It was found that there was a general increase in the solid extracting yield levels with coarseness of plucking standard,whereas the concentration of tea polyphonenols and caffeine decreased with coarseness of plucking standard.

According to the biological characteristic of Ilex kudingcha and the principle of picking tea ,applying ages, picking extent and picking method three factors and three levels layout ,the ways of achieving the output of Ilex kudingcha tea during earlier period and promoting Ilex kudingcha to shape tree was explored.

Because the precision of the main motion system of mulberry leaves plucking machine is high, its source of error is analyzed and the key factors of influence error are found for assuring assemble precision of the main motion system in the case of reducing machining difficulty of interrelated parts.

The results shows that the young leaves and stems of the plant contained crude protein,crude fat,crude fibre,VB1,VB2,VB6,carotene,K,Na,Ca,Mg,Fe,Mn,Zn,Cu,palmic acid,stearic acid,oleic acid,linolic acid,linolenic acid,and and 17 kinds of amino acid.

In this paper,the phytochemical components of the essential oils of flowers,young leaves and root-bark from Cinnamomum camphora(L.