showed that lignin-TPP nanoparticles are an efficient phosphorus source for plants, suppressing the typical growth inhibition and activation of the molecular mechanisms triggered by phosphate deficiency. These experiments underline the potential of lignin-TPP nanoparticles in providing readily accessible phosphate for plants during growth and development, which represents a step forward toward nanofertilizers that are able to release their payload on demand in a plant-growth-synchronized manner.
Boarino et al. (Sun,) studied this question.