Abstract: The key technology of high yield and good quality light simplified cultivation from the aspects of plant adjustment,technology of integral control of water and fertilization in plastic greenhouse in early spring crop of wax gourd was studied. By measuring indexes of yield,single fruit weight and quality of different treatments,the results showed that,with removable nipple technique of wax gourd in early spring greenhouse,the yield increase rate reached 8.03% than the control,the growth rate of single fruit weight reached 16.58%. Compared with the traditional fertilizer,the increased production of formula fertilizer was remarkable on different varieties,wax gourd of Beijing Yi-Chuan-Ling and Bi-xiu relative increase rate was 22.65% and 35.28% respectively. The quality of wax gourd improved obviously by applying formula fertilizer,the nitrate content reduced 48.79% and 0.96% respectively,VC content increased 57.69% and 10.71% respectively,soluble solids content increased 2.38% and 7.54% respectively,sugar acid ratio increased 22.76% and 40.21% respectively.

Key words: wax gourd, high yield and good quality, light simplified cultivation, removable nipple technology, the technology of integral control of water and fertilization