Solar greenhouse vegetable antifreeze five-word management method
Black Tea,Organic Black Tea,Herb Tea Prettyfly Technology Co., Ltd. , http://www.prettyflytea.com
The month of January is the lowest month for natural temperatures in Zhoukou. The lowest temperature is generally -5 to -6 degrees Celsius, sometimes reaching -10 degrees Celsius. In the continuous rainy and snowy weather, some vegetable farmers are afraid of freezing vegetables in the greenhouse, and all day long.苫 苫 结果 结果 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫 苫. After the rainy days are over, it is urgent to unravel the straw and hope to see the plants as soon as possible. As a result, the temperature in the greenhouse rises quickly. The stems and leaves of the plants are in a relatively high temperature environment. The transpiration is enhanced and the water is dissipated. The ground temperature rises slowly, and the cold-rooted or root-removing plants have poor ability to absorb water, and cannot absorb water in time, causing the plants to lose water excessively, causing wilting, and the time is longer leading to plant death. Or drop fruit. On the basis of summing up many years of practical experience, we have promoted the management measures centering on the words “guarantee, grab, increase, ease, and strength†and achieved good results. Many vegetable farmers are managed according to this method, and winter vegetables in greenhouses are basically free from frost damage and have gained high economic benefits. In the second half of 1999, a new high-efficiency energy-saving solar greenhouse was established in the second half of the year. In the second half of 1999, a high-efficiency and energy-saving solar greenhouse was established in the second half of 1999. In late September, young plants were planted and winter cucumbers were planted. The variety was Lixu 21, As the pre-winter management is better, the strong seedlings will be overwintering. In January 2000, under continuous rainy weather, the "five-word" management method was adopted, with a total output of 12,000 kg and actual income of 18,600 yuan. Conversion of 667 square meters of output value of 24,800 yuan. The specific content of the "five-word" management law. A guarantee: to ensure the quality of greenhouse construction, to achieve high daytime greenhouse transmittance, night insulation effect is good. Strengthen pre-winter management to ensure seedlings thrive over winter. Second grab: Even under the rainy weather, make full use of rain and snow to stop production, during the day 9-15, grab the uncovered grasshopper, let the plants see the light, according to the survey on cloudy days (even under the slightest rain, the outside temperature is -5 -6 degrees Celsius), After 9 pm, the grasshoppers are uncovered, the temperature in the greenhouse can slowly rise, and rise to the peak around 14:00, which is 5-8 degrees Celsius higher than the temperature before the exposing of the grass. The increase in temperature can drive the ground temperature and night temperature. The corresponding increase of 2-4 degrees Celsius. If necessary, you can also grab ventilation for a short time at noon. During the day, the temperature and ground temperature in the greenhouses that did not expose the grasshoppers gradually decreased. Three increase: the outside temperature is too low, around -10 degrees Celsius, the temperature in the greenhouse is below the critical low temperature (5 degrees Celsius), during the day due to rain and snow can not be unveiled, so it should be timely artificial warming, add light measures . Four eases: Even after the rain and snow conditions are over, do not expose the grasshoppers to the sunny sunrise, and avoid the dehydration and wilting of plants in the greenhouse due to sudden glare. Specific methods of operation are: (1) After the morning, appropriate grasshoppers can be used to allow the plants to see the light at a low temperature for adaptive adjustment. (2) Use Huimanfeng 500 times before 9 o'clock to spray the leaf. (3) As the light increases, the temperature in the greenhouse rises. If the plants begin to show signs of mild wilting, they should be put to rest immediately. After the wilt recovers, half grasshoppers can be pulled up at intervals. (4) When light wilting occurs again in the light plants, the grasshopper can be released and the Other half of the grasshopper can be pulled up so that the covered plants can see the light. If necessary, spray 500 times more water solution of Vitalin on the plants. In this way, weeding grasshoppers will evenly receive light from the ground in the greenhouse and gradually increase the ground temperature. (5) At 11-14 noon, if the light is too strong, the greenhouse may be too high to put all the grasshoppers out of the light. (6)After 14 o'clock, the outside temperature was lower and the grasshoppers were all pulled up to make the plants see the light. At about 16 o'clock, the grass was planted and the night temperature reached 12 degrees Celsius. (7) According to the above method, for 2-3 consecutive days, the plants in the greenhouse are fully adapted to the sunny environment, see the strong light is no longer wilting can be enhanced management. Top 5: Strengthen management. If the weather is steady, you can pour a mixture of vitality and ternary compound fertilizer at 10:00 AM. Add 100 g of water and 200 g of water, add 500 g of ternary compound fertilizer, and pour 0.5 kg of each fertilizer and pour. After careful attention to proper ventilation and wet. At night, a 40% chlorothalonil aerosol 200g per 667m2 greenhouse can be used to ignite smoke to prevent disease. After entering normal management. (Zhang Xuejian Kang Xueqi)