In the past, people's research mainly focused on soil particle transfer changes in soil erosion, but with the continuous development and progress of research, it is gradually realized that soil erosion will cause environmental pollution and economic losses, such as serious loss. The increase in the amount of fertilizer will lead to the eutrophication of water bodies, and this understanding brings about the development and attention of research. At present, the development of scientific and technological instruments is also an important role in many studies. Selecting an experimental site to establish different soil and water conservation forests by using the soil nutrient rapid tester.
Soil sample treatment and soil nutrient rapid tester
The collected soil samples are air-dried, decontaminated, ground, and after 1 mm and 0.25 mm sieves, the soil pH value (potential method, water-soil ratio 1:2.5) and organic matter (diluted heat-heavy chromium) are determined by conventional measurement methods. Potassium acid capacity method), all N (Kelvin method), effective P (hydrochloric acid-ammonium fluoride-molybdenum anti-colorimetric method) and quick-acting K (ammonium acetate-flame photometry).
The protective effects of soil nutrients were compared in order to screen out the best soil and water conservation forests and allocation patterns to prevent soil erosion and soil nutrient loss, so as to promote the application. Analysis of variance of soil nutrients in artificial soil and water conservation forests in four different configurations. In order to understand the protective effects of different configurations of four different ages of artificial soil and water conservation forests on soil nutrients, the variance analysis of soil nutrient content was carried out. In the first method, assuming that the original nutrient contents of the four plantation plots were the same, the soil nutrient data of the soil nutrient rapid tester was used for single factor analysis of variance and variance analysis.
The variance analysis, multiple comparisons and the comparison of the first principal component coefficients of different soil nutrient contents measured by soil nutrient rapid tester show that the soil nutrients in different forests have higher sensitivity and stability of surface mixed soil samples. Because of the strong correlation between soil nutrients, in order to avoid the reuse of some potential information analysis, and for the soil nutrient rapid tester to have a comprehensive, comprehensive and consistent understanding of the subject, Principal Component Analysis.
In a hydroponic system, plants are placed in nutrient-enriched water. Mediums such as gravels, sand or vermiculite can also be used. Thus plants which are placed in the water absorb the nutrients very easly. When the nutrients from the water starts finishing , water is recycled or additional nutrients are added.
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