Drought is one of the key factors restricting agricultural production in arid and semi-arid regions of northwest China. Water stress is a serious problem that restricts agricultural production in dryland. Improving water use is the fundamental way to call for stable crop yield and high yield. Relevant experiments have proved that by covering plants and so on, it can increase the temperature and humidity of the soil and improve the utilization of water. Wheat is the main food crop in semi-arid and arid regions. The whole-film-covering technique is a rain-collecting and suppression method. The new technology of high-efficiency dry farming, which combines soil water evaporation, cost-saving and efficiency-enhancement, no-tillage and multi-planting, has greatly improved wheat yield and increased yield and yield. This paper uses soil temperature and humidity recorder to track soil temperature. Humidity changes to further understand the effects of different seeding forms on temperature and humidity.
There are 5 treatments, namely, full-film-covering (T1), full-film uncovered soil (T2), small ridge (T3), open field (T4) and open field (T5) (CK), with soil moisture and drought. The monitoring system performs the test.
Changes in soil temperature: Through the measurement of soil temperature during the growth period of winter wheat, the daily variation trend of soil temperature was the same, that is, the average ground temperature showed a trend of increasing first and then decreasing. Starting from 8:00, the temperature of each treatment gradually increased, and the temperature increased rapidly after 12:00. Among them, the whole film covered soil and the whole film did not cover the soil to reach the highest at 15:00, and the open field and small ridges reached the highest at 17:00. And then all showed a slow downward trend. Changes in soil moisture During the seedling stage, the soil water content in the treatments was significantly different due to the growth of plant growth. The soil moisture content of the whole membrane-covered soil was relatively high, and the change was small among different soil layers. With the promotion of winter wheat growth process, the soil water content of each treatment decreased sharply during the flowering period, and the soil water content of 0~60cm soil layer changed significantly between different levels. The soil moisture content of whole film without soil covering treatment was the highest. However, the variation between different soil layers is large, and the water content in the soil layer below 60 cm is significantly reduced, that is, the whole film is covered with soil.
The rational use of deep soil water is rational; the soil water content of the whole membrane covered soil is lower in the range of 0-60 cm, indicating that it uses more water during the flowering period.
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