Rock flour in the context of Boulder clay

A fertilizer or fertiliser is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients. Fertilizers may be distinct from liming materials or other non-nutrient soil amendments. Many sources of fertilizer exist, both natural and industrially produced. For most modern agricultural practices, fertilization focuses on three main macro nutrients: nitrogen (N), phosphorus (P), and potassium (K) with occasional addition of supplements like rock flour for micronutrients. Farmers apply these fertilizers in a variety of ways: through dry or pelletized or liquid application processes, using large agricultural equipment, or hand-tool methods.

Historically, fertilization came from natural or organic sources: compost, animal manure, human manure, harvested minerals, crop rotations, and byproducts of human-nature industries (e.g. fish processing waste, or bloodmeal from animal slaughter). However, starting in the 19th century, after innovations in plant nutrition, an agricultural industry developed around synthetically created agrochemical fertilizers. This transition was important in transforming the global food system, allowing for larger-scale industrial agriculture with large crop yields.

Blanca Lake is located in the Henry M. Jackson Wilderness Area in the Cascade Mountains of the U.S. state of Washington.

Blanca Lake sits in a basin surrounded by the peaks of Monte Cristo, Kyes, and Columbia. The lake is fed by the Columbia Glacier to the northwest and is drained by Troublesome Creek, a tributary of the North Fork Skykomish River. The glacier's cold, silt-filled melt water is what makes the lake a spectacular turquoise green color making this a prime example of a rock flour lake.

A fertilizer or fertiliser is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients. Fertilizers may be distinct from liming materials or other non-nutrient soil amendments. Many sources of fertilizer exist, both natural and industrially produced. For most modern agricultural practices, fertilization focuses on three main macro nutrients: nitrogen (N), phosphorus (P), and potassium (K) with occasional addition of supplements like rock flour for micronutrients. Farmers apply these fertilizers in a variety of ways: through dry or pelletized or liquid application processes, using large agricultural equipment, or hand-tool methods.

Historically, fertilization came from natural or organic sources: compost, animal manure, human manure, harvested minerals, crop rotations, and byproducts of human-nature industries (e.g. fish processing waste, or bloodmeal from animal slaughter). However, starting in the 19th century, after innovations in plant nutrition following Justus von Liebig's discoveries, an agricultural industry developed around synthetically created agrochemical fertilizers. This transition was important in transforming the global food system, allowing for larger-scale industrial agriculture with large crop yields.

Moraine Lake is a snow and glacially fed alpine lake in Banff National Park, 14 kilometres (8.7 mi) outside the village of Lake Louise, Alberta, Canada. It is situated in the Valley of the Ten Peaks, at an elevation of approximately 1,884 metres (6,181 ft). The lake has a surface area of 50 hectares (120 acres).

The lake, being fed almost completely by snow-melt and glacial-melt, does not reach its crest until middle to late June. When it is full, it reflects a distinctive shade of azure blue. The unique colour is due to the refraction of the blue end of the spectrum of sunlight off the rock sediment deposited in the lake on a continual basis in summer by the surrounding glaciers. The lake is completely created by nature and has not been dammed, drained, or otherwise altered by humans in any way, other than the visitor services which are strictly controlled by the National Park.

Gjende (Vang dialect form: Gjendin) is a lake in Vågå Municipality in Innlandet county, Norway. It is located in the Jotunheimen mountain range and also inside Jotunheimen National Park. The proglacial lake shows typical characteristics of glacial formation, being long and narrow, with steep walls. The lake is 18 kilometres (11 mi) in length and only 1.5 kilometres (0.93 mi) in width at the broadest point. Gjende has a characteristic light-green color resulting from the large quantity of rock flour which is discharged into the Gjende by the Muru river. The river Sjoa provides the outlet from Gjende at Gjendesheim, and flows eastward into the Gudbrandsdalslågen river.

Gjende lies in the middle of Jotunheimen National Park and both to the north and south of the lake lie peaks with elevations reaching greater than 2,000 metres (6,600 ft). There are numerous staffed tourist cabins maintained by the Norwegian Mountain Touring Association (DNT); in the west end lies Gjendebu, on the north side lies Memurubu and on the east end lies Gjendesheim. In the summer boats provide transport between these locations.

A fertilizer or fertiliser is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients. Fertilizers may be distinct from liming materials or other non-nutrient soil amendments. Many sources of fertilizer exist, both natural and industrially produced. For most modern agricultural practices, fertilization focuses on three main macro nutrients: nitrogen (N), phosphorus (P), and potassium (K) with occasional addition of supplements like rock flour for micronutrients. Farmers apply these fertilizers in a variety of ways: through dry or pelletized or liquid application processes, using large agricultural equipment, or hand-tool methods.

Historically, fertilization came from natural or organic sources: compost, animal manure, human manure, harvested minerals, crop rotations, and byproducts of human-nature industries (e.g. fish processing waste, or bloodmeal from animal slaughter). However, starting in the 19th century, after innovations in plant nutrition following Justus von Liebig's discoveries, an agricultural industry developed around synthetically created agrochemical fertilizers. This transition was important in transforming the global food system towards larger-scale industrial agriculture with large crop yields in monocultures.