hydroponics system-nutrient technique (NFT)
Hydroponics is an ideal way to grow plants in urban areas. This makes it a great hobby that helps you to relax and it is fun to watch the hydroponic plants grow in the garden nft.
Indoor Hydroponics Grow Kit Indoor Hydroponics Grow Kit, Hydroponic Indoor Plant Grow Light Kit,Indoor Hydroponic Grow Tent Complete Kit JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , http://www.spgreenhouse.com
NFT does not give average support to roots. Typically, the roots sit in a long sloping channel irrigation (Fig. 1.1). The nutrient is introduced into the high class of the canal and allowed to flow over the roots after which it drains into the nutrient tank. This is then re-pumped back into the channel to repeat the watering process.
This feed cycle can be intermittent or continuous. An & lsquo; The intermittent 'rss cycle is controlled by the clock and repeated several times per hour. this is sometimes called the "NFT pulse". The NFT pulse usually achieves better aeration of the roots as the roots are exposed to air between each feed. A & lsquo; continuous' rss cycle works non-stop. This is often used in commercial operations.
You can easily grow your favorite flowers at home without muddy mess and need to water your plants regularly.
Prevention and cure of rotten pepper in plastic greenhouse
First, agricultural measures 1. Control the air temperature and humidity in the shed. Application of hard plastic pipe underground water infiltration technology, independent control of wet disease prevention. With the traditional ground irrigation method, a temperature and humidity meter is attached to both ends of the shed (the temperature and humidity meter of the direct air relative humidity data is available on the market), and the temperature and humidity of the air in the observation shed are periodically measured, and the measured data and time are measured. The optimum temperature and humidity in the fertility stage were compared to guide the air cooling, temperature and humidity, and the temperature of the curtain was controlled. The temperature and humidity environment in the shed was actively controlled and controlled. The temperature in the shed during the day was controlled at 25°C2°C and 18°C ​​at night at 2°C. The relative humidity of air is 75% 5%; when the outside temperature is greater than 15°C, ventilation is gradually done day and night, and the bottom wind is placed in the front of the shed, from small to large; a tuyere is opened every 2 meters, and the brick is flatly supported and is of type "A". When the outside temperature rises to an average temperature of 16°C-18°C, bricks are placed vertically (10 cm high); at 19°C-21°C, bricks are placed (20 cm high); with the increase in temperature inside the shelter, the waist is released. Wind and wind, or shade net. The air must be smoothly ventilated, and the temperature in the shed must not fluctuate in a short period of time. 2. Manual disinfection. In the buffer room and in front of the entrance to the greenhouse, a 1.2m long and 1m wide grass mat lime disinfecting pool was constructed. Lime water was sprinkled every 15 days to keep the pool moist. Into the shed, both feet were disinfected in the pool to prevent outside bacteria from carrying. Spread the disease; pick latex gloves, and cut fruits with scissors soaked with disinfectant; equip with 0.5% potassium permanganate disinfectant bucket, and then disinfect the scissors and latex gloves to prevent germs from invading. Stain spread. 3. Increase phosphorus and potassium fertilizers. Use 2% potassium dihydrogen phosphate solution to micro-spray the stems and leaves, 30 kg per acre of fertilizer solution, 7 times a day top dressing, in order to improve the plant's resistance to disease. 4. Cover grass to reduce humidity. Spread 3-5 cm thick wheat straw wheat bran between large banks, absorb moisture and dampen moisture, reduce the air humidity in the shed, and prevent the development and harm of diseases. Second, pesticide control 1. Disease prevention and control. After colonization and survival, use 64% antiviral 400 times solution, 72% metalaxyl manganese zinc 500 times solution or 72% Duponctron 700 times solution to alternately spray the whole plant, once a day for 7 days, and continuously spray 2-3 times. Times. 2. Gray mold and Sclerotinia prevention and treatment. Peppers from the time to the pepper time with 20% of the Green Emperor 400 times solution or quick-acting 1200 times the control of gray mold; with 40% zolex 400 times or 100% of the whole plant spraying Baifen Sprouting Sclerotinia disease. 3. Soft rot control. In the early flowering and postharvest period, monitoring and control should be strengthened. 77% can be used to kill 700 times and 72% of agricultural streptomycin 3000 times alternating use, stems and leaves spray, the plant does not drop the liquid is appropriate. 4. Anthrax prevention and treatment. Into the results of the maternal stage, with 75% chlorothalonil 400 times or 70% thiophanate-methyl 800 times the disease at the peak of the new 300-times with 300 000 spray, with plants do not drop the drug is appropriate. 5. Cotton rot control. On sunny days, the whole plant can be sprayed with 400% of the anti-virus 400-fold solution. When it is cloudy or rainy (greater than 85%), it is sprayed with 20% slow-drying moxa, 250-300 g per acre, and closed in the evening. Room, igniting the agent, the next day after the sunrise, the air outlet vents and exhausts before entering the shed.
Next Article
Meat rabbit winter fattening technology
Prev Article
Convolvulus artificial breeding success