Biofertilizers Enhance Quality of Onion

Abstract

This investigation was conducted to determine the effect of organic fertilizers on the content of chlorophyll a, chlorophyll b, antioxidant activity, crude fibre, and zinc in two onion cultivars, Stuttgarter Riesen and Rote Laaer, during 2016, 2017, and 2018. In this research, the following treatments were used: B-Stimul (contains Azospirillum Tarrand et al., Azotobacter Beij., Bacillus Cohn, Chlorella vulgaris Beij., and Herbaspirillum Baldani et al.), EkoBooster 2 (contains biostimulators and mineral salts of nitrogen, phosphorus, and potassium) and Vermifit A (extract of compost of Californian earthworm). The results showed that the application of biofertilizers to onion resulted in the highest chlorophyll b content in 2017 in Stuttgarter Riesen. EkoBooster 2 positively affected crude fibre content in both cultivars, but only in 2016. Antioxidant activity was not significantly affected by the interaction of experimental factors. The application of the biostimulating fertilizers can have a positive impact on the quality parameters of onion, but the kind of fertilizer must be suited to seasonal conditions and the cultivar.

Long-Term Effects of Animal Manures on Nutrient Recovery and Soil Quality in Acid Typic Hapludalf under No-Till Conditions

“…The objective of biofortification is to find ways to produce edible plants fortified with micronutrients that are easily assimilable by humans [111,112]. Research has shown that some crucifers [113], potato cultivars [114], onion cultivars [115], maize [116], and vegetable greens [117,118] could be biofortified with Zn or Fe. Manure applications could thus contribute to biofortification.…”

The Individual and Combined Effect of Nanoparticles and Biofertilizers on Growth, Yield, and Biochemical Attributes of Peanuts (Arachis hypogea L.)

“…Biofertilizers may play an essential role in enhancing crop productivity and maintaining soil fertility in the long term while reducing the environmental burden associated with fertilizer production and nutrients leaching into groundwater deposits [44]. In addition, the microorganisms usually included in the biofertilizers might interact with the plants and boost their immunity, growth, and development, which consequently increase crop production [45][46][47]. The inoculation of peanut plants with mycorrhiza in the current study significantly enhanced the total chlorophyll, dry weight, and crop growth rate of groundnut plants (Figure 1).…”

Enhancing Onion Yield, Quality, Storability and Profitability by Using FYM, Copper and Bio-fertilizer

“…Moreover, Wu et al (2005) cleared that biofertilizer improved the growth substances such as indole acetic acid, gibberellins, as well as cytokinin materials. Many workers stated the beneficial effect of biofertilizers on onion quality and quantity such as Shaheen et al (2007), Abou El-Salehein et al (2014), Kumar et al (2019) and Rafique et al (2019).In general, biofertilizers can be successfully applied to onion plants under conditions which are favorable for the effective action of a particular kind of fertilizer, but the expectations of their potential should be reasonable (Petrovic et al 2020).…”