JIANG SU CYCLE BIOSCIENCE

  1. Root cuttings Indole acetic acid and indole butyric acid fast soaking method: prepare 1000mg/L high concentration solution and put it in the bottom basin, the depth of the drug solution is 3 ~ 100px, then put a small bundle of cuttings upright in the container, soak After 5 seconds, take it out to dry and then cut it in the seedbed. This method is easy to operate, less equipment, the same solution can be used repeatedly, less dosage and fast speed. Slow soaking method: Indole acetic acid is formulated into a solution with a concentration of 25mg/L (variety that is easy to root) ~ 200mg/L (variety that is not easy to root), and then the base of the cuttings is immersed in the liquid for 8-12 hours and then the cuttings are taken out. This method has a long dipping time, a large number of cutting points require more containers and a large amount of medicine. Dip powder method: Take 1g indole acetic acid, dissolve it with 95% alcohol or 60-degree shochu, and then fully mix with 100

Saline-alkali soil is a collective term for all kinds of saline soil, alkaline soil, and different degrees of salinization and alkalization. Because the soil contains a lot of saline and alkali components, and has poor physical and chemical properties, the growth of plants is inhibited or even unable to grow. Improving and using saline-alkali land is of great significance to compensate for the decreasing area of arable land and ensure food security. The harm of saline soil 1. Salinization deteriorates the physical and chemical properties of the soil, and the living conditions of crops, forest trees and pastures deteriorate, which are manifested in: ① The content of soil organic matter is relatively reduced. Because soil salinization inhibits the process of soil herbification and the accumulation of soil organic matter, the content of soil organic matter is relatively reduced, which affects the physical and chemical properties of the soil. ②The soil nutrient condition becomes worse. Und