Fertilizers in the context of "Industrial society"

High-yielding varieties (abbreviated as HYVs) of agricultural crops are varieties of crops that are usually characterized by a combination of the following traits in contrast to the conventional ones:

• Higher crop yield per unit area
• Higher quality of crops
• Improved response to fertilizers
• Early maturation
• Resistance to droughts and floods
• High reliance on irrigation and fertilizers (see intensive farming)
• Dwarfness (smaller size)
• Resistance to many diseases and insects.

The most popular HYVs can be found among wheat, corn, soybean, rice, potato, and cotton. They are heavily used in commercial and plantation farms.

A sprayer is a device used to spray a liquid, where sprayers are commonly used for projection of water, weed killers, crop performance materials, pest maintenance chemicals, as well as manufacturing and production line ingredients. In agriculture, a sprayer is a piece of equipment that is used to apply herbicides, pesticides, and fertilizers on agricultural crops. Sprayers range in size from man-portable units (typically backpacks with spray guns) to trailed sprayers that are connected to a tractor, to self-propelled units similar to tractors with boom mounts of 4–30 feet (1.2–9.1 m) up to 60–151 feet (18–46 m) in length depending on engineering design for tractor and land size.

Organic farming, also known as organic agriculture or ecological farming or biological farming, is an agricultural system that emphasizes the use of naturally occurring, non-synthetic inputs, such as compost manure, green manure, and bone meal and places emphasis on techniques such as crop rotation, companion planting, and mixed cropping. Biological pest control methods such as the fostering of insect predators are also encouraged. Organic agriculture can be defined as "an integrated farming system that strives for sustainability, the enhancement of soil fertility and biological diversity while, with rare exceptions, prohibiting synthetic pesticides, antibiotics, synthetic fertilizers, genetically modified organisms, and growth hormones". It originated early in the 20th century in reaction to rapidly changing farming practices. Certified organic agriculture accounted for 70 million hectares (170 million acres) globally in 2019, with over half of that total in Australia.

Organic standards are designed to allow the use of naturally occurring substances while prohibiting or severely limiting synthetic substances. For instance, naturally occurring pesticides, such as garlic extract, bicarbonate of soda, or pyrethrin (which is found naturally in the Chrysanthemum flower), are permitted, while synthetic fertilizers and pesticides, such as glyphosate, are prohibited. Synthetic substances that are allowed only in exceptional circumstances may include copper sulfate, elemental sulfur, and veterinary drugs. Genetically modified organisms, nanomaterials, human sewage sludge, plant growth regulators, hormones, and antibiotic use in livestock husbandry are prohibited. Broadly, organic agriculture is based on the principles of health, care for all living beings and the environment, ecology, and fairness. Organic methods champion sustainability, self-sufficiency, autonomy and independence, health, animal welfare, food security, and food safety. It is often seen as part of the solution to the impacts of climate change.

The Turnip Winter (German: Steckrübenwinter, pronounced [ˈʃtɛkʁyːbn̩ˌvɪntɐ]) of 1916 to 1917 was a period of profound civilian hardship in Germany during World War I, named for the resulting use of turnips as a famine food.

The Turnip Winter occurred during the winter of 1916–1917. Continually poor weather conditions led to a diminished harvest, most notably in cereal production. An ongoing blockade by the Allies of World War I had also reduced Germany's food imports. The food shortages were also attributed to a seizure of horses for the Imperial German Army, the conscription of a large part of the agricultural workforce, and a shortage of farming fertilizers caused by the diversion of nitrogen to the production of explosives. In response to the food shortage, the German government introduced food rationing through the then-new War Food Office. In the summer of 1917, the food allocated offered only 1,560 calories (6,500 kJ) daily diet and dropped to 1,000 calories per day in winter. The Imperial Health Office (renamed "Reich Health Office" in 1918) required 3,000 calories (12,600 kJ) for a healthy adult male, three times what was available in winter. German soldiers relied for their survival on the availability of turnips. Driven by starvation, children started breaking into barns and looting orchards in search of food. Such disregard for authority effectively doubled the youth crime rate in Germany. Historian G.J. Meyer noted that, according to a report from a prominent Berlin physician, "eighty thousand children had died of starvation in 1916". Worker strikes were also common during this time as food shortages often directly led to labor unrest.

Agriculture in Lebanon is the third most productive sector in the country after the tertiary and industrial sectors. It contributes 3.1% of GDP and 8 percent of the effective labor force. The sector includes an informal Syrian labor and is dependent on foreign labor for its productivity. Main crops include cereals (mainly wheat and barley), fruits and vegetables, olives, grapes, and tobacco, along with sheep and goat herding. Mineral resources are limited and are only exploited for domestic consumption. Lebanon, which has a variety of agricultural lands, from the interior plateau of the Beqaa Valley to the narrow valleys leading downward to the sea, enables farmers to grow both European and tropical crops. Tobacco and figs are grown in the south, citrus fruits and bananas along the coast, olives in the north and around the Shouf Mountains, and fruits and vegetables in the Beqaa Valley. More exotic crops include avocados, grown near Byblos, and hashish (a major crop in the Beqaa Valley). Although the country benefits from favorable farming conditions and diverse microclimates, it relies on food imports, which make up 80% of its consumption.

Lebanon's agriculture, which offers fertile land, landscaped terraces, and fresh and healthy produce, faces several challenges in recent years. Improper agricultural practices leading to soil erosion and impoverishment, depletion of underground water resources, water pollution and health impacts from inappropriate use of pesticides and fertilizers, and environmental pollution from haphazard dumping of slaughter waste and animal farms are from the main problems of this sector. Agriculture is also diminishing to rampant urbanization, such as in the coastal plains and in parts of the Beqaa Valley. The government's policies appear to be targeting the increase in the availability of water irrigation (especially in the South) and controlling the use of pesticides, with no or little investment or incentives for water- and soil-conserving irrigation techniques. The private sector is gradually taking advantage of new but small scale opportunities offered by organic farming and high-value agricultural produce.

Ammonium dihydrogen phosphate (ADP), also known as monoammonium phosphate (MAP) is a chemical compound with the chemical formula (NH₄)(H₂PO₄). ADP is a major ingredient of agricultural fertilizers and dry chemical fire extinguishers. It also has significant uses in optics and electronics.