Presumably, in many seedling farmers who plant cedar, everyone has encountered the slow development of cedar roots. There are many types of rooting agents. It is recommended that friends choose products of big brands. Don't use cheap products and use unknown products. We use Guoguang rooting agent for a long time, and friends can refer to it. When it comes to the use of rooting agents, we recommend that you follow the manufacturer's instructions. In addition, when using the medicine, you can adjust the amount of alcohol to increase the effect of the medicine. In general, the rooting agent should be dissolved in the 20% alcohol solution of the total liquid, and then the alcohol solution should be slowly poured into the water, and then fully stirred and used. The used liquid should be used with the product or sealed. . Due to the above situation, the rooting is less and slower. It can be watered with 30PPM naphthaleneacetic acid, or the cuttings can be pulled out from the seedbed, and the wound can be cut off from the new peony and then inserted back into the seedbed. If the germination of Photinia frondosa grows slowly, this situation is generally due to the high density of the cuttings of the heather, the small shading rate, the lack of sunlight, and the accumulation of water in the seedbed. Take the new roots as much, Symptoms: The disease mainly occurs in the roots of cedar. The symptoms on the ground are not obvious. When the damage is serious, the needles are yellow and fall off, and the whole plant is dead. The initial lesion is light brown, dark brown to dark brown, and the water layer is necrotic in the cortex. After the tree is infected, the resin overflows above the dry base, and the diseased part does not sag. After the sap is infected, the endothelial tissue of the disease is softened and rotted. Stench, the lesions are ulcer-like, sometimes showing up, the ground is partially chlorotic and yellow, and the cortex is shrinking. The nursery has a fashion stumbling or standing. Improve disease resistance. When the rainy season arrives, 1 strengthen cultivation management. Pay attention to the drainage to prevent the soil from being too wet, in order to prevent the roots from rotting, and at the same time increase the application of quick-acting fertilizers. Usually, it is possible to use pine soil to fertilize the rhizosphere to have a good effect, promote tree growth and improve disease resistance. When fertilizing, it is added to avoid deep ploughing, loose soil breaks the knot, increases soil permeability, resists drought and sputum, and is particularly good for cedar growth. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Yancheng Rongtai Labware Co.,Ltd , https://www.shtestlab.com