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The following category relates to articles linked to the improvement of soil quality. Subcategories This category has the following 4 subcategories, out of 4 total.
By November 2019, the German Aerospace Center estimated large electric planes could be available by 2040. Large, long-haul aircraft are unlikely to become electric before 2070 or within the 21st century, whilst smaller aircraft can be electrified. [84] As of May 2020, the largest electric airplane was a modified Cessna 208B Caravan.
Soil conditioners may be used to improve water retention in dry, coarse soils which are not holding water well. The addition of organic material for instance can greatly improve the water retention abilities of sandy soils and they can be added to adjust the pH of the soil to meet the needs of specific plants or to make highly acidic or ...
Airplane gliding occurs when all the engines of an aircraft shut down, but the wings are still functional and can be used for a controlled descent. This is a very rare condition in multi-engine airliners, [ 1 ] though it is the obvious result when a single-engine airplane experiences engine failure.
Aircraft in Agriculture, 1958-1963: A List of Selected References. Library List No 65, Sup 1. June 1965. National Agriculture Library. United States Department of Agriculture. B H Hyde Wyatt and R F Hill. Agricultural Aircraft. London. 1958. Reviewed in Pesticides Abstracts and News Summary. Richard Q Boyles. Advanced Materials for Agricultural ...
SahysMod - Saline seep - Salinity in Australia - Salt marsh - Salting the earth - SaltMod - San Joaquin (soil) - Sand - Sand boil - Sandbag - Scobey (soil) - Seitz (soil) - Serpentine soil - Shear strength (soil) - Shear strength test - Shrub swamp - Silt - Slope stability - Slump - Sodium adsorption ratio - Soil - Soil acidification - Soil amendment - Soil and water assessment tool - Soil ...
The first known use of a heavier-than-air machine to disperse products occurred on August 3, 1921. [4] Crop dusting was developed under the joint efforts of the U.S. Department of Agriculture and the U.S. Army Signal Corps' research station at McCook Field in Dayton, Ohio. [4]
Soil contamination, soil pollution, or land pollution as a part of land degradation is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals or improper disposal of waste .