Corn: To produce 100 kg of corn grain, approximately 2 to 4 kg of pure nitrogen, 0.7 to 1.5 kg of phosphorus, and 1.5 to 4.0 kg of potassium are needed. If the expected yield is 400 kg per mu, it's recommended to apply an average of 40–60 kg of ammonium sulfate or an equivalent nitrogen fertilizer per mu. For phosphorus, 40–60 kg of superphosphate (containing 10%–16% effective ingredients) should be used, or alternatives like heavy calcium phosphate (36%–52% active ingredients) or calcium magnesium phosphate (12%–16% active ingredients). For potassium, 6–10 kg of potassium sulfate (48%–52% active ingredients) or potash chloride (50%–52% active ingredients) is advised. Alternatively, plant ash can be used as a potassium source, with a recommended application of 40–60 kg per mu (dry ash, free from impurities).
When determining the proper fertilization rate for corn, several factors must be taken into account, including the type of corn being planted, its variety characteristics, the target yield level, and local soil and climate conditions. During the early seedling stage, corn plants are small and grow slowly, so their nutrient uptake is relatively low. However, as the plant enters the jointing and booting stages, followed by tasseling and flowering, growth accelerates significantly. At this time, both vegetative and reproductive development occur simultaneously, leading to a substantial increase in nutrient absorption. After the vegetative growth slows down, nutrient uptake declines sharply, and the plant becomes less responsive to additional fertilizers.
It’s important to apply nutrients in a timely manner to match the plant’s needs at each growth stage. Over-fertilizing during the early stages may lead to waste, while under-fertilizing during peak growth could limit yield potential. Therefore, a balanced and well-timed approach to fertilization is essential for maximizing corn production and maintaining soil health.
Neck Massager
Whether it's from sleeping weird, working out too hard, or sitting hunched over for hours staring at your computer, most of us have dealt with kinks in our necks from time to time. According to a peer-reviewed article from Marco Funiciello and Zinovy Meyler, Doctors of Osteopathic Medicine, one of the best ways to soothe aches and pains in your neck is through massage therapy.
While going to a massage therapist can be a relaxing experience, it can also be quite expensive. So if you don't have the time or money to get a professional massage, investing in a portable, at-home neck massager is a cost-effective alternative. The handy gadgets can knead out tight knots and melt stress away with ease.
There are many kinds of neck massagers on the market, including portable handheld models, devices that wrap around your neck, and even manual massager rollers. Some boast special features like adjustable heating controls so you can apply heat therapy to painful spots, while others are designed to target pressure points for migraine relief.
Deep Muscles Massager,3D Neck Massager,Electric Back Massagers,Heated Neck Massagers
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