Effects of Regulation of Orchard Productivity on Soil Moisture

Effects of Regulation of Orchard Productivity on Soil Moisture

The productivity of apple trees refers to the ability of apple trees to produce organic matter per unit area of ​​time. The productivity control technology, which uses sparse blossoms and fruit thinning as the main means, is a flower and fruit management technique that solves the problem of reasonable load and fruit distribution of fruit trees. It can regulate the relationship between growth and results, prevent and overcome years, improve fruit quality, and ensure the health of trees. One of the key measures to achieve high quality, stable production, and high efficiency. The change in productivity has a certain influence on the change of soil moisture.

Studies have shown that: at different levels of productivity, there are significant differences in the trend and content of soil moisture in the profile. There was a low value of soil water content in the control (Treatment I) and treatment II at 60 cm, while the trough values ​​of the other three treatment levels were not significant. Here, the control soil moisture content was 19.63%, while the treatment V moisture content reached 25.72. %, 31.02% more than the control, the difference reached a very significant level (p <0.01). Comparing the soil water content of the entire section, it can be seen that the soil moisture content at each level increases with the decrease in productivity, indicating that the fruit trees with high productivity not only consume a large amount of fruit root water, but also consume water at other levels. Fruit trees that are significantly lower than the productivity level. The determination of soil moisture can be carried out through a fixed-point monitoring system or a multi-parameter soil measuring instrument. The multi-parameter soil measuring instrument can not only measure soil moisture, but also can measure parameters such as soil temperature, atmospheric temperature, and atmospheric humidity. All are mutual influences and interactions. In addition, the wireless public opinion monitoring system is also an instrument that uses a lot more. The biggest feature of this instrument is to realize the wireless measurement of soil moisture. Because the wireless public opinion monitoring system contains a GPRS/GSM module, no data line is needed during data transmission. It will be able to complete the transmission of moisture data.

Comparing the difference of water storage in the 0C600cm soil, it can be seen that the regulation of productivity can significantly improve the soil moisture status. The maximum soil water storage within a 600cm soil volume can be increased by 15.41%; the soil water storage per meter is lower than that in the loess area. With an average water storage capacity of 250mm, the soil moisture content is poor, and the water supply regulation capacity of the soil water storage is drastically reduced, and the fruit tree growth gradually shifts to rely on precipitation to provide water. Comparing soil layers below 200 mm in soil water content, it can be seen that as the productivity level of fruit trees decreases, the range of water storage below 200 mm in the soil profile also gradually shrinks, and the consumption of deep water is gradually reduced. In the gully region of the Loess Plateau, due to low precipitation and deep groundwater level, the deep soil moisture will not be easily replenished once consumed. Therefore, reducing the consumption of deep soil moisture will help ensure the sustainable use of soil moisture and stable production of fruit trees.

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