The efficacy of banana compost as biofertilizer on barley (Hordeum vulgare) plants grown on soil polluted with cadmium.

Abstract

Heavy metals are one of the important environmental pollutants and their toxicity is a great concern for plant growth. Cadmium (Cd) is a toxic heavy metal ion that is accumulated in the soil as a consequence of human activities. Plants own strategies to control the concentration of metal ions inside the cell to minimize the possible harm that could cause by being subjected to nonessential metal ions. However, the accumulation of cadmium concentration in the plant cells led to frail its resistance. In this study, grains of barley (Hordeum vulgare) were exposed to two Cd concentrations (150 and 300 ppm) against untreated control. Cadmium treatment caused a reduction in plant length at the highest level of Cd (300 ppm). The inhibition of chlorophyll content due to indirect Cd effects on the content of essential nutrients and osmoprotectants, including soluble sugars (SS), soluble proteins (SP), total free amino acids (TAA) and higher accumulation in proline contents. Excessive cadmium accumulation increased malondialdehyde (MDA) level in shoot and root systems disrupting the cell membrane. Data of the present study indicated that the usage of banana compost as a biofertilizer alleviated the drastic effect of cadmium stress in barley plants as it promoted growth performance, enhanced photosynthetic pigments, SS, SP, TAA and reduced proline. Banana compost balanced the absorption and translocation of mineral homeostasis from roots to shoots. Results indicated also that compost supplementation reduced lipid peroxidation. Our results may help shed light

The synergistic effects of organic composts and microelements co-application in enhancing potato productivity in saline soils

“…Similar results for the effect of BCo in improving the fresh and dry mass of barely under Cd stress were reported by Ref. [ 31 ]. The promotive effects of these organic manures are based on their ability to enrich soil nutrient availability and uptake as well as soil organic matter and biological activity [ 73 , 74 ].…”

“…Examples include compost [ 22 ], vermicompost [ 23 ], biochar [ 24 ], plant growth-promoting rhizobacteria [ 25 ], humic substances [ 26 , 27 ], and bio-fertilizers [ 28 ]. Several strategies and management practices including the application of organic and inorganic amendments were implemented to lessen the negative impacts of salinity and increase the growth and productivity of several crops such as wheat, faba bean, barely, and fodder beet in Egypt [ [29] , [30] , [31] , [32] ].Incorporating composts into saline soils during plowing could effectively revive poor soil with organic matter and various nutrients and improve the soil's physiochemical properties and biological activities [ 33 ]. Moreover, compost application could potentially modulate soil reaction, increase soil temperature, and maximize water and nutrient supply potentials of soil to reinforce the phyto-availability of nutrients and growth vigor of plants grown in salt-affected soils [ 34 , 35 ].…”

Exploring the synergistic effects of indole acetic acid (IAA) and compost in the phytostabilization of nickel (Ni) in cauliflower rhizosphere

“…Application of different osmoprotectants such as phenolics, soluble sugars and proteins offer significant roles in imparting tolerance to plants under stressed conditions [ 66 ]. Production of these osmoprotectants under stressed conditions indicates their potential to bear the burden of severe environmental stressors by harboring a strong antioxidant response [ 67 ]. Increased osmoprotectants after application of compost might be related to composts’ ability to enhance soil fertility owing to their saturation with carbon, hydrogen, and oxygen [ 68 ].…”

“…Hence, improved soil physicochemical attributes, increased organic matter contents and soil fertility status improved the concentration of osmoprotectants in plants [ 69 ]. Concentrations of MDA, and H 2 O 2 along with electrolyte leakage were significantly decreased under compost treatment, which reflected the tremendous potential of compost to alleviate the Ni mediated osmotic imbalance in plants and its disastrous impacts on cell membranes [ 67 ].…”

Genetic Potential of Bermuda Grass (Cynodon Dactylon L.) in Response to Foliar Application of Organic Fertilizer (Libro) and Cultar (Paclobutrazol)

“…Organic and animal materials in organic fertilizer can decompose in the soil into useful micro-parts and convert them from organic to inorganic nitrogen. This process is called mineralization, and the plant absorbs the nutrients as and when needed (Sposito, 2008;El-Tayeh et al, 2023;Liu et al, 2023). Total chlorophyll (mg g -1 fresh weight)…”