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In topsoil, organic matter should not exceed 15% by weight, or approximately one-third of soil particles. [6] Above this limit, the soil will become prone to settlement, consolidation, and waterlogging. If soil remains waterlogged over an extended period of time, the soil will become anoxic, killing most plants and many soil organisms. [2]
Rattan Lal (born 5 September 1944) is a soil scientist. His work focuses on regenerative agriculture through which soil can help resolve global issues such as climate change, food security and water quality. [1] He is considered a pioneer in soil-centric agricultural management to improve global food security and develop climate-resilient ...
In classical [1] soil science, humus is the dark organic matter in soil that is formed by the decomposition of plant and animal matter. It is a kind of soil organic matter. It is rich in nutrients and retains moisture in the soil. Humus is the Latin word for "earth" or "ground". [2]
Organic amendments improve biological activity, water permeability, and soil structure. [4] Mulch, for example, reduces erosion and helps to maintain the temperature of the soil. [3] Compost is rich in organic matter, [4] it is composed of decomposed matter such as food, vegetation, and animal wastes. [3]
A new organic production facility was built, allowing for the expansion of previously purchased product lines, including liquid ammonia chemistry, silanes, acetylenes, and other organics. [4] [5] [10] The company acquired APS Analytical Standards, a maker of turbidimeters, colorimeters, and spectrometers. This business was moved from California ...
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