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A fertilizer (American English) or fertiliser (British English) 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. [1]
In agriculture, the yield is a measurement of the amount of a crop grown, or product such as wool, meat or milk produced, per unit area of land. The seed ratio is another way of calculating yields. Cereal yield in tons per hectare and kilograms of nitrogenous fertilizer applied per hectare of cropland.
Crops do not always require a uniform application, as some areas will have different nutrient requirements due to their location (soil properties, sunlight). [2] Variable rate fertilizer spreaders can be used to increase or decrease fertilizer application rate, using a global positioning system (GPS). [5]
The land equivalent ratio is a concept in agriculture that describes the relative land area required under sole cropping (monoculture) to produce the same yield as under intercropping (polyculture). [ 1 ]
Precision agriculture, as the name implies, means the application of precise and correct amounts of inputs like water, fertilizer, pesticides, etc. at the correct time to the crop to increase its productivity and maximize its yields.
In agriculture, a soil test commonly refers to the analysis of a soil sample to determine nutrient content, composition, and other characteristics such as the acidity or pH level. A soil test can determine fertility , or the expected growth potential of the soil which indicates nutrient deficiencies, potential toxicities from excessive ...
Advancements in fertilizer and farm chemical technology in the 1970s paved the way for more intense production agriculture in the United States. New fertility management practices, more acres in production, and the need for less soil compaction drove Ag-Chem's application equipment to larger capacity and higher flotation machines. [4]
Agrominerals (also known as stone bread or petrol fertilizer) are minerals of importance to agriculture and horticulture industries for they can provide essential plant nutrients. [1] Some agrominerals occur naturally or can be processed to be used as alternative fertilizers or soil amendments . [ 1 ]