Due to the randomness of the manual measurements, the comparison between the manual observations and the automatic observation data of the soil moisture real-time monitoring system can only serve as a reference and cannot be completely consistent. However, from the perspective of long-term data applications, soil moisture monitoring based on automatic soil moisture stations and drought prediction models are convenient and stable, and the trend of reaction water changes is more continuous.
Combined with the real-time monitoring system of soil moisture to study the water requirements of maize crops and the results of continuous drought response, we first consider the calculation of root water consumption at different growth stages. According to different data, we divide the field water volume changes into four different periods: before and after spring planting From the end of the three-leaf stage, the end of the three-leaf stage to the beginning of the jointing stage, the beginning of the jointing stage to the end of the silking stage, the end of the silking stage to the full-maturity stage, the following no-rainfall curve and the beginning of the jointing period to the end of the silking period from the sowing of corn to the end of the three-leaf stage. The precipitation increase curve is an example.
The real-time soil moisture monitoring system can calculate the daily amount of loss under different conditions (the conversion part of the rainy period is omitted, and only the loss under no-rain conditions is calculated). According to the group statistics of the different periods of corn growth, the soil moisture change trend during the four periods without rainfall was calculated, and the daily loss amount was calculated. Then statistically use the typical different growth period, draw the forecast relation line with the data of daily loss without rainfall, and make a trend line.
Expanded metal grating
Expanded metal gratings have mainly two types: light and heavy type.
Materials for expanded metal gratings:
Aluminum, carbon steel, stainless steel and other metals.
Grating Patterns:
Diamond, triangle, scale hole, etc.
Specification: thickness:0.5mm-8mm
Hole width: 2.5mm-50mm
Hole length: 4.5mm-100mm
Openness: 0.5mm-8mm
Features:
Expanded metal grating offers many advantages over bar grating. It is made of one continuous piece of material yielding a greater strength to weight ratio. There are no welded parts and the surface is naturally skid proof without further processing. The pattern and openings provides a wider range of load capacity gratings to meet your exact requirements giving greater economy to your project.
Expanded metal grating is the most practical and economical way to assure strength, safety, and a non-skid surface, .Expanded metal grating is ideal for use on plant runways, working platforms, and catwalks as it is easily cut into irregular shapes and can be installed quickly by welding or bolting.
This metal grating offers ease of fabrication, economy, strength, safety and are available in carbon steel , stainless steel and aluminum.
Application:
As fences for walkway, tread plates, stair protection:
Walkways
Stairways
Catwalks
Platforms
Concrete reinforcement
Flooring
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