稀土转光膜对日光温室小环境、甜瓜生长、果实品质的影响OA

To provide reference for the application of rare-earth light conversion film in facility vegetable production,melon Jiashuai-hongxing was used as test material,and ordinary high-temperature PO drip film was used as control(CK),the effects of rare earth light conversion film on the growth and fruit quality of muskmelon in solar greenhouse were studied.The OHSP-350UVCOHS spectrometer was used to measure the transmission spectrum of greenhouse films,SPAD-502 chlorophyll meter and other instruments,HOBO wire-less bluetooth temperature and luminosity recorder,PAL-BXIAACID3 series ATAGO sugar meter and other indicators were used to measure the optical properties of greenhouse films and their coverage of the greenhouse environment,melon growth,fruit yield,and main quality.Tne results showed that the rare-earth conversion film with added rare earth conversion agent increased the proportion of blue purple light in the greenhouse compared to the ordinary PO film,and decreased the proportion of green light and red orange light.The average light intensity and daily maximum light intensity inside the rare earth conversion film greenhouse had decreased.The av-erage indoor air humidity and daily minimum air humidity had been improved.The flowering and pollination period of cantaloupe had been advanced by 2 days.The yield of sweet melons per mu increased by 14.4％,the rate of commercial melons increased by 2.7％,and the cracking rate decreased by 23.5％.In conclusion,compared with high insulation PO film,rare earth light conversion film has the ability to enhance plant photosynthesis and promote plant growth and development in greenhouse melon cultivation.