Improve quality and productivity of some faba bean cultivars with foliar application of fulvic acid

Abstract

Background: Two field experiments were carried out at the Research and Production Station of the National Research Centre, Nubaria region, Behira Governorate, Egypt, during two winter seasons of 2014/2015 and 2015/2016. The aim of this study was to investigate the response of vegetative growth, yield, yield components, and some metabolic constituents of four faba bean (Vicia faba L.) cultivars "Nubaria 2, Sakha 1, Sakha 3, and Sakha 4" to foliar application of fulvic acid (FA) at 0.0, 3, 6, and 9 gL − 1. Results: The results show that all applications of FA increased all vegetative characters (i.e., plant height, number of branches and leaves, and total dry weight/plant, fourth leaf area and leaf area index, specific leaf weight, and crop growth rate), as well as, yield and its components (i.e., number of pods/plant, weight of pods/plant, seed and straw yield/plant, seed and straw yield/feddan, and seed index) of all studied faba bean cultivars, comparing to untreated plants. The results also show the total photosynthetic pigments content in leaves were increased by increasing FA concentration up to 9 gL −1. Treatment FA at 9 gL −1 , significantly improved the nutritional value and quality of seeds by increasing total carbohydrates, crude protein, minerals (nitrogen, phosphorus, and potassium) content, arginine, lysine, phenylalanine, and tryptophan. Conclusions: Generally, foliar application of FA at 9 gL −1 , singly or interaction with Sakha 4 effectively increased seed yield and quality. In conclusion, the growth and yield contributing characters and quality of four bean cultivars could be improved with foliar application of FA treatments.

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

“…This data showed that the positive related between rock phosphate with all K-humate substances. These data are with line of data obtained by Khaled and Fawy (2011), Shafeek et al (2013), Abdel-Rahman (2017), Sherif and Ali (2018) and Abd-El Baky et al (2019). Ahmed et al (2017) who find that Potassium humate improve NPK movements.…”

“…Available P was obtained and significant by rock phosphate and superphosphate, while the high relative increases with KHM. These data were confirmed with the results, which obtained by Abdel-Rahman (2017) and Abdel-Baky et al (2019). FA increased the movement of P in soil depth, phosphorus and FA together can be the improvement of P availability and chemical soil properties (Yang et al 2013).…”

“…Fulvic and humic acids added to the soil improve adsorption and pH (Khaled and Fawy, 2011). Humic and fulvic substances improve the soil's physical properties and soil productivity (Yang et al, 2013;Osman 2015;El-Etr and Hassan, 2017;Abdel-Baky et al 2019). Magnetic water at 15 min was positive effect on decrease of, electric-conductivity (EC), total dissolved salts (TDS) and pH (Babaloo et al, 2015 andShahin et al, 2016).…”

“…In sandy soil rock phosphate and humic substance effect on increasing soil availability of P compared to superphosphate and increased of soil availability of K (Osman, 2015). In leaves faba been were increased by FA total carbohydrates, crude protein, P and K content (Abdel-Baky et al, 2019). Fulvic, humic Acid increased P content and available indirectly and directly via exchangeable of P adsorption with fulvic or and metal complexion (Kadamet al, 2010 andHui, 2016).…”

“…Fulvic acid (FA) mixed with phosphorus (P) fertilizers and added to soil increasedavailable P, increased the organic carbon content and improved phosphorous mobility within soil matrix (Yang et al, 2013). Foliar application of FA at rates 0.3% (v/v) and 0.9% (9 g L −1 ), increased faba bean plant height, number of branches per plant, number of pods per plant, 100-seed weight, yield and protein and NPK content (Noor Al-jana et al, 2018 andAbdel-Baky et al, 2019).…”