关键词: 光伏电板, 沙打旺, 叶片性状, 氮含量, 磷含量

Abstract: In order to reveal the effect of photovoltaic panel arrangement on plant growth, this study selected Astragalus adsurgens as  subject  which were planted in 2016 at three typical parts such as the plate front edge, the plate back edge, and  under the plate,  and determined its plant height, leaf characters and stem and leaf nutrients. The results showed that: ① The plant height of Astragalus adsurgens was the under plate>the plate front edge>the plate back edge>the control group, and the maximal value which was the under plate was increased by 3070%、8750%、9997% than the control group, respectively. ② The specific leaf area of the under plate was increased from 18845 cm2·g-1 to 22024 cm2·g-1,but the specific leaf area of the control group was decreased from 13886 cm2·g-1 to 10214 cm2·g-1,the layout of photovoltaic panels made the leaves of Astragalus adsurgens grow longer and thinner and bigger. ③The N content and crude protein content of Astragalus adsurgens around the photovoltaic board were higher than the control group, while the P content increased significantly of the under plate from 008% to 019%, it could be seen that the photovoltaic panels were beneficial to the accumulation of N, crude protein and P. ④The fresh weight of aboveground biomass at each position was significantly higher than that of the control group. Therefore, the placement of photovoltaic panels could significantly promote the better growth and development of Astragalus adsurgens.

Key words: photovoltaic panel, Astragalus adsurgens, leaf characters, N content, P content