Cucumber cracking melon control technology in greenhouse
1. Breeding and selection of good varieties.
2, control the appropriate ambient temperature. How to control the shelf temperature in the temperature range of cucumber growth temperature winter cucumber yellow leaves how to do, such as the daytime temperature 25-30 °C, the maximum does not exceed 35 °C, night temperature 15-18 °C, low temperature of not less than 13 °C. Therefore, during wintering and early spring production, attention should be paid to warming and heat preservation. In late summer and late autumn production, when the light is too strong and the temperature of the greenhouse is too high, measures such as covering the shade net or spraying the greenhouse cooling agent may be adopted.
3, scientific lighting. 1 Grasp reasonable colonization density so as to avoid reduced ventilation and light transmittance in the field. 2 Hanging light curtains in the shed. 3 Timely cover grass cover and other coverings, try to extend the light hours, the general weather to ensure that more than 8 hours of light, even if it is cloudy even have to maintain 4 hours. Lian Yin suddenly clear to prevent physiological wilting. 4 Pay attention to wipe the shed film to eliminate fog and water droplets in the shed to increase the lighting rate of the shed film and improve photosynthesis.
4, rational fertilization. 1 increase organic fertilizer, and adjust the balanced supply of various nutrients such as nitrogen, phosphorus and potassium. In particular, the proportion of nitrogen, phosphorus, and potassium required for entering the prosperous period of flowering and fruiting melons is 5:2:6, and attention is also paid to the supplementation of other trace elements. 2 foliar dressing. Seedling stage, initial flowering stage, young stage spraying Feng harvest No. 1, Yunda 120, rare earth micro-fertilizer, etc., can increase plant disease resistance.
5, timely ventilation. Reasonable ventilation, regulate greenhouse temperature and humidity and carbon dioxide concentration. In the cold winter, generally do not enlarge the wind how to prevent insects? , but when the temperature in the shed exceeds 30°C, the ventilation can be appropriately increased.
6, prevent and treat pests and diseases, to avoid injury. After the seedlings had emerged from the cotyledonary lobes, they were sprayed 800 times with chlorothalonil or 800 times with Preco. After the planting and replanting, timely control of diseases such as downy mildew, powdery mildew and anthracnose can be prevented, and 600 to 800 times solution of Nong No. 1 and 600 times solution of Xiangnong No. 3 can be used for drug prevention. Prevent rooting and prevent the bitterness of cucumber from aggravating during the agricultural operations such as planting and rowing.
The greenhouse a filled with equipment like hydroponic, irrigation, auxiliary lighting ,temperature and humidity control and also may be automatically controlled by a computer to maximize potential growth.
Hydroponics can be used to make the most use of the interior space. The relatively closed environment of a greenhouse has its own unique management requirements, compared with outdoor production. Pests and diseases, and extremes of heat and humidity, have to be controlled, and irrigation is necessary to provide water. Most greenhouses use sprinklers or drip lines. Significant inputs of heat and light may be required, particularly with winter production of warm-weather vegetables.
Auxiliary Facilities,Greenhouse Ventilation Fan,Greenhouse Fogging System,Greenhouse Movable Irrigation
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