Temperature Effect of Different Greenhouses and Their Effects on Watermelon Growth in the Coastal Regions
SUN Xing-xiang
LIN Hong-mei
Abstract：To investigate the effect of different greenhouses on heat insulation and temperature increasing in the coastal re-gions of Jiangsu,four greenhouse types were designed. As referred with the local regional meteorological data,we employed the three shed four film covering cultivation and determined the greenhouse temperature variations,and the growth status, output and economic efficiency of watermelon. The results showed that: when planting watermelon in greenhouse at early spring stage,sowing in mid- and late-Feb,the watermelon would be marketing in May. The optimal mode was P3 type greenhouse (width × height=6 m×2.2 m) containing three shed and four film covering. Employing the P3,the temperature was suitable,and the watermelon could possess well growth,good quality and high efficiency,In addition,the P1 type green-house (width × height = 5 m × 1.8 m) still possessed the advantages that it was easy to build and move with low cost,and owned stable efficiency;Besides,it was not recommended to us P2 (width × height=5 m×2 m) and P4 (width × height=7 m×2.45 m),because of no superiority of them in heat insulation,plant growth and economic efficiency.
Keywords：WatermelonCoastal regionsGreenhouse typeTemperatureGrowth
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 18-20,25 )