Effects of Equal Width Strip Rotation on Photosynthetic Performance and Yield of Summer Maize and Peanut
This study aimed to investigate the effect of equal width strip rotation on photosynthetic performance and yield of summer maize and peanut in Huaibei Plain,the summer maize variety Zhengdan958 and summer pea-nut variety Luhua No.8 were used as experimental materials,and summer maize and peanut were used as control(CK).The equal width strip alternating rotation of summer maize and peanut was set up,and field experiments were carried out at the Wanbei Experimental Station of Anhui Agricultural University from 2020 to 2021.The effects of equal width strip rotation on photosynthetic performance,dry matter accumulation,yield and land equivalent ratio were analyzed.The results showed that,compared with continuous cropping,the leaf area per plant and chlorophyll content of summer maize in equal width strip rotation increased significantly after flowering,and the net photosyn-thetic rate increased significantly after grain establishment;the leaf area per plant and net photosynthetic rate of pea-nut in equal width strip rotation were significantly increased during the whole growth period,and chlorophyll con-tent increased significantly before the podding stage.Compared with continuous cropping,the yield and dry weight of whole plant of summer maize and peanut in equal width strip rotation increased significantly,and the land equiva-lent ratio was improved.In conclusion,under the equal width strip rotation,the photosynthetic performance,dry mat-ter accumulation,yield and land equivalent ratio of summer maize and peanut have been significantly improved and increased compared with continuous cropping,which have a positive effect on making full use of environmental re-sources,improving obstacles of continuous cropping,and increasing crop yield.
Summer maizeHuaibei PlainEqual width strip rotationPeanutPhotosynthetic performanceYieldLand equivalent ratio
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