Non-polluted tomato soilless culture technology

1. Soilless cultivation facilities: 1. Cultivation trough: The cultivation trough width is 60 centimeters, and the depth of 20 centimeters depends on the length of the greenhouse from north to south. After the trough is dug, the membrane is 0.1mm thick and 80 centimeters wide. The membrane is isolated from the soil. 2. Cultivation matrix: The matrix is ​​a mixture of fine sand and slag, and the ratio is fine sand: slag = 2:1, the matrix is ​​selected and sterilized. After mixing, it is spread into the cultivation tank. 3. Liquid supply system: Two storage tanks with the same size of 2m1m1.5m (inside diameter) are used as the liquid supply system. The drip irrigation facility is an east-west main pipeline, which is connected to each drip tube in the cultivation tank. 4. Nutrient supply: The “Outlook” brand soilless culture nutrient solution produced by Shandong Shouguang Outlook Agricultural Technology Co., Ltd. was used. 2. Nursery: 1. Preparation of the nursery substrate: 50% of the peat and vermiculite are used to formulate the nursery substrate used, mixed and placed in a seedling tray for use. 2. Sowing, soaking the substrate with the substrate into the water, sowing seeds, sowing depth of about 1 cm. After sowing, keep the ambient temperature at 25-28°C during the day and 15-18°C at night. After the emergence, the temperature is maintained at 22-25°C during the day and 12-15°C during the night, and timely watering is performed to keep the substrate wet. III. Cultivation Management: 1 Preparation before planting: 1 Disinfection treatment: Prepare the cultivation system one month in advance, cover the transparent substrate with water after pouring the cultivation substrate, seal the greenhouse, and sterilize by summer light and high temperature. 2 Cooling: Open the greenhouse 2 days in advance of the planting period, remove the plastic film, and immerse the substrate again. 2 Colonization: colonization at the end of August, planting seedlings should be selected without pests and uniform size, colonization by plant spacing of 45 cm, deep planting to the first true leaf node. Immediately after planting, the drip tube was placed in the lower part of the plant in the cultivation tank so that the outlet hole was aligned with the root of the plant. 3 Management after planting: (1) Nutrient solution management: The second day after planting, start pouring the mixture (nutrient solution: water = 1:110), drip the mixture of a storage tank at one time, and water it in the sunny morning, cloudy day. Do not water. After every 3-5 days drip irrigation once or depending on the cultivation of matrix moisture content, planting about 25 days before the beginning of the flower, plant growth and development, to promote wolfberry-based, only sunny, temperature and humidity conditions are appropriate, can be mixed solution (Nutrient solution: water = 1:95) drip irrigation, once every 3-5 days, each time a pool of liquid mixture. After entering late October, the temperature dropped, the light weakened, and the environment of the greenhouse was not suitable. When the plants grew slowly, it was necessary to pay attention to the appropriate number of days for the drip-irrigation mixture. The drip irrigation was performed on a sunny day, and the drip irrigation was generally not performed on a cloudy day. According to the situation, a small amount of drip mixture. By the end of February, use nutrient solution to achieve 30 times, 40 kg each time. After March, the temperature gradually increased, the greenhouse environment improved with the improvement of the external conditions, the plants entered the vigorous growth period again, and the liquid supply mode was changed to drip irrigation once every three days (nutrient solution: water = 1:75) to satisfy The need for growth and development until the end of June until the harvest, during this period a total of 30 times the use of nutrient solution, each 50 kg. (2) Adjustment of plants: In a timely manner, the pods must be hung around the pods. When the first kiwi fruit expands to a certain degree, some or all of the leaves under the first panicle must be promptly destroyed. For old and weak strains, it is necessary to carry out early topping, pulling, and timely removal and disinfection of dangerous diseased plants. For vigorously growing plants, strong lateral branches can be selected for double pole pruning. China Agricultural Network Editor

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