Chimonobambusa utilis shoot forest mixed with evergreen and deciduous broad-leaved trees can increase utilization rate of luminous energy and vegetation space,and effectively improve the habitat in the forest land.

The major factors causing deciduous fruits to be dormant is low temperature.

To summarize several aspects of research on nitrogen nutrition in deciduous fruit tree, including nitrogen s effect on output and quality,nitrogen cycling,nitrogen diagnosis and precision application technology.

The functioning mechanism,absorption,transference,distribution,effective period and perennial effect ,as well as application of paclobutrazol in deciduous fruit trees were summarized.

Gibberellin had many purposes for deciduous fruit crops,which are inducing the seedless fruit,raising fruit set rate,improving quality of fruit,preventing flowers and fruits dropping,promoting the fruit mature,postponing florescence period,increasing fruit storage ability,breaking dormant.

To satisfy Chilling requirement (CR) of deciduous fruit crops is an important guarantee for deciducxn fruit crops to sprout, blossom and bearing normally.