Soil nutrient tester analysis of nutrient content in different soil layers

In the past, people's research mainly focused on the transfer of soil particles to soil erosion. However, with the continuous development and progress of research, it has become increasingly recognized that soil erosion will also cause environmental pollution and economic losses. For example, serious loss will result. Increasing the amount of fertilizers will in turn lead to eutrophication of the water body, and this understanding has led to the development and attention of research. At present, the development of scientific and technological instruments is also an important role in many researches. Select an experiment to establish different water and soil conservation forests by using the soil nutrient tester for measurement and analysis.

The soil samples and the soil nutrient tester were used to measure the collected soil samples. After being air-dried, deagglomerated, ground, and sieved through 1 mm and 0.25 mm, the soil pH was measured by conventional method (potentiometric method, water to soil ratio was 1: 2.5), Organic matter (dilution heat - Potassium dichromate volumetric method), All N (Kaishi method), Effective P (hydrochloric acid-ammonium fluoride-molybdenum cerium anti-comparison method) and K (ammonium acetate-flame photometric method) ).

A comparative study of its protective effect on soil nutrients was conducted in order to screen out the best soil and water conservation forests and configuration models for preventing and controlling soil erosion and soil nutrient loss, so as to facilitate popularization and application. Analysis of variance of soil nutrients in artificial soil and water conservation forest with four different configuration models . In order to understand the protective effect of four different types of artificial soil and water conservation forests on soil nutrients, the variance analysis of soil nutrient content was conducted. In the first method, assuming that the original nutrient contents of the four plantation plots under study are the same, the soil nutrient data collected over many years by the soil nutrient tester is used as single-factor analysis of variance and analysis of variance.

The variance analysis of soil nutrient content in different soil layers measured by soil nutrient tester, multiple comparisons, and comparison of coefficient of variation of the first principal component show that the soil nutrients in different forests are highly sensitive and stable in surface soil samples. Due to the strong correlation between soil nutrients, principal component analysis was performed in order to avoid the reuse of some potential information analysis and to have a comprehensive, comprehensive, and consistent understanding of the soil nutrient tester for the study subjects.

One light keel forming machine can produce many sizes of purlin .
The line mainly consist of uncoiler , coil sheet guiding device, main roll forming, hydraulic punching, PLC controlling system, servo tracking cutting and support table .

It deepends on its model, specifications and using, it can be divided into T - ceiling shape, stud and track, omega shape and angle shape. 

Specifications:

Matching material	Galvanized coils, Pre-painted coils, Aliminum coils
Matetial thickness range	0.3-0.8mm
Rollers	15+7 rows
Material of rollers	45# steel with chromed
Shaft diameter and material	75mm, 40Cr
Forming speed	0-45m/min(without punching)
Way of cutting	Servo tracking cutting
Material of cutting blade	Cr12 mould steel with quenched treatment
Controlling system	Mitsubishi PLC
Main motor power	15KW
Hydraulic station power	5.5KW
Voltage	380V/3Phase/50Hz or as customer's request

Working process:

Decoiler - Feeding guide - Straightening - Main roll forming machine - PLC control - Hydraulic punching - Servo tracking cutting - Collection table

Pictures for machine:

 

Training and Installation :
1. We offer installation service local in paid, reasonable charge. 
2. QT test is welcome and professional.
3. manual and using guide is optional if no visiting and no installation. 

Certification and after service:
1. Match the technology standard, ISO producing certification 
2. CE certification 
3. 12 months warranty since the delivery. Board. 

Our advantages:
1. Short delivery period. 
2. Effective communication 
3. Interface customized. 

Light Keel Roll Forming Machine

Light Keel Roll Forming Machine,Stud Light Keel Forming Machine,Track Light Keel Forming Machine,Omega Light Keel Forming Machine

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