High soil pH meter precision farming 0.2PH value detector moisture meter ks0 ..

Hangzhou Lu Hengsheng Technology Co., Ltd. is a research and development, production, marketing and related reagents water quality testing equipment business, based in Zhejiang University Huajiachi, has four-set. We have been in China water testing industry leader, our aim is to provide customers the most efficient, fastest, most affordable and most convenient testing services! K05 / 06-type soil pH meter main technical parameters: PH detection range: 3-8PH Humidity range: 10% -80% accuracy: -0.2- + 0.2PH Specifications: 50.5 * 300mm Weight: 115g Ambient temperature: 5-50 degrees measuring depth: 2-30cm soil pH, also known as "soil reaction." It is acid-base reaction of soil solution. Depending on the concentration of hydrogen ions in the soil solution to pH values. solution of pH = 7 neutral solution; pH value of less than 7, the reaction is acidic; pH greater than 7 is alkaline reaction. Soil pH can generally be divided into the following stage follows: pH soil pH <4.5 highly acidic acidity 6.5-7.5 5.5-6.5 4.5-5.5 strongly acidic neutral alkaline 8.5-9.5 7.5-8.5 strongly alkaline> 9.5 highly alkaline soil pH on soil fertility and plant growth is large, northwest China, north many large soil pH, pH Southern Red small value. Planting and soil pH can be adapted to crops and plants. Such as acid red soil area planted hi tea, and alfalfa strong alkali ability. The effectiveness of soil pH on nutrient is also great, as great effectiveness neutral soil phosphorus; alkaline soil trace elements (manganese, copper, zinc, etc.) poor effectiveness. In agricultural production should be noted that soil pH, and actively take measures to adjust. Common crop optimal soil pH range? Soil pH effectiveness of plant nutrients, soil structural and crop have a great relationship. First, the soil nutrient organic state by soil microbial activities to participate in, to make it into nutrients available for plant uptake state, decomposition of organic matter and microorganisms involved in the majority of growth in the near neutral environment, soil nutrients valid of generally near neutral reaction is the best. Secondly, the soil pH on soil structure is also affected. Acidic soils, the hydrogen ion concentration, easy to colloidal calcium ion substitution leaching out, it is easy to acidic soil compaction. And alkaline soils with high exchangeable sodium ions and hydroxide ions, so that the soil particles dispersed, dry compaction, resulting in poor structural earth. In addition, soil pH and plant growth also has a very close relationship. Nature, some plants on soil pH conditions are strict requirements, they can only in a particular pH range of growth, these plants can play its indication that the soil pH, so that indicator plants. Such as azalea grow only in acidic soils, acidic soils called indicator plants; cedar calcareous soil indicator plants, and S. salsa is alkaline indicator plants. Different cultivated plants have different optimum growth pH range (see table below), know their respective optimal growth range, we can according to local conditions based on soil pH, select the appropriate planting of crops; or according to crop, adjust the soil pH to the proper range. The main crop grown in soil pH optimum pH crop crop name name name pH pH rice crop chestnut 5.0-6.0 6.0-7.0 5.0-6.0 wheat peanut tobacco 5.0-6.0 6.0-7.0 6.0-7.0 watermelon tea corn 6.0-7.0 5.0-5.5 cabbage Soybean potato 4.8-5.4 6.0-7.0 6.0-7.0 6.0-7.0 cane 6.0-8.0 orange tomato, pumpkin orange 5.0-7.0 6.0-8.0 6.0-7.0 cucumber sweet lychee 6.0-6.0 6.0-8.0 This product also can measure soil moisture values Soil moisture: indicates a certain degree of depth of soil moisture soil physical. Also known as soil moisture content. Subject to the level of soil moisture of farmland water balance for each component. Water supply conditions determine soil moisture crops. Soil humidity is too low, the formation of soil drought, the role of photosynthesis can not be normal, lower crop yield and quality; and severe water shortages lead to crops wither and die. Soil moisture is too high, deterioration of soil aeration, soil microbial activity, the crop root breathing, growth and other life activities hampered, thus affecting the normal growth of aboveground crop, resulting in excessive growth, lodging, breeding and other diseases. How much soil moisture also affects the field tillage practices and planting quality, and soil temperature level. Hangzhou Lu Hengsheng matter to provide a comprehensive wastewater discharge standards, sewage discharge standards, urban sewage treatment plant emission standards, pollutant discharge standards plating, printing and dyeing wastewater discharge standards, hospital sewage discharge standards, emissions standards inquiry Hangzhou Lu Hengsheng matter production and sales The main products are: 1. Electrochemical Series: Industrial PH meter, conductivity meter, ORP meter, TDS meter; 2. Water test series: hydrogen peroxide strips, peracetic acid residues strip, strip chlorine, ammonia test strips, Asia nitrate test strips, chlorine test kit, ozone detection kit, water hardness kits, TP kit kit ammonia, heavy metals test kit, COD cuvette, cuvette cyanide, heavy metals cuvette; 3 . refractometers series: sugar meter, salinity meter, cutting fluids, freezing instrument; 4. Water detector series: chlorine detector, ozone detector, ammonia detector, total phosphorus detector, heavy metal detector; 5. Agents import brand: Hach HACH paper, the British import paper agent, Finland Biohit pipettes.