Batch#01 - 20 Dec

Batch#01 - 20 Dec - Day 11

The usual Sunday morning except...

There are 3 new "additions" to the Oon hydroponics family. Stevia, Mint, and Thai Basil, using the Kratky method. Stevia and mint are from Citiponics, which has shown signs of rooting from stems. Thai basil is from seeds from Woodsquare rooftop, germinated, and are in full bloom along the corridor.

The current setup... with the 3 new members placed on the floor, to take advantage of the grow light. Mint supposedly needs just a medium amount of light. So it should be fine. Will have to monitor the stevia and basil.

The usual photos from Tier 1 to 4.

Trying out a new perspective today.

GR:

RO:

BH:

Today's reading:

EC1040

- Good. A slight increase due to the addition of 10ml of A, B and C into 2L of water ytd, to top up the nutrient level.

pH6.7

- Despite the use pH effort on the 2L of water (added 1 drop, that resulted in pH 4.4), the mixing overnight has caused the pH to go up. Now, with greater confidence, 2 drops of pH down were added each to T2 and T4.

- Although quite a number of growers seem not to care too much about pH level, leaving it at 7+, for this Batch I will try to adjust it to the desired range of 5.5 to 6.5. The thinking right now is that with the correct pH range, the nutrient and mineral take-up rate would be in a relatively more optimum state, contributing to better tasting lettuce.

WT28

- Noticed that the water temperature is about 1C above the ambient. Could be due to the heat generated by the grow lights, stored in the reservoir body and being released to the nutrient slowly over the course of the day/night.

Added 2 more drops at 6.30pm after pH shows 6.3.

Also added 5ml of ABC. T4 shows EC940.

Comments

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