Abstract：In order to further explore the influence of different coating widths on soil moisture and soil temperature of cotton, the soil temperature at 0-25cm and the soil moisture at 0-100cm were measured for the two growing widths of cotton. The results show that the super wide film (2.05m) is narrow (1.4m) effect is more significant; the trend of the diurnal variation of soil temperature under the condition of different width of film is similar to that of the 5cm soil surface temperature was affected by atmospheric temperature, and lag effect weakened with the increase in soil depth. At the late growth stage of cotton, the average temperature of 5-25cm soil was very narrow and the membrane width was 0.1-1.1. Soil moisture content is negatively correlated with soil temperature at different growth stages of 25cm, and when soil moisture content is low, soil temperature is high, under the condition of super wide membrane, the correlation was higher than that of the narrow membrane. The super wide membrane mulching improved the water and heat conditions of the soil, and accelerated the growth and development of crops. For the cotton planting in the North Xinjiang, the use of super wide film mulching has a yield increase of 13.7% per hectare. The research results can provide a scientific basis for cotton production in North Xinjiang.
Key words
cotton /
soil temperature /
soil moisture /
covering film width
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