Cucumber downy mildew, angular leaf spot, powdery mildew is the main disease causing cucumber yield reduction. In order to reduce the pollution of chemical pesticides, pollution-free pesticides should be used as much as possible. The preparation methods of several pollution-free pesticides are described below.
1. Black sugar M enzyme method Black sugar pesticide is a pollution-free pesticide for controlling various diseases such as cucumber leaf spot, downy mildew and powdery mildew. Its synthetic components do not contain toxic substances, can be absorbed by the leaves, enhance the physiological activity of the leaves, increase the effective bacteria, promote the photosynthesis of the leaves, and produce more sufficient nutrients, so that the plants have stronger resistance to pathogenic bacteria. Prevent the invasion of harmful pathogens. The preparation method is: black sugar (black sugar can also be) 4 kg, bio-M enzyme 300 g, boiling water 9 kg, and a clean porcelain jar (15 kg pack). Wash the porcelain jar first (preferably disinfect), dry it, pour the black sugar into the tank, then add boiling water to completely dissolve the sugar. When the temperature of the soup drops below 30 C, slowly add the enzyme and gently stir it to mix well. Then, use a sterile bleaching cloth, seal the can lid, place it in a warm place (18-35 ° C), stir once a day, and add the appropriate amount of edible vinegar (about 5 mL) during the first stirring. , 5-10 days of fermentation showed foam. As the new body continues to produce and the enzymes meet, the surface of the nutrient solution first appears white spots, and then a layer of white film is formed, which is made into a black sugar pesticide stock solution, the efficacy period is 3 months, can be placed in the shade Store at the site and dilute 1000 times when spraying.
Second, sugar wine vinegar M enzyme method sugar wine vinegar pesticides can control a variety of pests and diseases of cucumber. It can also control gray star disease and black star disease in fruit trees. The production method is simple and the effect is good. Production of Fangde will mix AM biological bacteria solution (product of Gansu Dasheng Bioengineering Research Institute), brown sugar, white wine (above 30 °C), vinegar and water in a ratio of 1:1:l:l:10, and mix the mixture. Put it in a polyethylene plastic container, cover the lid tightly, and put it into a room temperature fermentation at room temperature. Make sure that the temperature of the solution does not exceed 40 ° C. After a few days, the fermentation broth will generate gas and the container will bulge. At this time, loosen the lid, release the gas, and then immediately cover it. Gas should be placed every 3d after the first gas generation. If the gas is no longer produced, it indicates that the fermentation has been completed and the pungent vinegar smell can be smelled. The fermentation time is about 20-3 days in the winter. The sealed shelf life at room temperature is 2-3 months. If the smell of leaven disappears, it indicates that it has expired. The standard dilution factor for controlling pests and diseases is 1000 times liquid. If the effect is not obvious after spraying, the dilution factor can be gradually increased to 50-200 times, and the young leaves and seedlings should not be lower than 800 times. Both sides of the leaves, young stems must be sprayed. The most basic purpose of using the preparation solution is to prevent the occurrence of pests and diseases, and should be used as soon as possible. If the pests and diseases occur in large quantities, the effect will be unsatisfactory.
Third, the urine sugar liquid in the middle and late growth of cucumber, if the fertility is poor, the growth is weak, there will be symptoms of malnutrition. It has been reported that the ratio of the concentration of nitrogen sugar in the juice of cucumber plants falls below 2, which is prone to downy mildew; if the ratio of juice concentration is increased to 2.2 or more, the occurrence of downy mildew can be prevented. According to the test, the resistant varieties have high sugar content, while the susceptible varieties have low sugar content. Therefore, some people call downy mildew a "low sugar" disease. Therefore, by supplementing nutrition, the purpose of prevention and treatment can be achieved.
According to the test, use urea 0.2 kg of ten sugar (white sugar, brown sugar can be) 0.5 ks ten water 50 ks. In the period of growth, spray once every sd, spray 4-5 times continuously, the control effect is about 80%. It is usually sprayed in the morning, sprayed on the back of the leaf, and used on susceptible varieties. .
How to Select the Best Grow Light for your Greenhouse?
The plant needs light to thrive cause the light is essental for photosynthesis.without it,plants can not make food.but light can also be too intense,too hot or last too long for growing healthy plants.plant growth accelerates with abundant light because more of the plant`s leaves have exposure,which means more photosynthesis.in the winter,days are not long enough,but many plants still need 12 hours or more of light per day.
Now,adding LED Grow Lights to your greenhouse is an nice choice if you live in the north, and can not get enough daylight in winter.you might be take HID into consideration,cause it has high output and cover a wide area.but now,we providing you some dfferent.the newest type of grow lights use LED technology.
Provides Maximum Light Density and optimizing spectrum(410nm-740nm,white)
as we know that the plants need more light from the blue side of the spectrum during their seedling stage and when developing foliage and require light from the orange to red side of the spectrum while inblooming and fruiting phases. We adopting lastest intergrated COB technology, white , more red and blue PAR(410-740nm) per Watt than any other lighting fixture for the best color uniformity.
Dual Veg and Bloom for plant growth and bloom
the Led grow lights feature selectable VEG and BLOOM light spectrums to deliver maximum performance from seeding through the flower stage and finally harvest.
Increase yields and potency
using high quality lense that hyper-focus the lights on your canopy.the photons are beamed directly to the plants.this gives growers the ability to get greatest possible crop yield.
Reduce your costs with energy efficiency
energy-efficient cannabis grow lights cost between 40%-60% less to operate compared to HID lam year.
Led grow light also eliminate the needs for ballasts and reflectors while they minimize the cooling systems,accelerating your payback.you will see the electrical bills trimmed by approximately half,year after year.
Installs and operates simply
the input voltage is AC100V-240V,fit for the world standard,built-in power supply.do not need other equipment,just access to the Plug,the lamp will be work smoothly. The led grow lighting is small size,just few inches and easy to install.it is the good option for some greenhouse.
Long lifespan
using built-in quiet fans and the shutter in the wind,induced draftfrom all sides.runs with quiet. Useadvanced isolation power supply and soft start protection technology, to prevent the high voltage when turn on the light from damagingthe lamp body.
What' the best indoor led grow light ?The definition of Philizon :
Safe and Reliable(Meet the safety requirments around the world)
Effective(Good efficacy for the plants)
Energy Conservation(High efficiency and high PPFD in same power)
Long life(Use long life span elements)
Soft and comfortable lights(No Harmful,Flicker free,protect your eyes)
Features
- Water-cooling design, 20°C+ lower than fan-cooling design
- Vac100-265 universal input voltage
- Advanced secondary optical lens design for penetration
- Smart over-heat protection system
- Product designed to ETL standards
- Completely noise-free with water-cooling system
- Effectual spectrums proven by professionals
- Quick slide-into-track system to combine two or more LED fixtures together
Item Display
Full Spectrum Indoor LED Grow Light and High PAR
Application
Our professional full spectrum Indoor LED grow light are suitable for all the indoor plants and good for seeding, growth,flowering and fruiting stages of plants, increasing the harvest and Saving energy.
Philizon Indoor LED Grow Lights by Light Efficient Design provide growers a better solution for reliable and effective agricultural lighting. Light Efficient Design has been making LED retrofit lamps for over six years, and has a strong product lineup, proven designs, and excellent reliability. And now, our energy-efficient, money-saving products are helping to promote success in indoor farming and commercial greenhouses.
Warmly welcome to take a visit on our Company at any time.
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Shenzhen Phlizon Technology Co.,Ltd. , https://www.szledaquariumgrowlight.com