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Cited by 19 publications
(11 citation statements)
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“…When plants lack phosphorous they release organic acids, such as oxalic acid, malic acid, and citric acid. 32 In this study, citric acid was selected as a typical organic acid generated by a plant to investigate the release behaviour of powder samples and our film-type fertiliser. The concentration of citric acid used was 50 μmol mL −1 which is the concentration normally produced by plant roots when phosphorus deficiency happens.…”
Section: Resultsmentioning
confidence: 99%
“…When plants lack phosphorous they release organic acids, such as oxalic acid, malic acid, and citric acid. 32 In this study, citric acid was selected as a typical organic acid generated by a plant to investigate the release behaviour of powder samples and our film-type fertiliser. The concentration of citric acid used was 50 μmol mL −1 which is the concentration normally produced by plant roots when phosphorus deficiency happens.…”
Section: Resultsmentioning
confidence: 99%
“…The increase in soil nutrient status was possibly due to the influence of HA which can inhibit urease activity, so that N loss through leaching and volatilization processes can be reduced [70,71]. The same thing also happened to P, where the HA application was possible to increase the availability and absorption of these nutrients by reducing the deposition rate of calcium phosphate (Ca-P) or aluminum phosphate (Al-P) because of the potential to form metal bridges with HA and/or FA [72,73]. Likewise the increase in K, Zhang et al [74] reported that HA stimulates the binding and release of K in the soil by influencing the surface properties of clay minerals and the reaction of K + with clay minerals.…”
Section: Effect Of Various Sources and Doses Of Humic Acid On Post-ha...mentioning
confidence: 99%
“…To determine the effects of organic acids on the concentrations of total P i (TP i ) and the individual P i fractions, 1.0 g of each 'spare' soil was extracted for 30 min using 20 ml of 2.5 mmol L −1 oxalic, citric and malic acid, which are the most common organic acids identified in soil (Zhu et al 2018). This concentration of organic acid was chosen by considering the rhizosphere values reported by Santos et al (2017). The soil suspension was then centrifuged at 5,000 rpm for 10 min and filtered through a 0.45-µm membrane filter.…”
Section: Organic Acid Amendmentmentioning
confidence: 99%