20-15-10 Mixed Fertilizer Potassium Sulfate Type Original Manufacturer

• Product Overview

• NPK 20-15-10 is a high-concentration compound blended fertilizer with a balanced ratio of nitrogen, phosphorus and potassium (also known as BB fertilizer). The numbers in its name represent the content ratios of the three main nutrients in the fertilizer:

·N (nitrogen) : 20% 

·P₂O₅ (phosphoric anhydride) : 15% 

·K₂O (potassium oxide) : 10%

• This 20:15:10 ratio indicates that it is a fertilizer with high nitrogen, medium phosphorus and medium potassium content, particularly focusing on promoting the vegetative growth of plants (stems and leaves), while also taking into account the development of root systems and overall stress resistance.

• Product features and advantages

• Balanced nutrition, synergistic enhancement

· High nitrogen (20%) : It can strongly promote the growth of crop stems and leaves, making the leaves dark green and the plants strong. It is crucial for crops that require a large number of leaves (such as leafy vegetables and lawns) or in the early growth stage of crops. 

· Medium phosphorus (15%) : It helps root development, promotes tillering and branching, accelerates flower bud differentiation, and lays a foundation for later flowering and fruiting. 

· Medium potassium (10%) : It can enhance photosynthesis, improve the crop's resistance to lodging, diseases and pests, and cold and drought, and at the same time improve fruit quality.

·Excellent physical properties: Blended fertilizers are made by physically mixing single fertilizer particles of similar size and specific gravity. The particles are uniform, have good fluidity, are not prone to caking, and are convenient for mechanical and manual application.

· Flexible formula: As a blended fertilizer, its formula can be adjusted according to different soil conditions and crop requirements. NPK 20-15-10 is a highly versatile benchmark formula. 

· Strong quick-acting ability: The raw materials it uses are usually water-soluble urea, monoammonium phosphate, potassium chloride or potassium sulfate, etc., which can be absorbed and utilized by crops relatively quickly.

Packaging

Granular

Packaging

• Main applicable crops and periods

· Field crops: From the early growth stage to the jointing stage of cereal crops such as corn, rice and wheat, it can effectively promote tillering and plant growth. 

· Top dressing for cash crops such as cotton, sugarcane and tobacco during their vigorous vegetative growth period.

·Vegetables：

· Leafy vegetables: such as Chinese cabbage, spinach, lettuce, leek, etc. throughout their entire growth period. High nitrogen can significantly increase yield and quality. 

For fruits and vegetables: such as tomatoes, peppers, cucumbers, eggplants, etc., it is used during the nutritional growth period before flowering to accumulate nutrients for flowering and fruit setting.

· Fruit trees: Topdressing for fruit trees such as apples, pears, and citrus fruits from the time of spring sprouting to before flowering promotes the growth of spring shoots and the unfolding of leaves. 

· Lawns and ornamental plants: It is used for the greening fertilizer and top dressing during the growth period of lawns, as well as the maintenance of foliage garden plants, which can make them grow rapidly and keep them green.

· Unsuitable period: For crops mainly harvested for fruits or tubers (such as trees, tomatoes, potatoes, etc.), after flowering and fruit setting, high-potassium fertilizers (such as NPK 15-15-15 or 10-20-20) should be switched to to reduce nitrogen intake and concentrate nutrients for fruit expansion.

• Precautions

· Soil testing and fertilization: It is best to first understand the nitrogen, phosphorus and potassium content in the soil. If the content of a certain element in the soil is already very high, the formula should be adjusted to avoid waste and environmental pollution. 

· Deep application and soil covering: Especially when used as top dressing, it is essential to cover the soil. The nitrogen element in it is prone to volatilize in the form of ammonia gas. Shallow application or surface application will significantly reduce the fertilizer efficiency. 

· Avoid direct contact with seeds/root systems: When used as seed fertilizer or applied in holes, keep a distance of more than 5 to 10 centimeters from seeds or the root systems of seedlings to prevent seed or seedling burning. 

· Pay attention to chloride ions: Understand whether the potassium source used in the product is potassium chloride or potassium sulfate. 

For "chlorine-sensitive crops" (such as tobacco, potatoes, grapes, citrus fruits, etc.), NPK 20-15-10 fertilizers with potassium sulfate as the potassium source should be selected. The packaging usually indicates "sulfur-based".

• Summary

NPK 20-15-10 is a very classic and practical universal growth-promoting fertilizer. Its core advantage lies in its high nitrogen content, which strongly promotes the vegetative growth of crops and lays a solid foundation for high yields. For the majority of growers, choosing crops at the stage when they need to "grow" usually yields remarkable results. The correct and scientific use of it is an important part of achieving bountiful harvests in agriculture.