Grow
lighting can be one of the most essential factors to successful plant
production in a commercial greenhouse because grow lights help to lighten shady
spots and propagation areas in the greenhouse. If you are growing tropical
plants, you may need to set up grow lights if the plants don't get at least
eight hours of sun each day. Most crops benefit from supplemental lighting,
when increased growth and quality is converted into added revenue. We provide Growing Light and complete systems for
your greenhouses.
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Cage cucumber abnormalities have many symptomatic control effects
Due to lack of illumination in the sheds and frequent occurrence of diseases and insect pests, it is easy to cause abnormalities in cucumbers in the greenhouses. Cucumber malformation mainly refers to sharp-nosed, big-bellied, slender waist, curved melon, etc., which occur in production. This not only affects the cucumber yield, but also seriously reduces the quality of the product, causing great losses to the vegetable farmers. In order to effectively prevent cucumber deformity, the causes and prevention measures of cucumber deformity are briefly introduced as follows for reference by farmers. First, the formation of reasons 1. Improper temperature regulation. During the greenhouse cucumber production period, cloudy snow weather, the temperature difference between day and night is small, the night temperature is high, plants grow too prosperous, easy to appear thin waist melon. 2. Pest and harm. After cucumber plants are seriously harmed by aphids, downy mildew and other pests, it is easy to form sharp-edged melons. 3. Poor pollination. In the flowering period of cucumber, it is affected by low temperature, continuous rainy weather, and low ground temperature. It is easy to cause poor pollination, and the apex of the melon strip first expands to form the big tummy melon. Undernutrition or lack of moisture, melon seeds formed more than the top, melons grow thick, and melon seeds in the lower part of the seedless or seedless, melons grow thin, become big guagua. Cucumbers encounter low temperatures during the flower bud differentiation period, and they easily form short deformed melon balls. Second, prevention and control measures 1. Scientific control of temperature. Appropriate temperature should be given during cucumber seedling stage, especially before 2 true leaves, and the temperature difference between day and night is required to be greater. The minimum temperature at night should not be lower than 10°C, so as to avoid forming malformed ovary and grow into malformed melons. The temperature difference between day and night in the cucumber melon period needs to be larger. During the melon period, the daytime temperature should not exceed 30°C. At night, the temperature should be 16°C-18°C and the middle of the night should be 13°C-15°C. Ventilation should be strengthened to prevent over 30°C. , ensure the normal pollination and fertilization, so that the thickness of the melon strip up and down evenly. 2. Reasonably water. During the growing period of cucumber, especially in the period of squashing, it cannot be considered that a large amount of fertilizer and water for cucumber is used for top dressing and irrigation, resulting in “running and runningâ€. Sunny days should pay attention to watering to prevent water shortages. To control the amount of watering watering, especially in the fruit expansion period should not be excessive watering. 3. Strengthen pest control. For diseases such as cucumber downy mildew, disease, and gray mold, in the initial stage of cucumber growth, we must always pay attention to the discovery of “central diseased plants†and remove the diseased leaves in time to prevent the expansion of infection. Prevention and treatment of diseases can be done by spraying aerosols without increasing the humidity in the sheds and preventing them from becoming more thorough. Use 45% chlorothalonil smoke agent per acre 250 grams, points distributed in the shed, lit one by one from the inside out in the evening, smoking smoke after closing the shed, generally 7 to 10 days 1 time, once every 2 to 3 times . For aphids, whitefly can be sprayed with 10% imidacloprid wettable powder. In addition, it is necessary to remove the deformed fruit in time to ensure the nutritional supply of normal melon strips.