On Earth, water naturally flows downward, aiding plant roots in absorbing nutrients ... The data from the lettuce experiment supports the development of closed-loop systems that recycle water, air, ...

That issue aside, this system gets high marks for its affordability, attractiveness, simple setup, and effectiveness at helping plants grow roots. The Lettuce Grow Farmstand that we tested has the ...

Allow the seed heads to dry for a few days in a paper bag with open air flow ... Because lettuce has a rather compact root system, it makes an ideal crop to plant in pots. Plus, it’s a great ...

NASA astronaut Sunita Williams, on an eight-month mission aboard the ISS, is growing 'Outredgeous' romaine lettuce to understand ... nutrient absorption, and root orientation.