Boron is an indispensable trace element in plant growth. It can promote the synthesis and transportation of sugar in plants and make its meristematic cells differentiate normally, which is beneficial to the development of seeds and fruits. When boron deficiency occurs in vegetables, it often shows poor growth, damaged vascular bundles, necrosis of growth points, malformation of nutritional organs, etc., and reduces yield and quality. Such as celery deficiency often lead to petiole chapped, radish lack of boron can easily lead to hollow, black heart, lettuce boron deficiency can lead to heart leaf necrosis, cucumber boron can easily lead to fruit deformity. Preventive measures: (1) Basal application of boron fertilizer. 0.5-1 kg of boron fertilizer per acre is applied to the soil after being mixed with nitrogen fertilizer, phosphate fertilizer or organic fertilizer. (2) Foliar spraying. After the vegetables showed symptoms of boron deficiency, the leaves were sprayed with 0.1%-0.2% borax solution. In order to improve the prevention effect, it can be sprayed in the windless evening to prevent rapid evaporation of fertilizer solution. (3) Apply more fully cooked organic fertilizer to improve soil physical and chemical properties.
Shark Cartilage Powder,Nutraceutical Ingredients,Health Product
Natural Plant Extract,Plant Extract,Amino Acid Co., Ltd. , http://www.natural-plantextract.com