1. Deep application of nitrogen fertilizer. The depth of deep application can be flexibly controlled. When the amount of fertilizer is small (5 to 10 kg/mu), it can be applied to the soil 10 cm deep; when the fertilizer is used for a long time (20 to 25 kg/mu), it is applied 15 cm deep.
2. Because of soil fertilization. General calcareous soil, PH value is high, alkaline, acidic or acidic acidic fertilizers should be used, such as ammonium sulfate, ammonium chloride and other ammonium nitrogen fertilizer; acidic soil should use physiological alkaline calcium nitrogen fertilizer.
3. Due to crop fertilization. General cereal crops and leaf crops such as vegetables, tea, etc. require more nitrogen and must be given priority. The leguminous crops, legume green manure and other biological nitrogen fixation functions only need to apply a small amount of nitrogen fertilizer at the beginning of growth.
4. Because of climate fertilization. Under normal climatic conditions, the crop has a strong ability to metabolize, absorb and use more nutrients, and can apply more nitrogenous fertilizer, and vice versa.
5. With other fertilizers. Consider the reasonable application of NPK and other nutrient elements. Applying organic fertilizers as base fertilizers and applying nitrogen fertilizers as top dressings can increase the yield of various crops.
VOLSEN is Manufacturers and suppliers of Pharmaceutical raw materials,anti psychotic pharmaceutical chemicals,anti nootropics chemicals,anti coagulants Bulk Drugs, anti hepatitis and anti ulcerative Pharmaceutical Chemicals in China.
Our Major APIs Included Crude Oxiracetam which registered in KDMF, Amisulpride, Levosulpride, Rebamipide, Tenofovir Disoproxil Fumarate, Entecavir Monohydrate Micronized, Indometain, Ambroxol HCL, Bosentan Hydrate, Drospirenone, Sorafenib Tosylate, Tegaserod Maleate, Dolutegravir, Eltrombopag Olamine.Pazopanib HCL,Vilanterol,Dabrafenib,Trametinib,Axitinib,Umeclidinium Bromide, Although our APIs do not have GMP, but all productions are based on GMP environment, strictly according GMP standard.
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Active Pharmaceutical Ingredients, Pharmaceutical Raw Materials, Pharmaceutical Chemicals, Productions APIS, Bulk Drugs
Taizhou Volsen Chemical Co., Ltd. , https://www.volsenchem.com