For anyone who wants to know about the results of concentration, and other things, of my hydroponic experiment

I have in total:

5 bell pepper

3 tomatoes

2 zucchini

1 cucumber

Concentration of nutrient solution (ppm):

N 213.35

P 41.35

K 299.50

Ca 176.28

Mg 41.24

S 108.46

Cl 80.47

Fe 2.92

Cu 0.06

Zn 0.30

Mn 0.58

B 0.37

Mo 0.05

High concentration of sulfur is due to sulfuric acid used to acidifiy tap water (pH = 7. 8) to reach pH = 5.2

High concentration of chlorine is due to the use of calcium chloride and potassium chloride.

Phosphorus concentration is more than enough according to the results, no need to increase at "bloom stage", and maybe you can use P = 30 ppm or less.

NH4 / NO3 ratio: 14 / 86

No EC or TDS readings.

Growing media:

Fermented rice husks 70% and 30% grit

"Net pots" (inexpensive plastic sieve) dimensions:

Pepper: diameter 5.5 inch x depth 2.5 inch

Tomato: diameter 6.5 inch x depth 3 inch

Zucchini: diameter 8 inch x depth 3 inch

Cucumber: diameter 9 inch x depth 5 inch

Plastic container:

Pepper: 2 liters

Tomato and zucchinni: 1.5 gallons

Cucumber: 3 gallons

Watering method:

Manual, twice a day after aerating solution with an air pump.

At the end of the day recover excess of nutrient solution to recirculate (manual)

Adjusting pH every 36 hours to 5.2.

All the plants share the same nutrient solution.

Watering nutrient solution Monday to Friday

Watering with acidified water (pH = 5.2) Saturday and Sunday (no nutrient solution)

Light conditions:

Use of an inexpensive window plastic mesh to reduce intensity of sunlight (very important), 4 hours of sunlight.

28 C average temperature.

First three weeks:

Watering 1 oz of nutrient solution for every plant twice a day

Fourth week:

Watering 1 oz of nutrient solution for every bell pepper twice a day

2 oz for each tomato

2 oz for each zucchini

2 oz for the cucumber

Fifth to seventh week:

4 - 5 oz for plant twice a day

Nutrient consumption:

About 1 gallon for week / first month (plus 1 gallon of acidified water for weekends)

About 1.7 gallons for week / second month (plus 1 gallon of acidified water for weekends)

Pepper

3 weeks:

7 weeks:


First flower:

Tomato:

3 weeks

7 weeks

Zucchini:

3 weeks

7 weeks



First zucchini male flower:

Cucumber:

3 weeks:

7 weeks:


Male flowers:


First female flower:


Another female flower:

Coming up some day:

The most important, vegetable and fruits formation