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Water-soluble fertilizer is an efficient modern farm input designed for water and fertilizer integrated agriculture. Featuring full water solubility, high absorption rate, water saving and labor saving, it is widely used in commercial crop planting and protected agriculture. Many growers confuse water-soluble fertilizer with flush fertilization and lack standardized knowledge of its types, application methods and precautions. This article systematically introduces the core knowledge of water-soluble fertilizer, helping farmers apply fertilizer scientifically to improve crop quality and yield.

Ammonium chloride is cost-effective quick-acting nitrogen fertilizer widely used in farmland. However, ammonium chloride contains high chloride ions, so applying ammonium chloride on saline-alkali land will easily aggravate soil salinization. This paper analyzes why ammonium chloride is prohibited on saline-alkali land, defines applicable soil and crops for ammonium chloride, and provides standard application methods and taboos of ammonium chloride.

Many farmers and consumers misunderstand chemical fertilizers, viewing them as harmful to soil and produce, while wrongly thinking organic farming requires zero chemical inputs. In truth, properly applied chemical fertilizers underpin stable, high-yield modern agriculture and safeguard global food supplies. Key products including ammonium sulfate, ammonium chloride, calcium ammonium nitrate, magnesium sulfate, calcium magnesium granules, blended fertilizer and water-soluble fertilizer enable precision farming. This guide compares organic and chemical fertilizers, outlines sustainable fertilization strategies and helps growers balance crop productivity with ecological protection.

Low soil temperature in greenhouses weakens root absorption. Improper fertigation easily causes salt accumulation and root burn. This article introduces standardized fertigation methods to control soil salt and protect root systems.

Many growers often confuse calcium ammonium nitrate with conventional ammonium nitrogen fertilizer and regard it as an ordinary single nitrogen fertilizer. In fact, calcium ammonium nitrate is a new type of compound fertilizer that provides both nitrogen and fast-acting calcium. It contains dual nitrogen forms including nitrate nitrogen and ammonium nitrogen, as well as water-soluble calcium, delivering multiple benefits such as rapid nitrogen supplementation, soil improvement, disease resistance and quality enhancement. Compared with single ammonium nitrogen fertilizer, it features wider application scenarios, safer fertilization performance and higher nutrient absorption efficiency. To help farmers clarify fertilizer attributes and apply fertilizers scientifically, this article elaborates on the core characteristics, unique advantages, essential differences and applicable usage scenarios of calcium ammonium nitrate.

Tea and blueberries require acidic soil. Alkalization leads to leaf chlorosis and poor growth. Ammonium sulfate is physiologically acidic, supplying nitrogen and sulfur while adjusting soil pH. This article introduces its usage, dosage and notes.