Phenology and Biomass Production of Wheat in Response to Micronutrients and Nitrogen Application

Sher, Ali; Naveed, Khalid; Gholami, Ahmad; Khan, Ayub; Saeed, Muhammad; Masaud, Shah

doi:10.17582/journal.sja/2018/34.4.712.723

Cited by 4 publications

(7 citation statements)

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“…In wheat, Zn salt (1-3 kg/ha; ≈ 0.5-1.5 mg/kg) alone did not affect the number of days to anthesis in plants grown in soil originally containing 0.17 mg/kg Zn. However, the interaction of N and Zn application significantly reduced time to anthesis (Sher et al, 2018). Therefore, the present study in which ZnO-NPs but not bulk ZnO reduced panicle initiation time in the droughtstressed but not in the unstressed plants lends credence to both the nano-specificity and the water status-dependence of these effects.…”

Section: Discussionsupporting

confidence: 50%

Facile Coating of Urea With Low-Dose ZnO Nanoparticles Promotes Wheat Performance and Enhances Zn Uptake Under Drought Stress

et al. 2020

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Zinc oxide nanoparticles (ZnO-NPs) hold promise as novel fertilizer nutrients for crops. However, their ultra-small size could hinder large-scale field application due to potential for drift, untimely dissolution or aggregation. In this study, urea was coated with ZnO-NPs (1%) or bulk ZnO (2%) and evaluated in wheat (Triticum aestivum L.) in a greenhouse, under drought (40% field moisture capacity; FMC) and non-drought (80% FMC) conditions, in comparison with urea not coated with ZnO (control), and urea with separate ZnO-NP (1%) or bulk ZnO (2%) amendment. Plants were exposed to ≤ 2.17 mg/kg ZnO-NPs and ≤ 4.34 mg/kg bulk-ZnO, indicating exposure to a higher rate of Zn from the bulk ZnO. ZnO-NPs and bulk-ZnO showed similar urea coating efficiencies of 74-75%. Drought significantly (p ≤ 0.05) increased time to panicle initiation, reduced grain yield, and inhibited uptake of Zn, nitrogen (N), and phosphorus (P). Under drought, ZnO-NPs significantly reduced average time to panicle initiation by 5 days, irrespective of coating, and relative to the control. In contrast, bulk ZnO did not affect time to panicle initiation. Compared to the control, grain yield increased significantly, 51 or 39%, with ZnO-NP-coated or uncoated urea. Yield increases from bulk-ZnO-coated or uncoated urea were insignificant, compared to both the control and the ZnO-NP treatments. Plant uptake of Zn increased by 24 or 8% with coated or uncoated ZnO-NPs; and by 78 or 10% with coated or uncoated bulk-ZnO. Under non-drought conditions, Zn treatment did not significantly reduce panicle initiation time, except with uncoated bulk-ZnO. Relative to the control, ZnO-NPs (irrespective of coating) significantly increased grain yield; and coated ZnO-NPs enhanced Zn uptake significantly. Zn fertilization did not significantly affect N and P uptake, regardless of particle size or coating. Collectively, these findings demonstrate that coating urea with ZnO-NPs enhances plant performance and Zn accumulation, thus potentiating field-scale deployment of nano-scale micronutrients. Notably, lower Zn inputs

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Section: Discussionsupporting

confidence: 50%

Facile Coating of Urea With Low-Dose ZnO Nanoparticles Promotes Wheat Performance and Enhances Zn Uptake Under Drought Stress

et al. 2020

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“…pH of compost was measured in a suspension of compost and water (1:5) after half an hour of stirring using pH meter. The compost electrical conductivity was measured by EC meter as suggested by Sher et al (2018). The P and K in the soil were estimated by using atomic absorption spectrometer and flame photometer.…”

Section: Integrated Nutrient Managementmentioning

confidence: 99%

“…The P and K in the soil were estimated by using atomic absorption spectrometer and flame photometer. The soil N was measured by using kjeldhal procedure described by Sher et al (2018). The required Nitrogen is 120 kg ha -1 for wheat optimum production and is used conventionally.…”

Section: Integrated Nutrient Managementmentioning

confidence: 99%

Planting Technique and Integrated Nutrient Management in Deep Tillage for Manipulating Wheat yield

Haq¹,

Ramzan²,

Khattak³

et al. 2022

SJA

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“…pH of soil was measured in a suspension of soil and water (1:5) after half an hour of stirring using pH meter. The P and K in the soil were estimated by the procedure described by Sher et al (2018) using atomic absorption spectrometer and flame photometer. The soil N was measured by using kjeldhal procedure.…”

Section: Experimental Sitementioning

confidence: 99%

“…The soil N was measured by using kjeldhal procedure. The soil electrical conductivity was measured by EC meter as suggested by Sher et al (2018). The net house environmental conditions are shown in Table 2.…”

Section: Experimental Sitementioning

confidence: 99%

Impact of Different Levels of Bulk Densities Combination on Yield and Yield Component of Wheat (Triticum Aestivum L.)

Sabir¹,

Khattak

Haq³

et al. 2021

PJAAEVS

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An experiment was conducted on the impact of different levels of bulk densities combination on yield and yield components of wheat. Three bulk density levels 1.00-1.30 (A) g cm-3, 1.30-1.60 (B) g cm-3 and 1.60-1.90 (C) g cm-3 with three different depths (0-15, 16-30 and 31-45 cm) were used in the experiment using silt loam soil (Pedocals). The total treatments were 27 in the experiment with three replications. The experimental design was completely randomized design (CRD). The treatment means were checked at the confidence level of 95% of probability. The soil 0-45 cm deep was shifted from the field (no-till) to the net house and was act as control. The results showed that the number of tillers plant-1, number of leaves plant-1 and thousand grain yield were non-significantly affected by all the treatments while number of seed emerged, root length, dry root weight, plant height, grain yield , biological yield and harvest index were significantly influenced by various treatments. The highest number of seed germinated (8.00) was found in the treatment BBB (1.30-1.60 g cm-3 in 0-15 cm, 15-30 cm, 30-45 cm soil depth), BAB (1.30-1.60 g cm-3 in 0-15 cm, 1.00-1.30 g cm-3 in 15-30 cm and 1.30-1.60 g cm-3 in 30-45 cm soil depth) and BCB (1.30-1.60 g cm-3 in 0-15 cm, 1.60-1.90 g cm-3 in 15-30 cm and 1.30-1.60 g cm-3 in 30-45 cm) while the lowest number of seed emerged (3.6) was found in AAA (1.00-1.30 g cm-3 in 0-15 cm, 15-30 cm and 30-45 cm soil depth), ACA (1.00-1.30 g cm-3 in 0-15 cm, 1.60-1.90 g cm-3 in 15-30 cm and 1.00-1.30 g cm-3 in 30-45 cm soil depth) and CAC (1.60-1.90 g cm -3 in 0-15 cm, 1.00-1.30 g cm-3 in 15-30 cm and 1.60-1.90 g cm-3 in 30-45 cm soil depth). The highest root length (13.12 cm) was found in the treatment AAA while the lowest root length (10.05 cm) was found in CAC. The highest dry root weight (5.67g) was found in the treatment ABA while the lowest dry root weight (4.79g) was found in control treatment. The highest plant height (42.67 cm) was found in the treatment of BBA while the lowest plant height (29.67 cm) was found in control. The highest biological yield (12.1 metric ton ha-1) was found in the treatment ABA while the lowest biological yield (6.8 metric ton ha-1) was found in control. The highest grain yield (4.4 metric ton ha-1) was found by ABB while the lowest (2.7 metric ton ha-1) was found in the control. The highest harvest index (39.79%) was found in the control while the lowest harvest index (34.54%) was found in CCA. The experiment showed that increasing bulk density above 1.60 g cm-3 resulted in decreasing the yield and yield component of the winter wheat. The number of seed emerged, root length, dry root weight, plant height, grain yield, biological yield and harvest index of wheat were significantly affected by soil bulk density in various depths.

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Phenology and Biomass Production of Wheat in Response to Micronutrients and Nitrogen Application

Cited by 4 publications

References 0 publications

Facile Coating of Urea With Low-Dose ZnO Nanoparticles Promotes Wheat Performance and Enhances Zn Uptake Under Drought Stress

Facile Coating of Urea With Low-Dose ZnO Nanoparticles Promotes Wheat Performance and Enhances Zn Uptake Under Drought Stress

Planting Technique and Integrated Nutrient Management in Deep Tillage for Manipulating Wheat yield

Impact of Different Levels of Bulk Densities Combination on Yield and Yield Component of Wheat (Triticum Aestivum L.)

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