ACTA AGRICULTURAE BOREALI-SINICA ›› 2020, Vol. 35 ›› Issue (5): 195-205. doi: 10.7668/hbnxb.20190936

Special Issue: Corn Soil fertilizer

• Resource and Environment·Plant Protection • Previous Articles     Next Articles

Effects of Mulching Methods on Soil Water and Temperature Characteristics and Yield of Spring Maize in Semi-humid Region of the Loess Plateau

DENG Haoliang1, ZHANG Hengjia1,2, LI Fuqiang2, XIAO Rang1, ZHOU Hong3, ZHANG Yongling1, WANG Yucai2, LI Xuan2, WU Keqian1, YU Haiying1   

  1. 1. College of Civil Engineering, Hexi University, Research Institute of Water Resources Protection and Utilization in Hexi Corridor, Zhangye 734000, China;
    2. College of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou 730070, China;
    3. College of Tourism, Northwest Normal University, Lanzhou 730070, China
  • Received:2020-06-04 Published:2020-10-28

Abstract: The objective of the present study was to understand the response of soil water and temperature characteristics of spring maize field to several planting patterns, and finally select the optimized planting pattern for semi-humid area of the Loess Plateau. A field experimental was carried out during the growing season of 2017-2018, in Zhujiapo Agricultural Technology Promotion Center, Huating City, Gansu Province, included 6 planting methods, with non-contoured seedbed without mulching (CK), non-contoured seedbed with film mulching (WM), non-contoured seedbed with half film mulching (HM), ridge-furrow with polyethylene film and straw mulching (MRM), ridge-furrow with fully film mulching (WRF) and ridge-furrow with straw mulching (SM) and their soil water content along 0-100 cm, soil temperature in 0-25 cm layer, crop yield and water use efficiency of spring maize were determined. The results showed that the mulching method significantly improved soil moisture situation from 0 to 40 cm depth both in sowing and seedling stages, of which could promote growth of maize in seedling period. The difference of soil temperature was mainly appeared in seedling stage, i.e. The average temperature and the minimum temperature of 5 cm with covered film mulching were markedly higher than CK with a ranged from 2.85 to 6.85℃, from 1.88 to 5.27℃, respectively. SM exhibited the ″cooling-increasing″ double effects that was the average temperature lower than CK 2.90-4.01℃, and the lowest temperature higher than CK 1.34-4.12℃. The film mulching method improved hydrothermal environment, yield and water use efficiency during the growth period with help of soil moisture holding and temperature increasing, especially for MRM, HM and WRF, the yield and water use efficiency increased by 32.96%, 19.69%, 17.12% and 33.52%, 18.59%, 18.66% in compared to CK, respectively. The mulching method can obvious improve soil hydrothermal environment, and eventually improve yield in the semi-humid areas of the Loess Plateau, particularly the MRM displayed better. Therefore, the ridge-furrow with film and straw mulching practice was a promising solution for spring maize in the semi-humid farming area of the Loess Plateau.

Key words: Spring maize, Planting methods, Ridge-furrow rainwater harvesting, Soil moisture and temperature, Yield, Loess Plateau

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Cite this article

DENG Haoliang, ZHANG Hengjia, LI Fuqiang, XIAO Rang, ZHOU Hong, ZHANG Yongling, WANG Yucai, LI Xuan, WU Keqian, YU Haiying. Effects of Mulching Methods on Soil Water and Temperature Characteristics and Yield of Spring Maize in Semi-humid Region of the Loess Plateau[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2020, 35(5): 195-205. doi: 10.7668/hbnxb.20190936.

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