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In order to ensure that there is no water deficit in jujube trees, the soil moisture of jujube trees needs to be in a relatively balanced state, so that the soil water added by irrigation and the soil water consumed by transpiration evaporation basically reach an equilibrium state. After irrigating, the increment rate of the soil moisture meter was 16.6%. The rate of increase was greater than the rate of decline, indicating that irrigation satisfies the need for soil moisture to subside, and soil water surplus is 6.52%. It shows that the soil moisture in the jujube growing areas is surplus, and there is no water deficit.
Jujube trees began to recover in April and entered the bud growth stage in mid-May to mid-June. The flowering stage began in mid-June-July, and the fruit setting period in August and the ripening period of red jujube in the middle of September to October. The total extinction rate of soil moisture was 74.58%, and the total increase rate of soil moisture by irrigation was 77.34%. The average increase of soil moisture was 15.5% after one irrigation. The soil moisture of the jujube tree in the growing season was in balance, and the water surplus was 2.76%. No water deficit occurred.
The role of irrigation is to provide adequate soil moisture for crop growth. When the irrigation is finished, the water is stored in the root soil layer of the crop, and the soil water is a gradually depleting process under the effects of plant transpiration and soil evaporation. Therefore, soil moisture analyzer analysis of the process of regression of soil moisture, to master the law of regression of soil moisture, for the scientific development of irrigation systems, has an important guiding role.
Analysis of Irrigation Dates by Soil Moisture Analyzer
In the case of low base soil moisture content before irrigation, root irrigation has a greater effect on increasing soil moisture content; soil moisture analyzer found that in the case of a high soil moisture base, or in the absence of obvious water shortage in the soil. In the case of irrigating, it has a limited effect on increasing soil moisture content. Therefore, in actual irrigation, real-time monitoring of soil moisture content by the soil moisture analyzer, mastering the deficit state of soil moisture, and timely irrigation in an appropriate amount, improve irrigation efficiency, increase the effective utilization of irrigation water, and improve the irrigation of soil. The role of water in compensating losses has a very important significance.