| Effects of plastic film mulching patterns and water retaining agent on photosynthetic characteristics and yield of rainfed potato |
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| DOI：10.7606/j.issn.1000-7601.2016.03.22 |
| Key Words: film mulching water retaining agent rainfed potato photosynthetic characteristics yield |
| Author Name | Affiliation | | BAO Kai-hua | College of Agricultural Inner Mongolia Agricultural University, Hohhot 010019, China | | MENG Mei-lian | College of Agricultural Inner Mongolia Agricultural University, Hohhot 010019, China | | CHEN You-jun | College of Life Science,Inner Mongolia Agricultural University, Hohhot 010018, China | | ZHANG Ting-ting | College of Agricultural Inner Mongolia Agricultural University, Hohhot 010019, China | | YU Xiao-bin | College of Agricultural Inner Mongolia Agricultural University, Hohhot 010019, China |
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| Abstract: |
| To explore the suitable rainfed potato production by film mulching in the Inner Mongolia Yinshan Mountain area, “Kexin l” was selected as the material, thereby to study the influence of four different film mulching patterns including conventional tillage (CK), harrowed bedding with film mulching (PZHS), double ridge mulched completely by film (QFM), ridge culture mulched by film (QLMC), and water retaining agent on photosynthetic characteristics and productivity of potato. The result showed that regardless of the water retaining agent, the variations in Pn、Gs、Tr decreased. The three kinds of film mulching patterns increased Pn、Gs、Tr in the order of QLMC>QFM>PZHS. On the other hand, Ci was significantly lower than CK in the three kinds of film mulching, with the order of PZHS>QFM>QLMC. The three kinds of film muching showed higher potato productivity, with an order of QLMC>QFM>PZHS. For the same film mulching, the productivity and the leaves of Pn、Gs、Tr were higher when water retaining agent applied, while Ci was lower. In summary, we suggest that the method of ridge culture mulched by film be suitable for the Inner Mongolia Yinshan Mountain area. |
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