Minhang District Vegetable Technical Service Center, after participating in the project of "Application of Vegetable-specific Fertilizers for Vegetation on Vegetable Safety Production" hosted by the municipal station, according to the implementation plan, the lettuce and knots were successively grown from 2002 to 2003. The cabbage lettuce, spring cabbage, and winter vegetables were used as plot experiments. Based on the successful experience, they were vigorously promoted on eggplant melons, celery, greens, leeks, Ganlan and broccoli. 2002 The application area is 1,000 mu, and 800 mu in 2003. In these applied varieties, they all have 5%-15% increase in yield, and the yield increase in loose leaf production is 8.9%. The main supporting technologies for the application of Tianyuan foliar fertilizer on loose leaf lettuce are summarized as follows: Application Time and Concentration Day-end foliar fertilizers contain various essential nutrients, amino acids and vitamins, and other physiological substances that are normally absorbed by crops through the foliage and roots. For lettuce, there are 2-3 true leaf stages at the seedling stage, which is suitable for spraying once and the concentration is 500-600 times. After planting a living plant, the lettuce is in a period of vegetative growth and requires a lot of nutrients. At this time, the foliage Very easy to use in summer, so after lettuce is planted for 1 week, it can be used for the second time. After the third spraying, the concentration is 300-400 times if the temperature is suitable. About 15 days after the second spray, loose leaf lettuce can be harvested. 2. Quantity and Method of Spraying Seedling needs 40-80ml of Tianyuan stock solution per acre. The dosage of diluent is 20-40 kg and the concentration is 500-600 times. Loose lettuce will require 150 days of natural product per mu. 300ml, the amount of diluent 50-100 kg, the concentration of 300-400 times. Spraying should be done in the morning after the dew is dry or in the evening. It should not be sprayed under the hot sun or when the temperature changes drastically. Spray evenly on the front and back of the leaves with a mild drip on the leaves. Third, pay attention to matters 1, the best edge of the use of leaf fertilizer with the use of the best use, shaking with time, correct understanding of the dilution factor. 2. Foliage spray should be sprayed once within 12 hours. 3, Tianyuan foliar nutrient solution should not be mixed with alkaline substances, but can be mixed with acidic, medium and acidic pesticide spray, but should not be mixed with the original liquid, should be mixed after dilution, with the use of. 4. After the spraying, excess liquid fertilizer can be poured on the root of lettuce.
Bd Test Package is a diagnostic test for a sterilizer vacuum system.In particular,this test can assess an insufficient vacuum condition,meaning that air from the sterilizer cabinet is not completely removed or air leaks from the seal gasket of the door remain in the sterilizer cabinet.This residual air prevents the steam from penetrating the contents of the sterilizer cabinet during the steam exposure phase of the sterilization process.Remove the paper containing the sterilization Indicator tape from the test pack and observe the uniform color change of the indicator line in the tape.A non-uniform or shallow indicator line appears in the center of the paper (where the tape crosses each other) indicating that the penetration of steam into the center of the test pack is blocked. This non-uniformly consistent indicator indicates that steam cannot reach the center of the test pack due to the presence of residual air in the sterilizer cabinet.
BD Test Package
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