In the early sowing area affected by the rapid temperature change of the cold current, the rice seedlings suffered from different degrees of freezing damage, which affected the management of the paddy field and delayed the transplanting process to some extent. In order to do a good job in the management of the field and reduce the low temperature hazard, the technical advice on seedbed management is proposed. 1, shed seedlings. According to the weather forecast, the shed should be covered with cover, sealed and insulated. In case of frost, you can light candles or smoke in the shed to warm and freeze. In the greenhouse, you should reduce ventilation, or even not ventilate. Curtain, tiling in the shed, and can be used to warm the pot with a fire or smoke at 1-2 in the night. 2. The seedlings that have been frozen should strengthen the management of the seedbed. Before the sunrise, cool the water to slow down the seedlings. After sunrise, the bed surface should be flattened to prevent the strong light from illuminating and avoiding the temperature rising too fast or the high temperature aggravating the cold damage. 3. Strengthen the management of Miaotian. It is necessary to prevent the temperature in the shed from being too high to breed weak seedlings, and to prevent low temperature and water shortage from bred into small old seedlings, and to prevent the sudden changes in temperature from causing dead and dead blight. According to experiments, the application of nano-magnetic energy to rice seedlings has a significant effect on cold resistance, anti-freezing and strong seedlings. For the seedlings that have been frozen, the nano-magnetic energy solution can also be sprayed, which can effectively alleviate the freezing damage and restore the normal growth of the seedlings in a short period of time. Frozen Mahi Mahi steak Mahi Mahi Steak,Frozen Mahi Mahi Steak,Delicious Mahi Mahai Steak,Fresh Frozen Mahi Mahi Steak Zhoushan Junwei Aquatic Products Co., Ltd. , https://www.junweiaquatic-intl.com