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2
39
4140
2 years ago
Indoor
Room Type
Hydroponics
Medium
HID (400W)
Vegetation Lights
HID (400W)
Flowering Lights
Photos & Video
Grow Conditions
Week 15
Flowering
95
inch
cm
Height
37.4
inch
cm
Height
18 hrs
Light Schedule
24
°F
°C
Day Air Temperature
75
°F
°C
Day Air Temperature
5.6
pH
1100
mS/cm
ppm
TDS
2.2
mS/cm
ppm
EC
Nutrients
ml/l
ml/gal
tsp/gal
ml/l
ml/gal
tsp/gal
Commented by abue abue
2 years ago

Hi!

Dear friends, I need help!:scream:

I see yellowing progress of leaves . At first I thought it’s normal, but it’s far to the harvest – 3 weeks. I compared the different images and detected a lack of phosphorus... Yesterday I changed the solution completely, now use only Flora Nova Bloom. Maybe someone else will tell me?


The 104th day:

Satta made me jittery. Leaves have strongly yellowed and dried after jumps of pH, the plant has lost about 30% of the leaves during 3 days. As I’ve written before, the solution was changed, I've washed the tank and filled Flora Nova Grow. ... Improvement has not come. pH grows on 0.3 units during 12 hours, ppm decreased from 1100 to 1020 - that is mean the plant actively eats anions, phosphorus, sulfur and nitrogen.

I regulate the pH in the morning and in the evening, and half an hour ago according the advice of a reputable friend. I added 15 ml of ripen to the solution. Spray Biobud 1 time a day, I think I’ll stop to spray in a couple of weeks before Harvest, because I do not want to smoke chemistry. Next we will look at the dynamics. I shifted the lamp up by 5 cm. The central cola was already near cooltube (15cm). When I changed the solution one little cone was broken, now it is drying on the box :grin:. When you look at the plant every day it seems there is no dynamics, but looking at the pictures in the diary – there is :blush:

Comments
dee
dee week 15

What is the solution? NPK?
It’s like lack of phosphorus and potassium

abue
abue week 15

The solution is clear Flora Nova Bloom, ppm is 1060 in the morning. I decrease ph 2 times – in the morning and at night – it increased fron 5.6 to 5.9

oldesse
oldesse week 15

Hi! From the 4th week you must add to Flora Nova Bloom some phosphorus and potassium, such as PC. Bloombastic by Atami is good. You can't correct yellowed leaves, but have to add elements for growing cones

ras
ras week 15

Maybe you need to slow nitrogen? Potassium monophosphate only hasten the end, and you'll loose opportunity to grow weight of cones. Give solution with increased phosphorus. I would have done:
1. Ash
2.NPK 90-110-200
By personal experience: At the start of the flowering I always put the ash. Thereby nitrogen is sharply reduced. The plant is quickly switched to the flowering. Then nitrogen is reduced to normal value. High nitrogen at the vegetation stage gives long flowering.

vara
vara week 15

If we eliminate the nitrogen, it will spoils the food. nitrogen is the conductor of phosphorus and all the other elements. phosphorus without nitrogen is not absorbed, it remains like dead weight in the the substrate and becomes superfluous. We need to decrease nitrogen and to add potassium, and the most importantly it is to reduce the total EU on output to 1 EU. After the bush bloom according passport and gains weight. As a rule before the end of the last week plant doesn't eat all fertilizers. EU is about 0.5 - 0.7. It tells us that the nitrogen is ended, all the rest will not be absorbed. Who breaks the nitrogen early and lose weight of cones :blush:.

oldesse
oldesse week 15

You can manicure yellowed leaves, that obstruct the light. And reduce the EU to 1 in two weeks before the harvest. So it will be with gain of weight. Everything is ok. slight yellowing is not terrible :blush:

abue
abue week 15

Thanks again) I’ve manicured:+1: I just don’t understand about common EU – what does it mean "exit" and "common"? I have DWC, there is no exit-inputs:blush:

dee
dee week 15

“Exit” is for substrate, of course. You just need to pour the solution with 1EC – 500ppm. You can reduce from 1.5EC to 1EC from the penultimate week

abue
abue week 15

I'll pour ripen at the last week. It is not bad reviews about this method:smirk:

ras
ras week 15

This method is good for soil, because there is remains of nitrogen in the soils as a rule. And you will have nitrogen from the leaves and and stems, all will turn yellow all at once. Give nitrogen for 3 days. It’ll absent in the solution only some last days. do not rush, read more about DWC :blush:

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