Search results
Results from the WOW.Com Content Network
Topsoil is composed of mineral particles and organic matter and usually extends to a depth of 5-10 inches (13–25 cm). Together these make a substrate capable of holding water and air which encourages biological activity.
Since soil-based organic agriculture uses less pesticides, it has lower toxic residues than plants grown with inorganic fertilizer by approximately 75%. [ 5 ] [ 6 ] While there is inconclusive research on whether it is more nutritious than conventional agriculture, a meta analysis of plant nutrition found that soil-grown organic food is higher ...
He discovered that air-rooted cuttings were more robust and hardened compared to those formed in soil, and concluded that air-rooting was a sound principle. Briggs also found that air-rooted trees could be transplanted to soil without experiencing transplant shock, which is often observed in hydroponic transplants.
An air flow meter is a device similar to an anemometer that measures air flow, i.e. how much air is flowing through a tube. It does not measure the volume of the air passing through the tube, it measures the mass of air flowing through the device per unit time, though Thus air flow meters are simply an application of mass flow meters for the ...
Soil bulk density is equal to the dry mass of the soil divided by the volume of the soil; i.e., it includes air space and organic materials of the soil volume. Thereby soil bulk density is always less than soil particle density and is a good indicator of soil compaction. [ 47 ]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The benefits of improving soil structure for the growth of plants, particularly in an agricultural setting, include: reduced erosion due to greater soil aggregate strength and decreased overland flow; improved root penetration and access to soil moisture and nutrients; improved emergence of seedlings due to reduced crusting of the surface; and ...
The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.