How to prevent rapeseed from being "flowery"
Rape flowers are very beautiful, but the ultimate goal of growing rapeseed is not to appreciate flowers. How to prevent rapeseed from being "flowery"? Practice has proved that the most effective measure is foliar application of boron fertilizer.
Foliar application of boron fertilizer, the concentration (according to the weight of boron fertilizer) is preferably 0.1% to 0.3%, that is, using borax 0.1-0.3 kg plus water 100 kg to prepare a boron-containing aqueous solution, evenly spraying the foliage. Spraying should be carried out in the evening or in the morning, because the relative humidity is large, the plant pores are open to facilitate the absorption of rapeseed, and it is not suitable for spraying in dry and windy conditions. Spraying should be re-sprayed within 36 hours after spraying. The most critical stage of spraying boron fertilizer in winter rapeseed is seedling stage and bud stage, and the effect of spraying boron fertilizer during flowering and pod development is poor. This is because the spraying of boron fertilizer at the seedling stage can promote the growth of roots and facilitate the normal development of flower bud differentiation. The spraying of boron in the bud stage promotes the extension of the stolons, so that the leaves do not turn from green to red due to boron deficiency, which weakens photosynthesis, especially It can ensure the normal development of reproductive organs such as flower buds and avoid the occurrence of "flowers and not real". Spraying boron fertilizer once in the seedling stage and the bud stage, the yield increase effect is remarkable. In addition, 1 to 3 days before transplanting rapeseed, spraying boron fertilizer on the seedbed is beneficial to the rooting of the roots after transplanting, and economical labor.
Although foliar application of boron fertilizer has a significant effect on increasing yield, if the soil is seriously deficient in boron, only one or two sprays can not meet the needs of boron in rapeseed, and the effect is not as good as basic application. Before the rapeseed is sown or transplanted, 0.5 to 1 kg of boric acid per acre and other fertilizers are uniformly mixed as a base fertilizer and directly applied to the soil. Since boron inhibits seed germination and root growth, direct contact between boron fertilizer and seeds should be avoided. In addition, the amount of boron required for rapeseed is very small, and the excess is often toxic, such as reducing the emergence rate, causing dead seedlings, slow growth after emergence, reduced pods in the late stage, and decreased yield.
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Walking aid, as its name implies, is a walking aid. Its function is to support weight, maintain standing balance, and assist walking, so as to realize compensation and improve walking ability.
As an assistive device, walking aids are indispensable in the rehabilitation training process of age, limb disability and limb injury, so how to choose a suitable walking aid is also a learning.
Walking aids are a large category, which can be divided into walking sticks, walking frames and wheelchairs from simple to complex.
What should we pay attention to when using?
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2. Necessary inspection shall not be less to ensure safe use.
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