Studying the Effect of Magnetized Fulvate and Humate Solutions on Phosphorus Availability in Sandy Soil Cultivated by Faba Bean (Vicia Faba L.)

Abstract

T WO FIELD experiments were carried out in sandy soil at the Ismailia Agricultural Research Station during winter seasons of 2017/2018-2018/2019. The aim is to study the effect of magnetized aqueous solutions (0.5% v/v) of potassium fulvate (KF) and/or potassium humate (KH) sprayed in presence of soil applied rock phosphate (RP) and/or super phosphate (SP) fertilizers (16.09 Kg P ha-1 application rate) on faba been (Vicia faba L.) plant. Spraying of solutions was applied four times 30, 50, 70 and 90 days after sowing. Control treatments (0 additions), magnetized (KFM and/or KHM) and non-magnetized (mixed with tab water, KFT and/or KHT) treatments were distributed in a complete randomized block design. Cultivation was performed as recommended by the Ministry of Agriculture. At maturity stage and after harvest, yield (Mg ha-1) and some yield components, percentage (%) of N, P, and K available in soil and total in plant, pH and EC were estimated. Results showedthe magnetic treatments KFM and KHM resulted in the most significant increase of the available P (mg kg-1) in soil for RP and SP treatments and the available N for RP. The increase in the available K in soil was non-significant. Magnetic solutions of KFM and KHM also exhibited a significant increase in the seed weight and dry weight of pods (g plant-1) but the increase in the yield of seeds and straw (Mg ha-1) was non-significant. Foliar application of magnetic fulvate and humate solutions may enhance the efficiency of phosphorus fertilization under sandy soil conditions.

Response of Pearl Millet to Fertilization by Mineral Phosphorus, Humic Acid and Mycorrhiza Under Calcareous Soils Conditions

“…Foliar application of magnetic fulvate and humate solutions may enhance the efficiency of phosphorus fertilization under sandy soil conditions. Mohamed (2020) Phosphorus responses decrease with improvement in soil P-status, as expected. Even at the current high price of P 2 O 5 , this underscores the need to revise soil fertility limits (Tiwari, 2002).…”

“…However, soil N and P were declined gradually as a result of plant uptake of N and P throughout the growing season and due to increase of millet of green fodder yield in the first cutting than the second and third cuttings. Also, application of P foliarlyshowed positive effect on soil N and P content (Hassan, 2003, Abou-Amer, 2007and Mohamed, 2020.…”

Implications of seed irradiation with γ-rays on the growth parameters and grain yield of faba bean

“…Thus, managing N inputs is essential to increase grain productivity while sustaining soils. It is worthy to mention that beans can be grown successfully in poor light textured soils (Nafady et al, 2018;Akl and Abd el-Fattah, 2019;Saad Mohamed, 2020). Raising the productivity of such soils should be considered during bean production through successive applications on chemical fertilizers; however, these fertilizers may be lost rapidly from the top soil through leaching (Matichenkov et al, 2020).…”

“…A promising technique that is recommended by many researchers to increase plant productivity is through irradiating seeds with gamma rays (Parchin et al, 2019;Volkova et al, 2020;Abbas et al, 2015 and2020). This technique increases root elongation (Melki and Marouani, 2010), shoot length (Toker et al, 2005), induces further nutrient carriers (Abbas et al, 2020), stimulates plant growth and development (Marcu et al, 2013;Galal et al, 2018), increases free radicals (Bhat et al, 2007), inactivates plant pathogens (Rajkowski and Thayer, 2001) and enhances plant tolerance to biotic/abiotic stresses (Macovei et al, 2014).…”

Maximizing Use Efficiency of Mineral Fertilizers Using K Fulvate and Azotobacter chroococcum DSM 2286 and Their Effect on Wheat Production and Nutrients Uptake.

“…Fulvic acid has a significant effect on chemical reactions due to the presence of more electronegative oxygen atoms than any other humate materials, which enhances the permeability of the membrane (Mosa et al, 2020). Fulvic substances can affect the physiological processes of plant growth directly or indirectly (Yang et al, 2013 andMohamed, 2020) and can improve plant growth under soil conditions by enhancing the absorption of nutrients and reducing the absorption of some toxic elements (Kulikova et al, 2005). Anjum et al (2011) reported that fulvic acid increases the chlorophyll and water content of the leaves.…”