Tea Garden Wet Harness Treatment and Identification
First, the identification of tea trees is not only good water but also water. Even temporary water will cause great harm to the tea tree. This is "wet damage." The essence of wet damage is the lack of oxygen in the soil, which causes the tea tree to suffocate and cause harm. At the same time, some substances that are harmful to the growth of tea plants, such as ferrous iron, reducing sulfur, etc., will also cause harm to the root growth of tea plants. After the tea tree was wetted, it absorbed less roots, black roots, and a large number of small pods and rust on the outer skin. The roots were shallow and the absorption capacity was reduced. The tea trees were short, thin, thin, and thin. Severely damaged tea plants have serious undergrowth and root rot. The main causes of wet damage are: 1. Water-logging type: Weakly damaged: Mainly a tea plantation that is replanted in paddy fields. It is easy to cause water accumulation in the soil because it has not been excavated. 2, surface runoff wet: often appear in the tea garden under the reservoir dam, as well as the hillside below the tea garden. Soil surface and soil layers often seep through the runoff. Second, the method of prevention and control of wet hazards Tea plant wet damage is caused by soil disorders, more difficult to control. Therefore, we must adhere to prevention, such as setting up a good irrigation and drainage system, and do a good job of land leveling, especially when rice fields are replanted and the tea gardens are insisted on deep farming before planting. For tea gardens that have caused damage, first eliminate water damage according to the types of wet hazards, then carry out canopy transformation and assist with other improvement measures to be effective. For water-filled tea gardens formed by impervious layers, drainage is to be done. That is, a tea tree is cut from the lowest part of the tea plantation site, a drainage ditch is opened, and water is discharged from the tea plantation. For the tea gardens that cause dampness due to the inner surface flow of the land surface and the soil layer, trenches should be cut above the tea garden. The intercepting ditch is perpendicular to the runoff direction. After the tea plantation is drained, the damp soil shall be deeply turned to remove the harmful substances caused by the accumulation of water. Then strengthen fertilizer management and retention, make it rejuvenate, and gradually resume growth.