Four ways to protect crops from frost

Smoke smoke method: According to the weather forecast, when the low-temperature frost is approaching, weeds, dead branches, fallen leaves, or hibiscus etc. are used in the windward position. Before the ground temperature has not been radiated in large quantities, it is ignited and allowed to burn slowly to increase the temperature near the surface gas layer and prevent the cold air from sinking to prevent frost. Smoke smoke can generally increase the surface temperature by 2~3°C.

Coverage method: Before the onset of the cold wave, cover the crops with straw stalks, straws, mats or large film bags or bundle the entire plant. This will not only protect the leaves from frost, but also protect the heart and growth points. Frost and cold wind and cold rain attack.

Irrigation method: Irrigation can increase air humidity and reduce radiation cooling, so that the temperature of the leaf surface of night crops is increased by 1~2°C compared to no irrigation. The choice of irrigation is best when the frost has not yet occurred after the cold air has passed; it can also be sprayed with water sprayed onto the crops before the sun does not emerge the next day after the crops are frosted and the next day the plants are frosted.

Fertilization method: 3 to 4 days before the onset of frost, fertilizing manure, compost, grass and wood ash and other warm fertilizers in the field can not only improve the ground temperature and soil fertility, but also make the crop grow vigorously and enhance the ability of the body to resist cold. After the frost is frosted, timely management of fertilizers, watering, loose soil, etc. shall be carried out on the frozen crops, and timely spraying shall be taken to prevent the occurrence of diseases.

Disposable Medical Face Mask

Suzhou Xuanweicheng Biotechnology Co., Ltd , https://www.xwc-medical.com