| Effects of different rotation patterns with multiple cropping rape on water consumption and yield of potato |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2021.02.18 |
| Key Words: potato multiple cropping rotation pattern forage rape soil moisture WUE yield |
| Author Name | Affiliation | | TAN Xuelian | Institute of Dryland Agriculture, Gansu Academy of Agricultural Sciences, Key Laboratory of Efficient Utilization of Water in Dry Farming, Lanzhou, Gansu 73007, China | | GUO Tianwen | Institute of Dryland Agriculture, Gansu Academy of Agricultural Sciences, Key Laboratory of Efficient Utilization of Water in Dry Farming, Lanzhou, Gansu 73007, China | | ZHANG Pingliang | Institute of Dryland Agriculture, Gansu Academy of Agricultural Sciences, Key Laboratory of Efficient Utilization of Water in Dry Farming, Lanzhou, Gansu 73007, China | | ZENG Jun | Institute of Dryland Agriculture, Gansu Academy of Agricultural Sciences, Key Laboratory of Efficient Utilization of Water in Dry Farming, Lanzhou, Gansu 73007, China | | LIU Xiaowei | Institute of Dryland Agriculture, Gansu Academy of Agricultural Sciences, Key Laboratory of Efficient Utilization of Water in Dry Farming, Lanzhou, Gansu 73007, China |
|
| Hits: 695 |
| Download times: 172 |
| Abstract: |
| In order to discover the effects of different rotation patterns with multiple cropping rape on water consumption characteristics and yield of potato, four treatments were selected in 2017 based on a long-term field experiment, including continuous potato cropping (CK), potato-wheat multiple cropping rape-potato rotation (WPRP), potato-pea multiple cropping rape-potato rotation (PPRP), and wheat-pea multiple cropping rape-potato rotation (WPPR). The water consumption characteristics, water use efficiency, and yield of potato were measured under different treatments. The results showed that the soil moisture content of CK in 160~200 cm was not significantly different between pre-sowing and the period from potato tuber growth to harvest, while soil moisture content of each layer in 0~200 cm depth of WPRP, PPRP, and WPPR was higher than pre-sowing. The average soil water content of each layer increased by 43.02%, 38.58%, and 24.63% at starch accumulation period and increased by 36.47%, 33.63%, and 21.43% at harvest period. The soil moisture content in 120~200 cm was shown as: WPRP>PPRP>WPPR>CK.In addition, the depth of water consumption and water storage for WPRP, PPRP, and WPPR treatments were greater than that of CK. Compared with CK, water consumption depth increased by 42.86%, 42.86%, and 42.86% and soil water storage increased by 10.36%, 12.91%, and 8.49%, respectively, at starch accumulation period. Compared with CK, water consumption depth increased by 25.00%, 12.50%, and 12.50%，respectively.Soil water storage increased by 12.56%, 6.78%, and 2.95%, respectively, at harvest period. The storage capacity of WPRP was 12.56% higher than that of CK. The water consumption of WPRP decreased by 16.2%, 25.2%, and 5.1% compared with CK at tuber formation, growth, and starch accumulation period, respectively. Compared to CK, the yield of WPRP, PPRP, and WPPR increased by 33.51%, 40.05%, and 14.47%, and water use efficiency increased by 54.83%, 52.32%, and 19.78%. Multiple rapeseeds in the potato rotation system increased the rainwater infiltration depth, the soil water storage, and water consumption depth of each growth stage, also increased the potato yield and WUE, whileit reduced the stage water consumption. In conclusion, the rotation of potato-wheat multiple cropping rapeseed-potato is the better planting mode in this arid area. |
|
|
|