Summer tips for outdoor hydroponics
When you grow plants outdoors, they’ll use up more water than when grown indoors because it evaporates faster. So you need to make sure that your hydroponic water reservoir stays cool throughout the summer.
There are a few ways to do this:
When it’s hot outdoors, you should lower the EC of your nutrient solution because your plants will need more water in the summer days. Plants drink more in summer. As plants drink more water, they often leave behind the nutrients, making the nutrient solution stronger.Lowering the nutrients will make the absorption of water easier. When the plants are in a vegetative growth phase, you should set your EC to low-to- medium, because medium-to-high will restrict this growth. When the plants are flowering and fruiting you may need to lower the EC if you notice any browning of the leaves to avoid nutrient burn.
Apart from the free direct sunshine, another major advantage of an outdoor hydroponics garden is the natural breeze. This type of air movement helps keep the leave pores (called stomata) open. This ensures that sufficient amounts of carbon dioxide are absorbed and that the evaporating water and oxygen are released in a timely and proper manner.A nice breeze will also remove any vapor from the leaves of your plants and will help keep them cool in the hottest days.
Use a salts cleaning solution regularly, and change your water every 10 days to every second week at least.
To avoid throwing away too much water and nutrients, choose a day when your nutritive solution is very low in the system, and stop your pump. Empty your reservoir. Take apart your growing system and wash all parts. Unclog each tubing, connector, etc. Clean the pump. Rinse your system thoroughly. If you had a disease or any kind of pest in your room this is the best time to disinfect your system. You may use hydrogen peroxide to wipe the parts.
As your feed’s temperature rises, your dissolved oxygen level drops. With less oxygen, nutrient uptake slows and plants become vulnerable to root diseases. When your nutrient solution’s warm and exposed to light, algae can quickly take hold. Once you’ve got algae, your oxygen level drops further.
If your feed’s temperature does climb above 21 degrees, add extra oxygen with more air stones.
No matter what you do, chances are if you choose to grow your plants outdoors you will need to deal with pests
You can use natural pest sprays like neem oil to fight against the pests.