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  • 种植土壤的检测
  • 本站编辑:四川华标测检测技术有限公司发布日期:2019-10-25 12:40 浏览次数:
种植土壤的检测项目有土壤溶液酸碱度、土壤溶液电导率、土壤有机质、土壤容量、土壤通气隙度、土壤浸入容量、有效土层、石灰反应、土壤质地等。
1.土壤溶液酸碱度:土壤溶液的酸碱程度,用氢离子浓度的负对数表示,即PH值=-log「H+」.
2.土壤溶液电导率:用于度量土壤中可溶性离子的总量,用EC值表示,单位为毫秒﹒厘米-1(mS﹒cm-1)。
3.土壤有机质:土壤中动物、植物残体微生物体及其分解和合成的有机物质,用克﹒千克表示(g﹒kg-1)。
4.土壤容量:土壤在自然结构状态下,单位体积内干土重,单位为兆克﹒立方米-3(M﹒gm-3)。
5.土壤通气隙度:土壤中直径大于0.1mm了孔隙,占总孔隙的比例,用百分率(%)表示,这类孔隙没有毛管作用,充满空气,称非毛管孔隙,也称通气孔隙。
6.土壤浸入容量:土壤在田间最大持水量状态下,单位体积内的湿土重,单位为兆克﹒立方米-3(M﹒gm-3)。
7.有效土层:能提供植物根系正常生长发育的土壤厚度,单位为厘米(cm)。
8.石灰反应:用80~100 g﹒kg-1盐酸与土壤中碳酸盐起中和反应引起泡沫的强弱程度,用无(0)、弱(<10 g﹒kg-1)\k (10~50 g﹒kg-1)强(>50 g﹒kg-1)表示。
9.土壤质地:对土壤中不同粗细的土粒(粘粒、粉沙粒、沙粒)组成比例综合度量,称为土壤质地。

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The testing projects for planted soil include soil solution pH, soil solution conductivity, soil organic matter, soil capacity, soil porosity, soil immersion capacity, effective soil layer, lime reaction, and soil texture.
1. Soil solution pH: The acid-base degree of the soil solution is represented by the negative logarithm of the hydrogen ion concentration, IE the PH value =-log <UNK> H + ".
2. Soil solution conductivity: Used to measure the total amount of soluble ions in the soil, expressed in EC values, in milliseconds. cm-1(mS. cm-1).
3. Soil organic matter: animal and plant residues in the soil and their decomposition and synthesis of organic substances, expressed in grams. kg(g. kg-1).
4. Soil capacity: Soil in the state of natural structure, dry soil weight per unit volume, unit of megagram. cubic meters -3(M. gm-3).
5. Soil porosity: porosity in the soil greater than 0.1 mm in diameter, accounting for the proportion of total porosity, expressed in percentage(%), such porosity has no capillary effect and is full of air. It is called non-capillary porosity, also known as ventilation porosity.
6. Soil immersion capacity: Soil in the maximum water holding state in the field, the wet soil weight per unit volume, in Meg. cubic meters -3(M. gm-3).
7. Effective soil layer: Soil thickness that can provide normal growth and development of plant roots in centimeters(cm).
8. Lime reaction: The degree to which the neutralization reaction with carbonate in the soil with 80 to 100 g. kg-1 hydrochloric acid causes foam, no(0), weak(<; 10 g. kg-1) \ K(10 ~ 50 g. kg-1) strong(& GT; 50 g. kg-1) indicates.
9. Soil texture: A comprehensive measure of the composition of soil grains(sticky grains, powder grains, sand grains) of different thicknesses in the soil is called soil texture.
Today, Bai Bai safety net small editor to plant what the content of soil testing, please also pay attention to the site more soil pollution safety knowledge, hope to help you.

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