It is currently the season of summer corn topdressing. Comparing summer corn with spring corn, summer corn has two characteristics. One is that the growth period is short, generally about 100 days, the seedling growth is in the hot and rainy season, and the second is that the summer corn is planted in winter wheat-summer corn rotation. system. In some areas of Hebei, the farmers harvested the winter wheat and immediately ordered the summer corn. The farmers called this time the three summers to grab the harvest. Since it is a double robbing, there is no time to turn the ground and land, and summer corn will not be able to apply fertilizer. In some areas, such as the northern part of the country, corn is planted before the wheat is harvested. The common feature of the above two types of areas is that the base fertilizer cannot be applied before planting summer corn. Therefore, the fertilization method of summer corn depends only on seed fertilizer and top dressing.
How to grasp the fertilizer and topdressing of summer corn? The specific method is that when planting summer corn, combined with planting and applying fertilizer, the amount of seed fertilizer is about 10 kg/mu, and the fertilizer is selected as a compound fertilizer with a ratio of NPK to 15%-10%-15%. The fertilization method is to ditch and fertilize the soil. When the corn seedlings grow to the trumpet period, he will apply fertilizer for the second time in a timely manner. 20 kg of urea will be applied to the mu, and the soil will be buried after the application, and then water will be poured. In the past two years, the summer corn he planted has settled down at an average yield of more than 450 kg, and some have reached a kilogram.
Expert analysis: This case has the following points worth emulating:
1. The time of seedling fertilizer is well-prepared, which embodies the principle that the summer corn seedling fertilizer should be applied at an early time and the topdressing should be applied at an appropriate time.
In the fertilization type, it not only embodies the characteristics of nitrogen, phosphorus and potassium nutrient balance application of seedling fertilizer, but also highlights the characteristics of topdressing nitrogen fertilizer during the growth period. The first time the seedling fertilizer was applied with NPK fertilizer, the second time the top dressing applied re-application of nitrogen fertilizer.
3. In the grasp of the amount of fertilization, both fertilizers and urea were applied to both fertilizations. The yield of summer corn obtained in that year was 450-500 kg per mu, and this amount of fertilizer was economically optimized and reasonable.
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A one-piece colostomy bags, drainable pouching system designed to be opened at the bottom when emptying. These colostomy bag machine are most suitable for colostomies or ileostomies. Ostomy bag colostomy barrier is a standard wear skin barrier that is gentle to the skin and allows for frequent pouch removal. To close the pouch, use the curved, beige clamp. Soft, beige disposable colostomy bag pouch panels on body side help provide comfort.
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Ostomy urostomy colostomy bag care products consist of sodium carboxymethylcellulose, adhesives made from medical hot melt adhesives, and separator paper or separators. Nursing equipment for ileum, colon, rectum or urethral stoma,The coloplast colostomy bag comes into contact with intact skin and intestinal lumen,Non-sterile supply. Colostomy bag reusable for stoma washing, care and collection of excreta and skin care around the stoma.
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