(2) The influence of nanoscale zero-valent iron on the phosphorus content of ‘Yanfu No.6’ apple leaves The phosphorus content of ‘Yanfu No.6’ apple leaves treated with different concentrations of nZVI showed a trend of initially decreasing and then increasing with growth and development.
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Foliar application of nano zero-valent iron improves the fruit quality of 'Yanfu No.6' apple.
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3 -D, it can be observed that the manganese content in apple leaves fluctuated after the application of nZVI, showing an overall trend of initially increasing, then decreasing, and increasing again.
(3) The influence of nanoscale zero-valent iron on the potassium content of ‘Yanfu No.6’ apple leaves The potassium content of ‘Yanfu No.6’ apple leaves treated with different concentrations of nZVI showed an increasing trend with growth and development (Fig. 2 -F).