Soil pH Level Meter Tester for Plants Crops Flowers Vegetable
Acidity Moisture PH Measurement Garden Tools MAPH-010
Features:
Battery is no need.
Could test soil pH soil fertility
Suggest to use indoors or outdoors
convenient to use, simple to operate, solid quality
Accurate results
Specifications:
Material: Plastic
Soil PH Measurement Range: 2.5 - 10.0 pH
Accuracy: ±0.25 pH(20℃)±0.2 pH (Suitable for farm or education
experiments)
Working Temperature: 0 - 50°C(32-122°F)
Calibration: Manual point 1
Measurements: About 11cm/4.33" X 6cm/2.36"
Length of Probe: 16cm
Notes:
1. Soil pH value is a very important factor for the quality of
crops.
2. Most of crops cannot survive in too acid or too alkaline soil.
3. Get the right pH reading for your Crop is very important.
Using Method:
1. Measuring soil pH, as far as possible to probe deeply into the
earth and probe the upper portion for about 1 cm.
2. On the table is 2.5-9 numerical, numerical 7 basic is neutral,
the smaller the number shows that the greater the acidity, please
adjust soil pH value according to plant varieties.
4. Please pay attention that insert electrodes without touching the
stone, not too hard, otherwise easy to damage the electrode, clean
electrode after use.
Soil pH
Soil pH, also known as "soil reaction." It is the soil solution of
the acid-base reaction.
Mainly depends on the concentration of hydrogen ions in the soil
solution at pH values. pH of
the solution is equal to 7 neutral solution; pH of less than 7, the
acid reaction; pH value greater
than 7 is alkaline reaction. Soil pH can generally be divided into
the following levels:
pH of soil pH
<4.5 strong acidic
4.5-5.5 strongly acidic
5.5-6.5 Acid
6.5-7.5 neutral
7.5-8.5 Alkaline
8.5-9.5 strongly alkaline
> 9.5 strong alkaline
Soil pH on soil fertility and a great influence on plant growth,
China's northwest, north many
soil pH value, pH value of small red soil. Therefore can be grown
and adapted to soil pH and
plant crops. Such as acid red soil area planted hi tea, and strong
alkali such as alfalfa. Soil pH
effects on nutrient availability is also great, such as neutral
soil phosphorus availability large;
alkaline soil trace elements (manganese, copper, zinc, etc.)
effectiveness is poor. In agricultural
production should be noted that the pH of the soil, and actively
take measures to adjust.
Common crop optimum soil pH range is how much?
Soil pH on plant nutrient availability, soil structural and crop
growth have a great relationship.
First, soil organic state by microbial nutrients to participate in
activities in order to make it
into nutrients for plant uptake of available state, while the
majority of microorganisms involved
in decomposition of organic matter in the near-neutral growth
environment, so the effective soil
nutrient in general close to neutral reaction is the best.
Secondly, structural soil pH also affects
the soil. Acidic soil, the hydrogen ion concentration, easy to
colloids leaching out calcium
substitution, it is easy to acidic soil compaction. The
substitution of the alkaline soil contains
large amounts of sodium ions and hydroxide ions, so that soil
particles dispersed, dry compaction,
resulting in poor structural earth. In addition, soil pH and plant
growth also has a very close
relationship. In nature, some plants on soil pH conditions
demanding that they can only be in a
particular pH range grow, these plants from the soil pH can be
indicative that, so called
indicator plants. Such as azalea only grow in acidic soils, known
acidic soil indicator plants;
Kashiwagi is calcareous soil indicator plants, and salsa is an
alkaline earth indicator plants.
Different cultivated plants have different optimum growth pH range
(see table below),
knowing their respective optimal growth range, we can according to
local conditions based on soil
pH, choose the right crops; or according to crop, adjust the soil
pH to the proper range.
