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Effects of Straw Strip Covering on Yield and Water Use Efficiency of Potato cultivars with Different Maturities in Rain-Fed Area of Northwest China

Author

Listed:
  • Pengxia Liu

    (College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China)

  • Shouxi Chai

    (Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou 730070, China
    College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China)

  • Lei Chang

    (Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou 730070, China
    College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China)

  • Fengwei Zhang

    (College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China)

  • Wei Sun

    (College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China)

  • Hua Zhang

    (College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China)

  • Xiaolong Liu

    (College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China)

  • Hui Li

    (College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China)

Abstract

The strip mulch of corn straw planting technique is widely used in the Northwest rain-fed agricultural region of China due to the region’s good soil moisture-temperature properties. However, the hydrothermal properties and yield effects of this planting technique on different potato varieties are not clear. Therefore, a field experiment was conducted for two years (2015 and 2016) in the rain-fed area of Northwest China, to study the effects of different mulching treatments on the yield and water use efficiency (WUE) of potato with different maturation characteristics (potato varieties Longshu 7 and LK99). A split-plot experimental design was used. The experiment included corn straw strip flat cover planting (SMF), plastic film mulching (PMF), corn straw strip ditch mulching and ridge planting (SMFR), straw flat fully covered (SMWF), and uncovered and flat planting (CK). The results showed that straw mulch and plastic film mulch had significant effects on yield and WUE ( p < 0.05). Compared with CK, SMF significantly increased the yield by 3.75–63.17% in the late-maturing varieties, and increased the yield by 24.96–79.02% in the early-maturing varieties. Among the mulching treatments, compared with SMF, PMF made no significant difference in the yield and WUE between the late-maturing varieties in the normal year and the early-maturing varieties in the dry year, but the yield and WUE of the early-maturing varieties in the normal year significantly decreased by 17.25% and 18.44%, respectively, and the yield and WUE of the late-maturing varieties in the dry year significantly increased by 27.57% and 29.26% respectively. Compared with SMF, SMFR reduced yield by 1.44–13.62%; SMWF decreased the yield of late-maturing varieties by 25.94% ( p < 0.05), and WUE decreased by 7.65–23.44% ( p < 0.05). It can be seen that under this experimental condition, SMF is more suitable for early-maturing varieties and PMF is more suitable for late-maturing varieties.

Suggested Citation

  • Pengxia Liu & Shouxi Chai & Lei Chang & Fengwei Zhang & Wei Sun & Hua Zhang & Xiaolong Liu & Hui Li, 2023. "Effects of Straw Strip Covering on Yield and Water Use Efficiency of Potato cultivars with Different Maturities in Rain-Fed Area of Northwest China," Agriculture, MDPI, vol. 13(2), pages 1-19, February.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:2:p:402-:d:1062568
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    References listed on IDEAS

    as
    1. Chen, Yuzhang & Chai, Shouxi & Tian, Huihui & Chai, Yuwei & Li, Yawei & Chang, Lei & Cheng, Hongbo, 2019. "Straw strips mulch on furrows improves water use efficiency and yield of potato in a rainfed semiarid area," Agricultural Water Management, Elsevier, vol. 211(C), pages 142-151.
    2. Li, Rong & Hou, Xianqing & Jia, Zhikuan & Han, Qingfang & Ren, Xiaolong & Yang, Baoping, 2013. "Effects on soil temperature, moisture, and maize yield of cultivation with ridge and furrow mulching in the rainfed area of the Loess Plateau, China," Agricultural Water Management, Elsevier, vol. 116(C), pages 101-109.
    3. Feng, Yu & Hao, Weiping & Gao, Lili & Li, Haoru & Gong, Daozhi & Cui, Ningbo, 2019. "Comparison of maize water consumption at different scales between mulched and non-mulched croplands," Agricultural Water Management, Elsevier, vol. 216(C), pages 315-324.
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