In the middle and lower fertility fields, timely and appropriate application of nitrogen fertilizer has a better yield-increasing effect; the yield increase effect of the higher fertility field is not obvious, and excessive application is not only wasteful, but also causes a reduction in production. Generally, 5 kg of urea or 15 kg of ammonium bicarbonate can be used as the base fertilizer per acre; low-fertilizer or no-fertilizer can be applied in high-fertilizer fields, and a small amount of nitrogen fertilizer can be used as a seed fertilizer for better effect, which is beneficial to soybean seedlings and flower bud differentiation. However, the amount of seed fertilizer should be less, so that the fertilizer should be isolated to avoid burning. Generally, the bulk plant fertilizer is applied with 3 to 5 kg of urea per mu, and 10 to 15 kg of superphosphate is suitable, or 2 to 3 kg of urea per acre plus 3 kg of diammonium phosphate. The yield increase effect will be more obvious.
Soybean is applied with nitrogen fertilizer before or during flowering. It also has a good yield-increasing effect. It can be applied with 3 to 5 kg of urea per acre. It can be applied before cultivating, and then immediately cultivated.
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As a portable ankle protective orthosis, ankle protector is suitable for patients with frequent ankle sprain, ankle ligament injury, ankle instability, etc. It can effectively provide cushioning for the ankle during exercise, which can limit the left and right movement of the ankle, prevent sprains caused by the inversion of the ankle, reduce the pressure on the injured part of the ankle, strengthen the ankle and promote the recovery of the injured soft tissue. Moreover, it can be used with ordinary shoes without affecting walking gait.
Ankle joint injury is one of the most common sports injuries. Ankle joint injuries are more common in sports such as running, jumping or changing direction. Ankle torsion exceeds the range of motion of the individual's joint, excessive stretching and tearing of the ligaments around the ankle joint, as well as injury of the extensor digitorum muscle belly and tendon. Tendon and abdomen; The joint between tendon and bone tissue is the most vulnerable part of injury. Foot and ankle are complex mechanisms. There are many foot-attachment joints, many of which are inching joints. The weak link of foot and ankle joint is the main part of sports injury.
If the muscles, tendons and ligaments around the ankle joint have not received enough training and are in a weak state, there is a risk of injury. For example, the muscles of the lower leg may be stronger than the overall muscles of the lower leg, which may lead to the imbalance of muscle strength. Or the Achilles tendon is too tight and the front muscles are too flexible, which leads to an imbalance of flexibility. The second is the lack of warm-up and muscle stretching activities. The support belt can provide additional support and stability for weak ankle joints and injured ankle joints.
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