27/03/2026
https://www.rzxzfert.com/news/a-new-high-efficiency-dual-effect-nitrogen-fertilizer-ammonium-sulphate-nitrate-empowers-modern-agriculture-to-improve-quality-and-efficiency/
Against the trend of intensive and green development of modern agriculture, the upgrading and iteration of fertilizer products have become a core link in ensuring food security and improving the quality of agricultural products. As a new type of compound nitrogen fertilizer modified through advanced processes, ammonium sulphate nitrate has gradually become the preferred fertilizer for the cultivation of field crops and cash crops by virtue of its balanced nutrient ratio, stable physical and chemical properties and wide application scenarios. It has solved the pain points of traditional single nitrogen fertilizers such as single nutrition, limited application, high storage and transportation risks, and provided strong support for improving the quality and efficiency of agricultural production and helping farmers reduce costs and increase income.
Core Product Introduction: A Modified Nitrogen Fertilizer with Dual Nitrogen and Sulfur Nutrients and Superior Performance
Ammonium sulphate nitrate is a compound nitrogen fertilizer made by melting and mixing ammonium sulphate and ammonium nitrate in a scientific proportion and granulating through advanced processes. Belonging to the category of modified ammonium nitrate fertilizers, it effectively overcomes the disadvantages of traditional ammonium nitrate such as strong hygroscopicity, flammability, explosiveness and single nutrition, and is an efficient fertilizer that supplements both nitrogen and sulfur with both quick-acting and long-acting effects.
In terms of nutrient composition, high-quality ammonium sulphate nitrate products on the market have stable nutrient content, usually containing 26% total nitrogen—about 7% nitrate nitrogen and 19% ammonium nitrogen, and rich in 12.5% sulfur element, realizing a scientific ratio of two essential nutrients: nitrogen and sulfur. It has a reasonable combination of nitrogen forms: nitrate nitrogen can be directly absorbed by crop roots to quickly meet the growth needs of crops, showing quick-acting characteristics; ammonium nitrogen can be adsorbed by soil colloids and release nutrients slowly, prolonging the fertilizer efficiency period, achieving the balance of "quick-acting + long-acting" and avoiding the problems of short fertilizer efficiency and fast nutrient loss of single nitrogen fertilizers.
In terms of physical and chemical properties, ammonium sulphate nitrate is mostly white uniform particles, with hard particles, good fluidity and no dust, which is convenient for mechanized fertilization. Compared with traditional ammonium nitrate, its hygroscopicity is greatly reduced, it is not easy to caking, and its chemical properties are stable. It is a non-flammable and non-explosive product, and its safety in storage, transportation and field application is significantly improved. At the same time, the fertilizer is highly soluble in water, with no impurities or precipitates after dissolution. It can not only meet the needs of traditional soil fertilization, but also adapt to modern water-fertilizer integration facilities such as drip irrigation, sprinkler irrigation and flushing fertilization, in line with the development requirements of precise and efficient fertilization in modern agriculture. In addition, the pH value of ammonium sulfate nitrate is close to physiological neutrality. It will not cause excessive acidification or alkalization of the soil after being applied to the soil, and is friendly to the soil. Long-term reasonable application can maintain the balance of soil fertility, which is different from the problems of soil compaction and acidification caused by long-term application of physiologically acidic fertilizers such as ammonium sulphate.
Applicable Crops: Wide Coverage, Suitable for All Kinds of Nitrogen and Sulfur-Loving Crops
With the nutritional advantage of dual supplementation of nitrogen and sulfur and mild soil adaptability, ammonium sulphate nitrate is widely applicable to field grain crops, cash crops, vegetables, fruit trees, oil crops and other types, especially for nitrogen and sulfur-loving crops with more significant effects, making it a highly versatile high-quality nitrogen fertilizer.
In terms of field grain crops, wheat, corn, sorghum, potatoes and other crops have a strong demand for nitrogen. Sulfur can promote the robust growth of crop stems and roots, plump grains, and improve lodging resistance and disease and pest resistance. When applied in the jointing and booting stages of wheat and corn, it can quickly supplement nitrogen, promote tillering and spike development, and increase the 1000-grain weight; when applied to potatoes, it can accelerate tuber expansion, increase starch content, improve tuber quality, and enhance plant stress resistance to reduce the occurrence of physiological diseases.
Among cash crops, to***co, tea, cotton, sugarcane and others have high requirements for nutrient quality. The nitrate nitrogen component of ammonium sulphate nitrate is more suitable for the absorption characteristics of such crops, and will not affect the combustibility of to***co, the freshness of tea or the fiber length of cotton. Topdressing tea after each picking can promote the germination of new shoots and improve the tenderness and yield of leaves; applied in the tillering and jointing stages of sugarcane, it can accelerate stem growth and increase sugar accumulation; after application to cotton, it can promote cotton boll development, reduce boll drop rate, and improve lint yield and quality.
Vegetable crops cover leafy vegetables, fruit vegetables, root vegetables, cruciferous vegetables, allium and garlic and other sulfur-loving vegetables, all of which are suitable for ammonium sulphate nitrate. For leafy vegetables such as lettuce, leaf lettuce and spinach, topdressing after transplanting or in the growth period can quickly strengthen seedlings, making leaves dark green and thick; for fruit vegetables such as tomatoes, cucumbers, eggplants and sweet peppers, topdressing in the fruiting period can promote fruit expansion, improve fruit taste and luster; cruciferous vegetables such as Chinese cabbage, radish and cabbage, as well as green onions, garlic, ginger and other crops have a very high demand for sulfur. Ammonium sulphate nitrate can meet their nutrient needs, promote the expansion of garlic bulbs and the growth of green onion white parts, improve the pungent taste and commodity value, and reduce leaf yellowing and growth retardation caused by sulfur deficiency.
For fruit trees such as apples, pears, peaches, citrus, gr**es and bananas, applying ammonium sulphate nitrate before flowering and in the fruit expansion stage can promote flower bud differentiation, stabilize fruit setting, accelerate fruit expansion, increase fruit sugar and vitamin content, improve fruit quality, and increase single fruit weight and yield. Applying it as banana seedling fertilizer, citrus spring and autumn shoot fertilizer, gr**e germination and fruit expansion fertilizer can balance tree nutrition, avoid premature senescence of tree vigor, and prolong the full fruit period of fruit trees.
In addition, oil crops such as r**e and peanuts, as well as flowers, medicinal herbs and other special crops, can also achieve good effects in promoting growth and improving quality by applying ammonium sulphate nitrate, fully meeting the nutrient needs of different crops and different planting scenarios.
Scientific Fertilization Methods: Adjust Measures to Local Conditions, Precise Application to Maximize Fertilizer Efficiency
Ammonium sulphate nitrate has flexible and diverse application methods, which can be selected as base fertilizer, topdressing, soil application, water-fertilizer integration and other ways according to crop type, planting mode and growth period. The core principle is "small amount and frequent application, deep application and soil covering, avoiding root system, topdressing according to demand", so as to reduce nutrient loss and improve fertilizer utilization rate.
(1) Base Fertilizer Application
Ammonium sulphate nitrate can be used as base fertilizer combined with organic fertilizer, phosphorus and potassium fertilizer for soil base fertilizer supplement before planting dryland crops. The application rate is 20-30 kg per mu for field crops, and 30-40 kg per mu for cash crops and fruit trees. It is applied by spreading and then ploughing, strip application or hole application, with the fertilization depth controlled at 15-20 cm. Keep a safe distance of 8-15 cm between the fertilizer and seeds and seedling roots to avoid burning roots and seedlings caused by direct contact between fertilizer and roots. After ploughing, the fertilizer is fully mixed with the soil to release nutrients evenly and lay a nutritional foundation for crop seedling growth. It should be noted that paddy field crops are not recommended to be applied as base fertilizer, because the high water content of paddy field soil will easily lead to nitrate nitrogen leaching and loss with water, reducing fertilizer efficiency.
(2) Topdressing Application
Topdressing is the main application method of ammonium sulphate nitrate and the core link to exert its quick-acting advantage, and the best effect can be achieved by topdressing according to the growth stage of crops.
1. Soil Topdressing: Topdress 20-25 kg per mu in the jointing stage of wheat and corn; for vegetable seedling fertilizer, topdress 10-15 kg per mu for leafy vegetables, and 15-20 kg per mu for fruit vegetables in the fruiting period; for fruit trees, topdress 200-300 grams per plant according to tree age, by hole or furrow application, and cover with soil after application to reduce nitrogen volatilization and avoid nutrient loss caused by rain erosion.
2. Water-Fertilizer Integrated Application: Dissolve ammonium sulphate nitrate completely in water based on drip irrigation, sprinkler irrigation and flushing facilities, dilute it by 500-800 times and apply with water, with a dosage of 10-15 kg per mu. This method has fast nutrient absorption, high utilization rate, labor and effort saving, and is especially suitable for facility vegetables, orchards and large-scale planting bases. It can realize the simultaneous supply of water and fertilizer, avoid soil compaction, and is the preferred method for efficient fertilization in modern agriculture.
3. Foliar Spraying: Dilute ammonium sulphate nitrate by 800-1000 times to make a fertilizer solution, and spray it on the leaves during the critical growth period of crops. Apply it in the morning and evening when the temperature is low to avoid high temperature evaporation leading to excessive fertilizer concentration burning leaves. Foliar spraying can quickly supplement crop nutrients, alleviate nutrient deficiency symptoms, and is suitable for use when the root absorption capacity weakens in the later growth stage of crops.
At the same time, two major taboos should be noted when applying ammonium sulphate nitrate: first, it is strictly prohibited to mix with alkaline fertilizers and alkaline pesticides, such as plant ash, quicklime, ammonium bicarbonate, etc., to avoid chemical reactions leading to nitrogen volatilization loss and reduced fertilizer efficiency; second, when applied to acidic soil, a small amount of lime can be applied at an interval of 3-5 days to adjust soil pH, and it is not allowed to mix with lime at the same time; third, follow the principle of small amount and frequent application to avoid one-time excessive fertilization, which can not only save costs, but also prevent nutrient loss from polluting soil and water sources.
Standard Storage Methods: Moisture and Sun Protection to Ensure Product Quality and Safety
Although ammonium sulphate nitrate has stable physical and chemical properties, improper storage will still cause problems such as moisture absorption, caking, nutrient loss, and even affect the application effect. Therefore, standardized storage requirements must be followed, and warehouse management must be done well to ensure fertilizer quality and safety.
First of all, the storage environment needs to be dry, cool and ventilated. Choose a warehouse with a higher terrain and dry ground, avoid open-air stacking, and strictly prohibit placing in humid, low-lying and water-prone areas to prevent rain leaching and moisture invasion leading to fertilizer moisture absorption and caking. The temperature in the warehouse is controlled below 30℃ to avoid direct sunlight and prevent high temperature from affecting the physical and chemical properties of the fertilizer.
Secondly, do a good job in warehouse protection. When stacking, use pallets and wooden boards to isolate from the ground, with a height of no more than 1.5 meters to avoid heavy pressure leading to particle breakage; store separately from alkaline substances, flammable and explosive materials, pesticides, seeds, etc., and strictly prohibit mixed storage to prevent chemical reactions or cross-contamination. At the same time, the warehouse needs to take moisture-proof, rain-proof and fire-proof measures, be equipped with fire-fighting equipment, stay away from fire and heat sources, and eliminate potential safety hazards.
Finally, the opened ammonium sulphate nitrate should be sealed and stored, and used up as soon as possible. If slight caking occurs, it is a normal phenomenon and will not affect the fertilizer efficiency. It can be crushed and used normally without discarding. During transportation, closed carriages should be used, rain, moisture and sun protection measures should be taken, loading and unloading should be handled with care to avoid packaging damage, and ensure the stable quality of the product from storage to the field.
Summary: Ammonium Sulphate Nitrate Boosts the High-Quality Development of Modern Agriculture
Under the requirements of green agricultural development and precise fertilization, ammonium sulphate nitrate has become a high-quality product replacing traditional single nitrogen fertilizer by virtue of its core advantages of dual nitrogen and sulfur supplementation, quick and long-acting effect, safety and stability, wide application and convenient application. It not only solves the problems of storage, transportation and application in the process of farmers' fertilization, but also fully meets the nutrient needs of crop growth, improves the yield and quality of agricultural products, and promotes the sustainable development of agriculture.
Agricultural experts said that the popularization and application of ammonium sulphate nitrate conforms to the development concept of high efficiency, green and cost-saving in modern agriculture. Rational application can not only improve fertilizer utilization rate, reduce nutrient loss, but also improve soil physical and chemical properties and protect cultivated land quality. In the future, with the continuous improvement of agricultural modernization, ammonium sulphate nitrate will be more widely used in the planting of various crops across the country with its unique product advantages, injecting new impetus into ensuring food security, promoting agricultural quality and efficiency, and helping rural revitalization. At the same time, farmers are reminded to choose products produced by regular manufacturers when purchasing ammonium sulphate nitrate, apply and store in strict accordance with scientific methods, give full play to the maximum benefit of the fertilizer, and achieve the goal of increasing production and income.
