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.
Relation between Radiance and Irradiance. As you stated both radiometry units seem to be similar. While irradiance refers to incoming power, the radiance is used for two cases: angle dependant diffuse reflection (BRDF) emission from light sources. E.g. radiance in direction of the optical axis of a LED is higher, than it's radiance at an angle of 15Â°. Optical simulations / ray tracing calculate the irradiance on surfaces. Your last two questions are mainly correct.