Search Hydroponics Online:
New Immigration Laws Pave the way for Hydroponic Farming
Powdery and Downy Mildew
Building your own Indoor Grow Room part 2
Building your own Indoor Grow Room part 1
The Benefits of Chelated Micro-nutrients
Is the pH really that important?
Getting Bigger Yields From your Hydroponic Plants
Tips for getting the most out of your nutrients
Millions of dollars lost in hydroponic tomato plant sabotage
Growing Hydroponic Raspberries, part 2
Cyanobacteria, tea not working, PLEASE HELP!
Ebb and Flow question
Seed germination questions
Green house. Nft and dutch buckets
New here
New guy, strawberry tower
It's Cyanobacteria! Questions about tea!
life of lettuce in dwc question
Northern lights bloom box
Strawberry Tower
eating after using flora series fertilizer
round vs square gullies/channels aeroponics
A Newbie's Plan - Growing an Areca Palm DWC indoors
michrobes failed to stop pythium
Potasium Nitrate
For GPSFrontier
Persistant root rot, bennificial bacteria not working
bubbly foam on the reservoir
Newbie here saying hello
Low cost high water pressure protection for RO water filters
www.hydroponicsonline.com 

LESSON FIVE

Nutrients Requirements and Testing 5 -5

Month: July                                        Example of Data for Hydroponic Tomato Garden

Date EC pH  Sol. Temp Day Temp Night Temp Growth Stage Size Comments
1 1800 6.0 74 F 76 F 70 F

Seed

-

Planted seeds

2 1800 6.0 74 F 76 F 70 F

Seed

-  
3 1800 6.0 74 F 78 F 70 F Seed -  
4 1800 6.0 74 F 78 F 70 F Seed 0.0"

Seeds Germinated

5 2000 6.0 70 F 78 F 68 F Seedling

0.5"

Leaves emerge

6 2050 6.0 70 F 78 F 68 F Seedling

0.9"

 
7 2100 6.0 70 F 79 F 67 F Seedling 1.0"  
8 2150 6.0 70 F 78 F 68 F Seedling 1.5"  
9 2200 6.0 70 F 79 F 69 F Seedling 2.0" 2nd leaves appear
10 2400 6.0 70 F 77 F 68 F Seedling 2.3" Replace nutrient solution
11 2400 6.0 70 F 80 F 67 F Seedling 2.6"  
12 2450 6.0 70 F 79 F 66 F Seedling 3.0"  
13 2450 6.0 70 F 80 F 68 F Seedling 3.5"  
14 2500 6.0 70 F 80 F 69 F Seedling 4.0" Rapid growth
15 2500 6.0 70 F 80 F 67 F Seedling 4.5"  
16 2500 6.0 70 F 79 F 68 F Seedling 5.0" Yellowing leaves
17 2500 6.0 70 F 77 F 70 F Seedling 5.5"  
18 2400 6.0 70 F 80 F 69 F Vegetative 6.0"

Replace nutrient solution

19 2400 6.0 70 F 78 F 69 F Vegetative 6.8"

Yellowing gone

20 2450 6.0 70 F 80 F 68 F Vegetative 7.6"  
21 2450 6.0 70 F 79 F 69 F Vegetative 8.0"  
22 2500 6.0 70 F 77 F 67 F Vegetative 8.8" Rapid growth
23 2500 6.1 70 F 80 F 68 F Vegetative 9.6"  
24 2500 6.1 70 F 79 F 70 F Vegetative 10.2"   

25

2500 6.1 70 F 80 F 69 F Vegetative 11.0"  
26 2500 6.0 70 F 79 F 69 F Vegetative 11.6"  
27 2600 6.0 70 F 77 F 68 F Vegetative 12.0"

Replace nutrient solution

28 2600 6.0 70 F 80 F 69 F Fruiting 12.5"

buds appear

29 2600 6.1 70 F 79 F 67 F Fruiting 13.0"  
30 2650 6.1 70 F 80 F 68 F Fruiting 13.5"  
31 2700 6.1 70 F 79 F 70 F Fruiting 14.0"

First flower opens

HOME / LAST PAGE / NEXT PAGE