Natural turf must be fertilized, and the response of fertilization to plants is basically the same, but it should also be noted that different grass seedlings, different soil qualities, and climate changes in different regions must also be best for different conditions.
1. Nitrogen fertilizer, nitrogen is one of the most important elements for plants. Ammonia is an indispensable important fertilizer for plant growth, and it needs a large amount. Plants mainly absorb organic and inorganic nitrogen in the soil.
Common fertilizers available on the market are:
Thiamin: Thiamine has a nitrogen content of about 21%. It is a fast-acting fertilizer and is an acidic fertilizer. It is easy to make the soil acidic by long-term use, and can be used in combination with lime.
Urea: Nitrogen content of more than 15% (more than 43% of anti-caking urea) Disadvantages are strong hygroscopicity;
Nitramine: nitrogen content 33%, can be fully absorbed by plants, physiologically neutral is no negative effect on the soil, can also be absorbed at low temperatures, winter and autumn can be used, there is hygroscopicity should pay attention when using, a large number of storage, transportation There is a danger of explosion. Keep away from fire. There are also salt amines, lime nitrogen, poultry, bone meal and so on.
2. Potassium fertilizer: Potassium phosphate is available on the market, and its hygroscopicity is 48% to 50%. It can be combined with other fertilizers. There is also potassium chloride, which contains 60% potassium.
3. Phosphate fertilizer:
Phosphate fertilizers can be divided into three categories, organic type, superphosphate type and ammonium phosphate type.
Since phosphate fertilizers are easily insoluble in the soil, they should be used as much as possible with the compost and should be applied in one go. The supplies available on the market are:
Superphosphate: Most of them are water soluble, soluble phosphate is 16%, and should not be used together with nitrosamine when used;
Heavy calcium phosphate: Phosphoric acid is all water-soluble and uses the same method as described above.
4. Organic fertilizer:
Plants and cypress fertilizers: Organic fertilizers made from oil and cypress are used more often in football fields;
Fishmeal and animal fats: Animal fertilizers have low nitrogen content, good fast-acting properties, relatively high levels of nitrogen, such as earthworms, horns, leather, and hair, but they are difficult to decompose and are slow-release fertilizers.
5. Self-supply fertilizer:
Composting, composting and composting, composting and composting are very common when lawns are remodeled on football fields;
Compost: The market supply of compost is produced after puffing. The content of nitrogen, phosphorus, and potassium are high, and the amount used must be appropriate.
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