How to choose the right compound fertilizer
At present, most farmers pay attention to the true and fake fertilizers and prices when purchasing fertilizer, and seldom consider whether the compound fertilizer ratio is suitable for their own crop needs and soil characteristics. Whether it is wheat or corn, basal fertilizer or top dressing, almost all are selected. -15-15 compound fertilizer, and later heard that 30-5-5 tower granulation compound fertilizer cheaper, but also use high tower granulation compound fertilizer.
In fact, the ratio of N, P and K fertilizers can be roughly divided into 4 types, which are applicable to different soils and crops respectively. General-purpose compound fertilizer: The nitrogen, phosphorus and potassium nutrient ratio of these fertilizers are the same or similar, which is suitable for the base fertilizer of various crops. High-nitrogen and phosphorus-type (low-potassium) compound fertilizers: These fertilizers have relatively high nitrogen and phosphorus contents and low potassium content, generally no more than 10%. They are suitable for seed dressing recovery and crop basal fertilizers in the arid regions of northwestern China and are disposable. Fertilization. High-nitrogen-potassium compound fertilizers: These fertilizers have relatively high nitrogen and potassium contents, good water solubility, and low phosphorus content, generally not exceeding 10%. They are suitable for use as base fertilizers for various types of crops in southern acid soils, as well as fruit and vegetable topdressing, particularly It is used as a greenhouse vegetable fertilization. Low-nitrogen fertilizer: The nitrogen content of these fertilizers is lower than that of phosphorus.
Cooling Agent, is a general term for all the chemicals that can produce cooling effects and are not strong. The most common Cooling Agent is menthol (especially L-menthol), but it should not be used in large quantities due to its strong odor and strong irritation to the skin, mucous tissue, and eyes. Therefore, many scientists have synthesized and extracted a new generation of cooling agent.
WS-23,flavor,Menthol,WS-5,Koolada,WS-12
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