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l 2019 12 09 a 1 B 1 u 9 v 2016BZ0901 b T e b E mail 1017903990 Y T f p V q p V 3 b E mail zhyhcau j v 2020 47 4 648 654 Journal of Anhui Agricultural University DOI 10 13610 ki 1672 352x 20200907 018 H W 2020 9 9 10 12 21 URL M M d i Y 1 2 f 1 a Z 3 1 4 a 1 f k 1 1 R 1 1 S 2 1 a 1 v j 750021 2 S j S j B 9 T 453002 3 a 750105 4 R R 644000 K 1 M M b M i 0 8 i a Y T i Tr Y i CK 0 8 V a i a S k s b T V d Tr 8 V a i CK O i A s Tr CK s Y 1 396 60 38 99 kg 969 32 23 78 kg CK M 1 Tr 9 F 44 b d s Y 4 T L a T a c 33 a28 57 H 4 V 17 a 1 75 a 3 C 30 b T V i a 4 6 4 I b 1 o M i 8 m s S668 404 7 D S M A c I 1672 352X 2020 04 0648 07 Effect of phase change thermal storage system on solar greenhouse thermal environment and the yield and quality of strawberry LI Peng 1 2 ZHANG Yahong 1 CUI Hai 3 HU Wei 1 4 ZHAI Xuening 1 ZHANG Xiaoli 1 WANG Baohua 1 GUO Songtao 1 FENG Xue 1 FAN Yongshen 2 1 School of Agriculture Ningxia University Yinchuan 750021 2 Farmland Irrigation Research Institute Chinese Academy of Agricultural Science Xinxiang 453002 3 Yinchuan Energy Institute Yongning 750105 4 Sichuan Tea College Yibin University Yibin 644000 Abstract To explore the effect of the indoor thermal environment on the yield and quality of strawberry we installed the phase change material and solar air collector in the trapezoidal north wall of solar greenhouse We ana lyzed the wall surface temperature root environment temperature indoor and outdoor temperature and the difference in the yield and quality inds of strawberry between trapezoidal wall of active passive thermal storage greenhouse abbreviated as Tr and ordinary greenhouse abbreviated as CK The results showed that the wall surface tempera ture root ambient temperature and indoor temperature of Tr were significantly higher than those of CK regardless of any typical weather the yield in the treatment group Tr was 1 396 60 38 99 kg which was 44 higher than that of CK 969 32 23 78 kg Active passive heat storage system could increase the contents of glucose fructose and sucrose in the strawberry fruit by 33 28 and 57 respectively and it also increased the contents of soluble sugar by 17 sugar acid ratio by 75 and vitamin C by 30 The results of this study could provide a reference for im proving the greenhouse heat environment and improving the quality and yield of strawberry Key words solar greenhouse wall temperature strawberry quality yield i d 1 3 T K D 1 b N i 4 a R A h h j 0 P 2 b i s i r V b T 3 1 W H W W 1 i F d 1 b V E M V 3 V h X v 0 4 b 47 4 M M d i Y 649 N F j A 1 h F h i Z 5 6 b M M T l M f V h l i M i 7 3 4 b M M Y V l W V V i W b h 1 i b Xie 8 M M F i V 9 i W b H V r 10 3 h b 5 9 a 10 M M Z M M F i b b r V Y V b F i b Lazaar 11 b 5 i p V P i 6 2 Joudi Farhan 12 b d V 4 i p p 46 bAttar 13 P 5 d FPC F l D i V 1 1 000 m 3 i F 51 8 i 9 F i 5 b B i b r 0 8 i y z N 1 S u v w 14 17 5 F i e b i 1 Y F Z T 7 d i p b k N T r 0 8 i P M M b M T d k s i a 1 4 a R 4 9 h 4 I b 1 Z E 1 1 k i k i a 1 E a 1 u 38 55 N 106 35 E b k i k IV i U 2 80 m t 10 0 m 4 3 m 3 7 m V z 2 5 m l g 0 9 m 1 5 m r 0 b i PO p W b 1 2 k Z E 1 2 1 k 9 i Z s 2 i u s Y T M M i Tr Y i CK 2 i W 500 mm PO O a 5 a 5 a i b W s b M M i 5 M M v 4 1 s F a Y a a C B 1 r p p I M 1 M M i V 14 17 40 mm b z O 6 p 40 mm Y V S 40 mm 40 mm i V u p r L b N Tr 8 W 2 m F 0 8 8 10 cm b Y g 200 mm PVC 5 8 b Y Y V F p 40 mm M M b Y g 200 mm PVC 5 PVC 5 Z U 5 b S K 4 M i 8 b 8 b T M M 8 d b d m n m 1 H W 10 00 16 00 b T M M i Tr Y i CK P a j S 4 i B W 5 T M k W 9 T b 12 00 14 00 Y H W b m 1 T M M 8 d Figure 1 Active passive phase change in thermal storage wall system 650 j v 2020 M 1 2 2 k s 8 i 25 g T 9 100 2 T q T 9 100 3 1 V c V c 100 4 1 3 s Excel q k R q One way ANOVA Z s i LSD E 1 Origin 9 1 m b 2 T s 2 1 i M 2 1 1 i i M m 2 A U k W d 2018 02 03 0 00 Q 0 00 a 2018 02 09 0 00 Q 0 00 a 2018 02 20 0 00 Q 0 00 i i M b a d Sunny day 2018 02 03 b Overcast 2018 02 09 c Cloudy 2018 02 20 m 2 i i M Figure 2 Changes of greenhouse indoor and outdoor temperature in typical weather a d Sunny day 2018 02 03 b Overcast 2018 02 09 c Cloudy 2018 02 20 m 3 i i r M Figure 3 Changes of greenhouse soil temperature in typical weather m 2a V d 2018 02 03 W Tr o S 4 23 j18 29 CK o S 2 09 j19 38 b d Tr aCK i s Y 9 89 a9 49 i Y 651 Tr 1 CK 0 40 Tr aCK i W 7 43 a6 15 i Y 653 30 30 Tr i T L V c a s A s Y 9 16 77 5 80 Tr i T L V c s A 34 21 b 2 3 2 k i T L F s c V 3 A U Tr CK i T L T c a c a c a 9 c a x c F s S k T b V 3 V CK M 1 Tr i T L T c a c a 9 c x c A s 9 s Y 28 49 a57 70 a 39 72 17 41 Tr i T L c s A 9 33 31 b 3 v i T r B 3 p W 20 j30 W 14 j18 b i H 5 1 F d i 4 1 b 1 p 22 3 5 K a R 3 15 j20 T K a a R 15 j25 b T M M d i V 1 p b M M A i H q l i v W Y V b A 4 i 24 a 25 T B b W 4 V r E T b k T V Y V T d a 4 T V 3 b Kim 26 V s l Y A B S s l 6 7 9 F b k Y V T d F 4 s l 3 4 T q b i Y V a a B x K v i 4 27 T M M i Y V 8 7 S B 4 6 Z b Y V i a k 1 s V b 1 v i CK M 1 T i Tr d i a r a 8 V s Y 0 40 a0 76 0 45 W s Y 1 28 a0 91 0 99 Tr i a r a 8 V s Y 0 96 a0 87 0 71 W s Y 0 80 a0 95 0 70 Tr i a r a 8 V s Y 1 86 a0 94 0 82 W s Y 1 75 a1 08 0 74 b k T V M M d A T 9 F S 0 8 b 4 6 i b 2 k W CK M 1 Tr i T a s Y 5 95 427 28 kg T q 7 46 T q 4 26 b 3 CK M 1 Tr i T L V c a 1 a 3 C c a V c A A s Tr i T L V c Tr i T L c a T c a c a 9 c x c A A s b I D 1 SETHI V P SHARMA S K Survey and uation of heating technologies for worldwide agricultural green house applications J Sol Energy 2008 82 9 832 859 2 MOCCALDI L A RUNKLE E S Modeling the effects of temperature and photosynthetic daily light integral on growth and flowering of Salvia splendens and Tagetes patula J J Am Soc Hortic Sci 2007 132 3 283 288 3 5 M M 8 i J j 2012 28 10 194 201 4 DABIRI S KHODABANDEH E POORFAR A K et al Parametric investigation of thermal characteristic in tra pezoidal cavity receiver for a linear Fresnel solar collector concentrator J Energy 2018 153 17 26 5 DABIRI S HASHEMI M RAHIMI M et al Design of an innovative distributor to improve flow uniity using cylindrical 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