neutral NPK Nano-fertilizer (20:20) will be used. : 20) At three levels (0 F1 = 2 F2 = 3 F3 = 3) g L-1, the results showed that the highest plant height reached 61.33 cm in the S1F3 treatment, which was significantly superior to the other treatments and the comparison treatment at a height of 55.26 cm, and the lowest value. For plant height, it was recorded in the S2F3 treatment and amounted to 36.33 cm. As for the effect of the bilateral interaction between salinity and ground on the leaf area, the S1G3 treatment was significantly superior to the rest of the treatments and amounted to 10.71 cm2, with an increase of 88.22% compared to the comparison treatment, which amounted to 5.69 cm2, the lowest value recorded in the treatment. S3G3F2 at the third salinity level and reached 3.73 cm2. The results showed that using Nano fertilizer with ground fertilizer reduced the effect of soil salinity on both plant height and leaf area.
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