[Entheo Shaman]

I was recently reading Marijuana Horticulture, the indoor/outdoor medical growers bible by Jorge Cervantes.

It states that there are several environmental factors can influence the sex of the seedling once the seedling has three sets of true leaves.

Those factors are:

Increased nitrogen makes more female plants. A higher nitrogen and lower potassium level for the fist two weeks increases females.

Lower temperatures increases the number of females.

High humidity increases females.

More blue light increases females.

Fewer hours of daylight (14 hrs) increases females.



I am wondering if anyone has any experience or thoughts on this. Also, wouldnt adding nitrogen to a seedling be dangerous to the health of the plant?

[BITYmagicBeanz]

Originally Posted by Entheo Shaman

I was recently reading Marijuana Horticulture, the indoor/outdoor medical growers bible by Jorge Cervantes.

It states that there are several environmental factors can influence the sex of the seedling once the seedling has three sets of true leaves.

Those factors are:

Increased nitrogen makes more female plants. A higher nitrogen and lower potassium level for the fist two weeks increases females.

Lower temperatures increases the number of females.

High humidity increases females.

More blue light increases females.

Fewer hours of daylight (14 hrs) increases females.



I am wondering if anyone has any experience or thoughts on this. Also, wouldnt adding nitrogen to a seedling be dangerous to the health of the plant?

use liquid nitrozyme.. or another good nutrients thta is nitro based.. either soak your jiffys or rockwool in it! or spray them. or add it too there regular water feed. most soil plants like nitorzyme. so its always best to add it like a supliment

[thcnology]

If you'll really look at those factors, you'll see that all Jorge is suggesting is giving the plants exactly what they need. IMO the single most influential factor is stress, more stress more males. The other thing not on that list is PH, in my experience a slightly lower PH will also promote more females from your seeds.