Effect of both potassium phosphate and zinc nanocomposites prepared via gamma radiation on growth and productivity of potato under new reclaimed soils

Abstract

This experiment was carried out during the two successive seasons of 2019 and 2020, to evaluate the effect of PVP and PVA as stabilizers and capping agents to control the size of the potassium mono hydrogen phosphate (potassium phosphate) and zinc oxide nanoparticles produced by gamma irradiation. HRTEM measurement reveals the formation of potassium mono hydrogen phosphate and zinc oxide nanoparticles within the polymeric networks of PVP and PVA, with mean sizes of 6.3 nm and 33 nm, respectively. Fourier transform infrared (FT-IR) spectroscopy revealed the structure formation of PVP/ potassium mono hydrogen phosphate nanoparticles and PVA/ zinc oxide nanoparticles. The formation of potassium mono hydrogen phosphate and zinc oxide nanoparticles is proved by UV-vis spectroscopy measurements, which reveal distinctive absorption peaks. The agriculture study during the two successive seasons of 2019 and 2020, under El Nuberia Region, Beheira Governorate show that potato plants cv.Spunta sprayed with 8 ml / l of potassium phosphate and 9 ml / l of zinc oxide nano composite gave the tallest plant, highest fresh and dry plant haulm and number of stems per plant. As for potato yield, both previous concentrations scored the highest number of tubers per plant, average tuber weight and total yield per feddan, as well as chemical constituents of tubers such as specific gravity, dry matter percentage, starch, phosphorus and potassium percentage as well as zinc concentration.

Radiation preparation and antimicrobial activity of Poly(PVA/starch/Ag NPs) nanocomposite towards Penicillium digitatum on citrus fruits

“…42 The C-C stretching vibrations of the planar zigzag carbon backbone are appeared around 835.6 cm À1 . 43 The uncommon CO 2 peaks at 1973. 25, 1996.6, 2020, and 2166 cm À1 were observed in PVA and starch IR spectra which might be result from measuring conditions.…”

“…In addition, the peaks at 1837.7, 1715.57, and 1655 cm À1 have been ascribed to the C=O and C=C stretching modes respectively 42. The C-C stretching vibrations of the planar zigzag carbon backbone are appeared around 835.6 cm À1 43. The uncommon CO 2 peaks at 1973.25, 1996.6, 2020, and 2166 cm À1 were observed in PVA and starch IR spectra which might be result from measuring conditions 44.…”

Pilot Scale Testing of Lignite Adsorption Capability and the Benefits for the Recovery of Rare Earth Elements from Dilute Leach Solutions

“…Researchers have conducted several investigations on the bench scale for rare earth adsorption using humic acids [20][21][22]. Similarly, the adsorption capabilities of humic acids have been exploited in other industries [23,24].…”