The invention discloses an oxygenationdrip irrigation method for saline-alkali soil crops and application of the oxygenationdrip irrigation method, and belongs to the technical field of agricultural irrigation. The method comprises the steps of supplying irrigation water with the dissolved oxygen content of 10-15 mg / L to roots through a drip irrigationsystem in the key period of vegetative growth of crops, and carrying out oxygenation drip irrigation operation for at least two times. The invention further particularly provides a method for adjusting the enzyme activity of the soil in the root zone of the crop based on the saline-alkali soil oxygenation drip irrigation and an oxygenation drip irrigation method for improving the yield of the crops in the saline-alkali soil. The core of the method lies in that the time, frequency and oxygen concentration of oxygenation irrigation are accurately controlled, the problem of oxygen deficit of the saline-alkali soil crop root zone is effectively relieved, and therefore the soil micro-ecological environment is improved, root development and plant growth are promoted, and finally collaborative improvement of the crop yield and quality is achieved.
This utility model relates to the technical field of fruit winebrewing catalysts, and discloses a hot-cold alternating catalyst for fruit winebrewing, including a catalytic tank. An inlet is fixedly connected to the upper side of the catalytic tank. A spiral guide vane is fixedly connected inside the catalytic tank. A hot-cold circulation assembly is installed outside the catalytic tank. This assembly is used to activate enzyme activity and yeastmetabolism in the fruit wine, promoting the release of aroma substances and the formation of flavor complexity. A heat exchange tube is fixedly connected to one side of the inside of the catalytic tank, and a water supplypipe is fixedly connected to the upper inside of the heat exchange tube. This utility model achieves highly efficient hot-cold alternating catalysis in the fruit winebrewing process, particularly targeting the needs of aroma release and flavor enhancement in black chokeberrywinemaking. It also allows for easy disassembly and cleaning of the filter screen, ensuring effective filtration of impurities in the cooling medium and reducing the cleaning frequency of the plate heat exchanger.