Effect of Soil Moisture on Leaf of Euonymus japonicus As a landscaping material, Euonymus japonicus can not ignore its ornamental quality while controlling its growth. Soil moisture is the main factor that promotes the growth of Euonymus japonicus. The adequacy of water is related to the growth rate of the plants. The multi-point soil temperature and humidity recorder can directly monitor the change of soil moisture, and at the best speed, the soil moisture. Make adjustments. The effect of moisture on leaf shedding of Euonymus japonicus: leaf shedding is a common response strategy when plants are subjected to drought stress. The effect of moisture on leaf shedding of Euonymus japonicus was divided by moderate stress. There were two kinds of situations. One of them was mild stress and almost no effect on leaf shedding. Under moderate stress, leaf had shedding phenomenon, and the stress increased, shedding number decreased. However, the number of leaf shedding was generally small. The average number of shedding at the 8th week was 3.4. The second shedding phenomenon was severe leaf shedding. The shedding number was nearly twice that of moderate stress. There was also a significant difference in the number of leaf shedding at each stage of the two processes. Through daily observation, under heavy stress, there was more leaf shedding of Euonymus japonicus, especially to the late period of stress, the plants were paralyzed to death, and the leaves were scarce, which was not conducive to ornamental. If the plants were planted as ground, they could not cover the loess. Although the moderate stress leaves have fallen off, they are basically in balance with the newly-developed leaves, which has little effect on their ornamental value. From the above analysis, we can see that soil moisture within a certain range, will not affect the growth of Euonymus japonicus, but if the water stress reaches a certain level, it will make Euonymus japonica leaves off, affecting ornamental. Therefore, we need to use a multi-point soil temperature and humidity recorder to keep abreast of soil moisture conditions. Plastic additives are the compounds which must be added to improve its
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