At present, many vegetables cultivated in greenhouses often cause burned seedlings and aggravated physiological diseases due to improper fertilization. To summarize the typical experience of scientific fertilization in greenhouses in Guantao County, the following five main points should be grasped in greenhouse cultivation:
Appropriate use of chemical fertilizer greenhouse vegetable due to protection facilities, the soil can not be fully rinse rain, fertilizer is not easy to leaching, so excessive application of chemical fertilizers can easily cause salt to accumulate in the soil surface, lightly affect the growth and development of vegetables, while causing the soil Secondary salinization. Therefore, soil nutrients should be diagnosed before fertilization, and a reasonable formula fertilization scheme should be designated to prevent blind over-application of available fertilizers.
Note that the application of potash fertilizer to potassium-applied melons and solanaceous vegetables has a significant effect on yield increase. This is because with the greenhouse vegetable nitrogen fertilizer applied year after year, the potassium supply capacity of the soil increases with the growing period and the yield of vegetables. Increase and gradually weaken. According to the experiment, the cucumber in the greenhouse was supplemented with 7.5 kg of potassium oxide, which showed thick stalks, green leaves with thick leaves, straight and smooth melons, and improved yield and quality. It should be noted that it is best not to use potassium chloride when using potassium fertilizers to avoid soil salinization.
Fertilizer requires a small amount of vegetables is a crop that requires more fertilizer, in addition to enough base fertilizer, but also need to be topdressing, fertilizer must grasp a small number of multiple fertilization methods, so that one can prevent the loss of nutrients, two can fully play fertilizer effect, Increase fertilizer utilization.
Although the requirement for trace elements in trace amounts of nutrients for the deficiency of trace elements in micronutrients is small, micronutrients are indispensable for physiological action in the vegetables. If the supply of trace elements in the soil is insufficient, there will be different symptoms of deficiency of the vegetables and the yield will be reduced. , quality decline, on the contrary if the content of trace elements in the soil is too much, it will cause vegetable poisoning phenomenon, which will also result in reduced production and reduced quality. Therefore, the application of trace element fertilizer must be based on soil test results and lack of vegetables phenomenon, in the absence of The principle of supplementation is to fertilize.
The application of foliar fertilizers outside the roots requires a simple method, which saves labor and time. Second, it can avoid over-watering caused by excessive soil moisture and thus increase the sensitivity of vegetables. Third, it can quickly add nutrients, but In production, we must grasp the application concentration, otherwise it is easy to produce fertilizer “burn†leaves. The general concentration of foliar spray should be: 1% urea, 0.2% to 0.5% potassium dihydrogen phosphate, 1% diammonium phosphate, sulfuric acid Zinc 0.1% to 0.2%, manganese sulfate 0.1% to 0.2%, borax 0.1% to 0.2%, ammonium molybdate 0.05% to 0.1%, copper sulfate 0.02% to 0.2%, and ferrous sulfate 0.2% to 1%.
Ziprasidone Intermediates
Ziprasidone is a medication of the atypical antipsychotic type. It is used for the treatment of schizophrenia as well as acute mania and mixed states associated with bipolar disorder. Its intramuscular injection form is approved for acute agitation in people with schizophrenia. Ziprasidone is also used off-label for depression, bipolar maintenance, and posttraumatic stress disorder.
Ziprazidone is approved by the U.S. Food and Drug Administration (FDA) for the treatment of schizophrenia as well as acute mania and mixed states associated with bipolar disorder. Its intramuscular injection form is approved for acute agitation in schizophrenic patients for whom treatment with just ziprasidone is appropriate.
We produce a series of complete intermediates for Ziprasidone, intermediate I (CAS No. 2634-33-5) and intermediate II (CAS No. 7716-66-7) etc.
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Ziprasidone Intermediates
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