Don't use the fertilizer indiscriminately

1. Classification of fertilization



    (1) Classification by variety



    Organic and inorganic materials, scientifically produced organic and inorganic liquids are compounded and fertilized; the other is a composite preparation of organic, inorganic, biological and other materials that are scientifically processed and compounded together.



    (2) Classification based on chemical traits



    Organic types such as amino acid type, humic acid marine biological type, etc.; inorganic types such as urea, potassium dihydrogen phosphate, high calcium type, high potassium type, etc.; microbial type yeast type.



    2, the key to the application of fertilizer



    (1) Grasp the correct application method



    Before using the demand, first add the fertilizer to the water, make the mother liquid, and then add water to the ground, pay attention to control the amount of water, to ensure that the nutrients in the fat guess can be evenly distributed.



    (2) The preservation environment should be appropriate



    Some of the fertilizers contain some microbial preparations. When storing, choose a dry and cool place to prevent moisture and direct sunlight, and stop mixing with fungicides.



    (3) The amount and concentration of fertilizer should be scientific



    If the applied concentration is too high, a large amount of harmful gases such as ammonia gas and hydrogen sulfide will simply occur, resulting in crop poisoning; try not to spray the fertilizer directly into the field, which is very simple to cause burning.



    (4) Fertilizer varieties should be suitable



    When the fertilizer is applied, it depends on the variety and growth condition of the crop, and when the vegetable is cultivated, ammonium nitrate, urea, or the like can be selected.