在萝卜幼苗期喷施多效唑,可抑制地上部分营养生长过旺、合理调节植株体内光合产物的分配和运转,既能保证有足够的营养面积进行旺盛的光合作用,又可避免中后期过早衰败,延长光合作用时间,有 Spraying paclobutrazol at radish seedling stage can restrain vegetative growth over shoot, and properly regulate the distribution and operation of photosynthetic products in the plant, which not only ensures sufficient nutrient area for exuberant photosynthesis but also prevents premature decay in the middle and later stages , To extend the photosynthesis time, there