Papaya is a tropical crop that has a hot and humid climate and avoids low temperature frost. Freezing damage occurs when the temperature is below 5°C. Therefore, it is important to take the following measures to prevent freezing: First, re-apply wintering fertilizers. Before the advent of the winter season, each tree was planted with 10-15 kilograms of organic manure mixed with plant-wood ash and 1.5 kilograms of phosphate fertilizer. It was drilled at a distance of 80-100 centimeters from the main trunk and excavated in a circular groove of 20 cm in width and 35 cm in width. Mix the fertilizer with the excavated soil and fill it in the trench. After fertilization, cover the tree tray with straw or other weeds. The second is tying the trunk. Before the advent of winter, wrap the trunk with straw and tighten it with a rope to prevent direct damage to the trunk. The third is to protect the growing point. Before the onset of the cold wave, straws or plastic films were used to cover the top growth points of the plants to protect the growing points from freezing. The fourth is the rise of smoke. In a cold and sunny night, use straw, chaff, sawdust, turf, etc. to make smoke in the garden to prevent the cold air from sinking and the formation of frost particles to protect the plant leaves. Fifth, spray water. On the morning when frost particles form, spray the plants with clean water to rinse the frost particles to reduce the frost damage caused by the frost particles. China Agricultural Network Editor
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