thick stems and stalks

what is the trick to growing a thick stem and stalks? some sort of nutrient?

Breeze is the best way to get thick stems.

pinching and twisting, often called supercropping.we need a faq on it! the vascular system is like a ring of garden hoses. as long as you don't get too stupid with it and damage these 'hoses', you can get away with murder...almost! pinching and cracking the cambium causes the stem to thicken and solidify; allowing huge buds with no support problems, and that's in a hurricane! I trained some of my plants horizontal...they could handle gale winds all day long!

iv found it depends on the dna of the seed, plant 10 plants of the same strain the one with the biggest stock, clone it.