Quantitative relationships between leaf total nitrogen concentration and canopy reflectance spectra of rice;

Quantifying the effects of leaf nitrogen concentration on the maximum leaf gross photosynthesis rate of greenhouse cucumber under different radiation and temperature conditions after flowering;

Correlation analysis was also made between red edge variables and leaf total nitrogen and leaf soluble sugar content.

Influence of different nitrogen concentrations on the growth and physiological characteristics of Chlorococcum sp..;

Effects of different nitrogen concentrations on physiological characteristics of Desmodium styracifolium at seedlings stage;

After analysing the influence on the growth of root and stem of three different nitrogen concentration and PH matrixes,we concluded that the notrogen concentration and pH value and their interaction have influences on the germination of seeds and the growth of Picea aspoerata seedling.