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Visit store Items for sale About us Product Details Product Feature: 1. Using high-quality materials, the quality is guaranteed 2. Durable and long life 3. Soil pH Also known as "soil reaction". It is the acid-base reaction of the soil solution 4. Accurate measurement 5. Wide range of applications Parameter: Body size: 11*6*3CM Probe length: 16cm Instructions for use: When measuring soil pH, first insert the probe into the soil as deep as possible, leaving about 1 cm above the probe. When using, be careful not to touch the stone when inserting the electrode, and do not use too much force, otherwise it will easily damage the electrode. Wash the electrode after use. Soil pH Soil pH is also known as "soil reaction". It is the acid-base reaction of the soil solution. It mainly depends on the concentration of hydrogen ions in the soil solution, expressed as pH. A solution with a pH value of 7 is a neutral solution; a pH value less than 7 is an acidic reaction; a pH value greater than 7 is an alkaline reaction. Soil pH can generally be divided into the following levels: pH Soil pH <4.5 Very strong acid 4.5—5.5 Strong acid 5.5—6.5 Acidity 6.5—7.5 Neutral 7.5—8.5 Alkaline 8.5—9.5 Strong alkaline ＞9.5 Very strong alkaline Soil pH has a great influence on soil fertility and plant growth. Many soils in northwest and north of my country have a high pH value, while the pH value of red soil in the south is low. Therefore, crops and plants that are compatible with the pH of the soil can be grown. For example, in red soil areas, acid-loving tea trees can be planted, and alfalfa has strong alkali resistance. Soil pH also has a great influence on the availability of nutrients. For example, the availability of phosphorus in neutral soil is large; the availability of trace elements (manganese, copper, zinc, etc.) in alkaline soil is poor. In agricultural production, attention should be paid to the pH of the soil, and measures should be taken to adjust it. What is the optimum soil pH range for common crops? Soil pH has a lot to do with plant nutrient availability, soil structure, and crop growth. First of all, the organic nutrients in the soil can only be converted into fast-acting nutrients for plants to absorb through the participation of soil microorganisms, and most of the microorganisms involved in the decomposition of organic matter grow and develop in a near-neutral environment, so the effective efficiency of soil nutrients Sex is generally best when it is close to a neutral response. Second, soil pH also affects soil structure. In acidic soil, the concentration of hydrogen ions is large, and it is easy to replace calcium ions in the colloid and leaching out, so the acidic soil is easy to harden. Alkaline soil contains a large amount of replaceable sodium ions and hydroxide ions, which make soil particles dispersed and harden after drying, resulting in poor structure of alkaline soil. In addition, soil pH is also closely related to plant growth. In nature, some plants have strict requirements on soil acid and alkali conditions. They can only grow within a specific acid and alkali range. These plants can play an indicator role for soil acidity and alkalinity, so they are called indicator plants. For example, azalea only grows on acidic soil, and it is called the indicator plant of acidic soil; cypress is the indicator plant of calcareous soil, and Suaeda salsa is the indicator plant of alkaline soil. Different cultivated plants also have different pH ranges that are most suitable for growth (see the table below). Knowing their respective optimal growth ranges, we can choose suitable crops according to the soil pH according to local conditions; or adjust the soil according to the crops. pH to the appropriate range. Soil pH for optimal growth of major crops Crop name pH Crop name pH Crop name pH Rice 6.0-7.0 Peanut 5.0-6.0 Chestnut 5.0-6.0 Wheat 6.0-7.0 Tobacco 5.0-6.0 Watermelon 6.0-7.0 Corn 6.0-7.0 Tea 5.0-5.5 Cabbage 6.0-7.0 Soybean 6.0-7.0 Potato 4.8-5.4 Tomato 6.0-7.0 Sugarcane 6.0-8.0 Orange, mandarin 5.0-7.0 Pumpkin 6.0-8.0 Sweet potato 6.0-6.0 Lychee 6.0-7.0 Cucumber 6.0-8.0 Package list: Split Soil Tester* 1 Payment Method Shipping Policy Returns & Refund Policy Feedback Payment Method EBAY Managed Payment. But we only Accept your Ebay Address , please Make sure it's 100% right. Payment must be received in 5 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order. Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched. Shipping Policy 1. We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand. 2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders. 3. All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund. Returns & Refund Policy All package need to wait 30 days (US only n eed 7-10 days) , Please take care it.Less than 30 days,we can't take a refund . If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please keep in touch with us and double check the return address before you return it. If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item. Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you keep in touch with us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.