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[1]MA Xueqin,WU Shufang,GUO Nini.Effects of Film Mulch on Soil Water Content and Temperature in Winter Wheat Field[J].Research of Soil and Water Conservation,2018,25(06):342-347.

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Effects of Film Mulch on Soil Water Content and Temperature in Winter Wheat Field

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 25 Number of periods: 2018 06 Page number: 342-347 Column: Public date: 2018-10-26

Title:: Effects of Film Mulch on Soil Water Content and Temperature in Winter Wheat Field

Author(s):: MA Xueqin¹, WU Shufang², GUO Nini²; 1. YangLing Vocational and Technical College, Yangling, Shaanxi 712100, China;
2. Institute of Water-Saving Agriculture in Arid Areas of China, Northwest A & F University, Yangling, Shaanxi 712100, China

Keywords:: different plastic mulch; winter wheat; soil water; soil temperature

CLC:: 157.4;S513

DOI:: -

Abstract:: In order to explore the effects of ridge and different plastic film mulch on soil water content and soil temperature, we studied soil moisture content and soil temperature in winter wheat field. Six treatments including flat plot without mulch(CK), ridge with plastic film mulch (DLR), flat plot with plastic film mulch (DPR), wide-narrow row ridge and furrow with plastic film-mulched (WLR), wide-narrow raw flat and furrow with film mulch (WPR), flat plot with plastic film mulch (PM) were set to measure soil moisture below the soil surface 200 cm and soil ground temperature at surface 5 cm,10 cm,15 cm,20 cm and 25 cm, respectively, using the water sensor of TRIME-TDR and ECH₂O. The results showed that: (1) compared with CK, the average amounts of soil water with the treatments of PM and WLR increased by 38.52% and 6.81% in the whole growth stage of winter wheat and the differences of water amounts in other treatments were not significant; during the period of abundant rainfall in April and May, the water contents of all mulch treatments decreased by 2%～12% compared with control treatment; compared with other treatments, the treatment of WLR significantly increased the amount of surface soil water during the drought; (2) rainfall had the significant effect on soil water and temperature under the condition of much, the soil water content under mulch was lower than no-mulch after rainfall; the surface temperature of soil decreased drastically and the temperature of the soil below 25 cm decreased slowly; (3) the daily temperature of soil changed with the depth of soil, which presented the cone-shape, the soil temperature was lagged with lag 0.8 h behind the air temperature while the soil depth increased by 5 cm between 5 cm and 25 cm, when it was dry due to little rainfall, wide ridges and furrows could significantly increase soil water storage and adjust soil temperature under the film.

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