China peasants spraying fertilizer on tea plants during harvest time in yunnan province

Humberstone Saltpeter Works, UNESCO World Heritage Site, northern Atacama, Chile, South America

Swallow-tailed gull perched rocks, Galapagos Islands, Ecuador

Zambia sun hemp (black), soil fertilizer & green manure

Zambia jack beans, soil fertilizer and base for paint making

Looking from Dead Horse Point near Canyonlands National Park over the Colorado River canyon to the evaporation ponds at Potash. Mined salts are concentrated here for the extraction of potash for fertilizer, Dead Horse Point State Park, Utah, USA

Farmers in Java island using organic instead of pesticide. They are using traditional tools and organic manure/ fertilizer and they still have a good quality harvest. Java, Indonesia

Farmers in Java island using organic instead of pesticide. They are using traditional tools and organic manure/ fertilizer and they still have a good quality harvest. Java, Indonesia

Farmers in Java island using organic instead of pesticide. They are using traditional tools and organic manure/ fertilizer and they still have a good quality harvest. Java, Indonesia

Farmers in Java island using organic instead of pesticide. They are using traditional tools and organic manure/ fertilizer and they still have a good quality harvest. Java, Indonesia

Farmers in Java island using organic instead of pesticide. They are using traditional tools and organic manure/ fertilizer and they still have a good quality harvest. Java, Indonesia

Farmers in Java island using organic instead of pesticide. They are using traditional tools and organic manure/ fertilizer and they still have a good quality harvest. Java, Indonesia

Sewage sludge ready for spreading on a farmers field as a fertilizer in the Ribble Valley near Clitheroe, Lancashire, England, United Kingdom, Europe

Frost on leaves of lettuce

Rippon Vineyard, people stirring fertilizer in barrels, Otago, South Island, New Zealand, Oceania

Farmer putting natural fertilizer on his rice field, Takeo Province, Cambodia

Farmers woman putting natural fertilizer on a rice field, Takeo Province, Cambodia

Jesus Alberto Dazza scoops fertilizer on the base of young coffee plants in the rural highlands of Colombia's coffee axis. In the background, Luis Fernandez (center), Dario Valencia (left), Jaime Arias (left)

A young man pours fertilizer at the base of young coffee plants on a coffee farm in rural Colombia.

Aerial view of TexasGulf Potash Ponds which are solar evaporation ponds used in the process of mining potash. Potash, a water-soluble potassium salt is extracted and blue dye is added to increase the rate of evaporation. It is mainly used in fertilizer products but also in the making of soap, glass, ceramics and batteries. The mine is currently owned and operated by Intredpid Potash Inc and the ponds cover 400 acres of land surrounded by sandstone cliffs and wilderness near Moab, Utah, USA, Utah, United States of America

A Worker Applies Chemicals To A Mid-Growth Rice Field With A Hand Applicator, Philippines

Agriculture

Crop dusting helicopter spraying a corn field, Iowa, United States of America

Pesticide suit and fertilizer for sale at a shop, Taungyii, Shan State, Myanmar

Crop dusting helicopter spraying a corn field, Iowa, United States of America

Farmer loads high Clearance Sprayer with liquid Fertilizer for application to a recently Seeded Wheat Field, near Dugald, Manitoba

Sign at edge of a Harvested Grain Field, Winnipeg, Manitoba

Slow release fertilizer application: coated fertilizer, to a water lily (Nymphaea 'Pygmaea Helvola') grown in a pot, in summer.

Slow release fertilizer application: coated fertilizer, to a water lily (Nymphaea 'Pygmaea Helvola') grown in a pot, in summer.