What are the precautions for the difference between acid fertilizer and alkaline fertilizer?
Fertilizers and soils have the same acidity and alkalinity. Targeted application of acid-base fertilizers can not only reduce the loss of fertilizers, but also improve nutrient utilization and increase land output. Why is there a difference between acid and alkali? The soil is acidic and alkaline because the soil solution contains hydrogen ions and hydroxide ions. When the hydrogen ion is more than the hydroxide ion, the soil is acidic, and vice versa, the two are quite neutral. Similarly, when the fertilizer is applied to the soil, anions and cations are generated. Since the amount of anions and cations absorbed by the crop is not equal, when the plant absorbs more cations than the anion, the fertilizer which makes the soil acidic is called a physiological acid fertilizer; When a plant absorbs more anions than a cation, the fertilizer that makes the soil alkaline is called a physiological alkaline fertilizer; when the amount of anion and cations absorbed by the plant is equivalent, the soil does not significantly retain some ions, and has no effect on the pH of the soil. It is a physiological neutral fertilizer. What is the impact of pH? The pH of the soil can directly affect the availability of nutrients in the soil, and can also affect the microbial activity, indirectly affecting soil nutrient utilization and turnover. In acidic soils, available phosphorus easily forms iron phosphate and aluminum phosphate with iron and aluminum, which reduces the effectiveness. Exchangeable potassium, calcium, magnesium, etc. in the soil are easily replaced by hydrogen ions, and are easily lost with water. In alkaline soils, phosphorus easily combines with calcium to form poorly soluble calcium phosphate salts, which reduces the effectiveness of phosphorus. The effectiveness of many trace elements such as boron, manganese and molybdenum is greatly reduced, leading to crop deficiency. , a physiological disease occurs. How to use acid and alkaline fertilizer The type of fertilizer is generally selected according to the acidity and alkalinity of the soil and the sensitivity of the crop to pH. Oysters, sunflowers, beets, etc. are more resistant to alkali; while oats, buckwheat, potatoes, sweet potatoes, etc. are more resistant to acids. Nutrients are usually most effective under neutral conditions, so follow the rules for applying acidic fertilizers to alkaline soils and alkaline fertilizers for acidic soils. Acidic soil should use physiological alkaline fertilizers, such as sodium nitrate, potassium nitrate, nitro compound fertilizer, combined with organic fertilizer and lime, to reduce the effect of soil acidification; alkaline soil should use physiological acid fertilizer, such as ammonium sulfate Ammonium chloride, etc., but it is not advisable to apply ammonium chloride and sodium nitrate for salinity to avoid the harm caused by excessive sodium ions and chloride ions. This article URL: What are the precautions in the difference between acid fertilizer and alkaline fertilizer? Anti-Allergic Agents,Chlorphenamine Tablets 4Mg NOUVASANT GROUP LTD. , https://www.nouvasant.com