Spent coffee grounds (SCG), an ever-increasing food waste whose annual generation is 15 million tons, have the potential to fulfil many different purposes after being recycled. However, though SCG been used as soil organic amendment, their utilization limited by phytotoxic nature. Although favour assimilation of nutrients plants, whether or not they could be agronomical bio-fortifying agent has...

Recently, the use of superparamagnetic iron oxide nanoparticles (SPIONS) as a new and promising source of iron in agriculture has been suggested that further investigation is needed before extensive field use. In a greenhouse experiment, the effect of coated magnetite nanoparticles with humic acid (Fe3O4/HA NPs) was investigated on iron deficiency chlorosis and photosynthesis efficiency compare...

An experiment was conducted to evaluate the biological control activity of Pseudomonas fluorescens PO2 and chelated iron Fe-EDDHA (Fe) at a concentration 0.5% interaction between them for inhibiting Fusarium oxysporum Fo6 on pepper. In vitro, significantly inhibited growth with an inhibition rate 83.33% compared control, caused significant decrease 66.67% while not affecting PO2. The results po...

Abstract Aims Elevated atmospheric CO 2 (eCO ) and restricted iron (Fe) supply are known to impact plant growth nutritional quality of food crops. However, studies aimed at understanding how eCO will interact with Fe deficiency scarce. Changes in the status common bean ( Phaseolus vulgaris L.) may significantly populations that rely heavily on this crop. Methods To understand combined effects m...

Hydroponic systems are efficient for studying plant nutrition. It is often desirable to adjust individual nutrients unique species’ needs and/or create multiple nutrient deficiencies within the same study. However, this challenging do with traditional solutions as generally added dual salts, such when varying phosphorus (P) concentration also affects nitrogen concentration; potentially, chemica...

Elevated CO2 (eCO2) has been reported to cause mineral losses in several important food crops such as soybean (Glycine max L.) and common bean (Phaseolus vulgaris L.). In addition, more than 30% of the world’s arable land is calcareous, leading iron (Fe) deficiency chlorosis lower Fe levels plant tissues. We hypothesize that there will be combinatorial effects eCO2 on dynamics these at a morpho...