Adequate base fertilizer is indeed a guarantee of high quality and high yield of vegetables. However, there is less demand for nutrients during the vegetable seedling period. During this period, the nutrition of the soil is relatively surplus. In the case of excess nutrients, the growth of vegetables will show abnormalities, mainly in the leggy, flowering fruit set rate is low. It is understood that, at present, 80% of the greenhouse vegetable has various degrees of leggy in the early stage of planting. One of the main reasons is the excess nutrients. Only three or five times of regulation by vegetable farmers can make the vegetables grow normally.
Should reduce the amount of base fertilizer? Certainly not, because the nutrition of the base fertilizer is prepared for the whole growing period of the vegetables. If only taking into account the seedling period of the vegetables, reducing the amount of the base fertilizer will definitely affect the overall yield and benefit of the vegetables. So, how to solve this problem?
First, do not carry fat in the planting hole. When planting vegetables, the farmers often have the habit of taking fat in the planting hole. The purpose of doing so is nothing but fear of lack of fertilizer in the vegetable seedling stage. In fact, the basic nutrients provided by the base fertilizer are very adequate. If the fertilization is carried out in the planting hole, it will undoubtedly exacerbate the growth of the vegetables. Of course, in order to promote root disease prevention, biological bacterial fertilizers can be used in planting holes, and some fertilizers containing large amounts of nutrient elements should not be used again.
The second is to minimize the number of watering. As we all know, the effectiveness of the base fertilizer effect is greatly affected by the soil moisture, the soil moisture is suitable, and the fertilizer effect in the base fertilizer can be fully exerted, whereas the fertilizer effect is exerted slowly. Therefore, in order to avoid vegetable seedlings due to sufficient base fertilizer and length, it is possible to minimize the number of watering at the seedling stage, and in the case of slower base fertilizer fertility, the vegetables will not be easy to grow again.
Orlistat is a long-acting and potent specific gastrointestinal lipase inhibitor. It is white or off-white powder at room temperature. It is insoluble in water, soluble in chloroform, and easily soluble in ethanol. It passes through the stomach and small intestine cavity. Intragastric lipase and pancreatic lipase active codon form a covalent bond to inactivate the enzyme. Fat in food cannot be broken down into free fatty acids and monoacylglycerols, so the fat cannot be absorbed and utilized, thereby reducing the body's caloric intake and controlling body weight. This medicine does not need to be absorbed through the body to exert its effects. At the usual dose, fat absorption can be suppressed by 30%. It is rarely absorbed after oral administration and can be metabolized and inactivated in the intestine. The metabolic site is on the wall of the gastrointestinal tract, and the elimination half-life is about 14 to 19 hours. About 97% of this product is excreted with feces, of which 83% is excreted in the original form.
Orlistat can be used clinically for obesity and hyperlipidemia. Under normal circumstances, 120mg can be taken orally once a day, three times a day, and taken within one hour after a meal. After taking the medicine for 2 weeks, the weight may start to decrease. It can be taken continuously for 6 to 12 months. If the dose is increased to more than 400 mg per day, its effect will no longer be enhanced.
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