In recent years, greenhouse celery has grown more and more. Recently, the celery we planted has got a kind of "crunchy disease". It is broken at a slight discount, which is not only bad for transportation, but also not good for sale. This kind of fragile disease and celery generally use more fertilizers, less use of soil and fertilizer, plus years of continuous cropping, insufficient input of organic fertilizer, resulting in borax deficiency. The effective boron deficiency in the soil is related to the application of excessive potassium fertilizer. When the celery is topdressed, the application of high potassium fertilizer and excessive potassium fertilizer also affect the absorption of boron. In addition, boron deficiency is also likely to occur in alkaline soils or when dried at high temperatures. Celery is a medium-bright boron crop, and boron deficiency in celery directly affects yield and commerciality. Judging the lack of boron in celery first look at the leaves, the boron-deficient leaves are small, the leaves are thick and dark green, the petiole has brown vertical stripes, the hollow is rolled, the veins are irregularly chlorotic, the burrs appear on the stems, and the leaves become thicker and brittle. Stem splitting, severe boron deficiency heart leaves will burn in a burnt state. When cultivated in protected areas, the heart leaves often appear wet rot, and the plants are pulled up. The roots are thick and short. When the boron deficiency is serious, the apex root tip browns and dies. To solve the problem of boron deficiency in celery, it is possible to use boron fertilizer soaking method. It can also be combined with the base fertilizer to apply 1.5 kg of borax per acre, but avoid direct contact of the boron fertilizer with seeds or seedling roots to avoid rotten seeds and dead seedlings. When it is found that the field celery has symptoms of boron deficiency, it should be sprayed with boron fertilizer immediately, with 0.1% boron fertilizer solution, spray 40 kg per mu, spray once every 5 to 7 days, and spray 3 times. Foliar spray should be chosen in the afternoon, with the leaves wet and not dripping. Can play a very good control effect. This article URL: celery planting boron deficiency can easily lead to fragility We're professional Urethrotomy Set manufacturers and suppliers in China, specialized in
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