Equipment for growing hydroponic house plants (hydroponics), seeds, fertilizers, A, B, C, K, and advice about planting.
Ratio of acid 1 cc / water 6 liters - a 70 cc at 20 baht (water mixed with 420 liters) to pH = 5.5 - 6.5 - 500 cc 60 baht (mixed with water is 3,000 liters) to pH =. 5.5 - 6.5 Remark 1 These prices do not include shipping 2 ratio of 1 ml / 6 liters of water from the Metropolitan Water. Or PWA Which normally has a pH of about 7.0 to 8.0 when the ratio is then used to reduce the pH to a level of about 5.5 - 6.5, which is used for growing plants, pH Down 3. buy a 500 series. C. for 2 bottles - up to 50 baht per bottle left on the market 4. pH Down uses nitric acid concentration of only 3% - 5%, they require large amounts of acid to reduce the pH to a level. 5.5 - 6.5 consumes quite a lot of use. Knowledge density of air to adjust the pH.
In growing plants in hydroponic systems and devices. density of air Control of acidity - alkalinity (pH) of the solution in the system. To the appropriate level Is required no less than the input of nutrients to plants. If you can not maintain the level of acidity - pH to a level that suits them for planting. To make the plant can not absorb nutrients that are in the system. To exploit fully
The pH of the solution should generally be in the range 5.5 - 6.5, or the best in the range from 5.8 to 6.2 when the plant can absorb the nutrients, density of air all well, but if the pH of the solution below 4 to harm. Root In contrast, if the pH is higher than 7 consecutive density of air 2-3 days to make the uptake of phosphorus, iron and manganese anomalies nutrients will precipitate in the presence of water with a pH greater than 7 and above the plant deficiency. Food such as showing symptoms out.
Usually when hydro plants in the pH of the solution is much higher. The plants grow to a much higher pH values because of the growth of stems and leaves (vegetative growth) plant will uptake nitrate ions (NO3-) a majority (uptake of ions. negative than positive) is releasing bicarbonate radicals (HCO3-) the amount equal to the pH of the solution increased. In growing plants in hydroponic systems, devices density of air must regularly and adjusted the pH is about 6.0 at all times.
To adjust the pH of the solution we use nitric acid or phosphoric acid. Which of the two types of acid to reduce the pH of the water to the right. Both types of acid radicals, when the nutrients that make it different to the nitric acid to nitrogen (N) and phosphoric acid, Florida.