Where to put your garden. 1  Choose a smart site for your vegetable garden. 2  Container gardening for vegetables and herbs. 3  How to grow a hydroponic garden. 4  Smart fertilizer use: A vegetable garden begins with a soil management plan. 5  Caring for your soil tip sheet.  Prepare the smart vegetable garden.
mass noun. 1  1Light or heat as emitted or reflected by something. âthe radiance of the sunset dwindled and diedâ. 2  2Physics. The flux of radiation emitted per unit solid angle in a given direction by a unit area of a source.
Lumen is the SI unit of the luminous flux, which is a measure of the total amount of visible light emitted by a source. It is the perceived power of the light from a source.umen and Lux are two photometric units in the SI system of units. They are closely related to each other and, in simple language, measure how bright a light source appears in two different contexts. These measurements are important in light sources and other cases where the intensity of the light plays a role.