Yunhe County, Shahe Township, Hutian Village, Laoyu asked: Why did the leaves appear red or dark green in the seedling stage? Answer: The normal rapeseed leaves are generally emerald green, and the leaves appear red or dark green, mostly caused by the lack of nitrogen and phosphorus in the base fertilizer. Most of the “double low†oilseeds grown today are of the cabbage type, and the leaf color of nitrogen-deficient plants at the seedling stage will turn reddish or dark red because the lack of nitrogen affects the formation of chlorophyll in the leaves, making the Anthocyanin more active. In the absence of phosphorus, the amount of roots absorbed by rapeseeds was significantly reduced, and the amount of fertilizers was reduced. The leaves were dark green, some were dark purple, and then withered, flower bud differentiation was blocked, flowers were less, and the number of pods was small. The countermeasures are to apply appropriate amount of nitrogen fertilizer and phosphate fertilizer to the base fertilizer, or to raise about 1000 kg of cooked human waste per acre before wintering. Polyphenols,Plant Polyphenol,Antioxidant Shaanxi Zhongyi Kangjian Biotechnology Co.,Ltd , https://www.zhongyiherbs.com