In SI, a ton (t) equals 103 kg or 1 Mg and is understood as metric ton. When specifying yields or application rates, the designation Mg ha-1 is preferred; t ha-1, widespread outside the United States, is acceptable. For a million tons, use Tg (not Mt).
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In general, 1 ha of soil 15 cm deep equals 2 million kg.
We multiply % (g/100 g) to get g N/kg and the result is in ton/ha. To get kg/ha, simply multiply by 1000 (since 1 ton equals 1000 kg).
The hectare (/ˈhɛktɛər, -tɑːr/; SI symbol: ha) is a non-SI metric unit of area equal to a 100-meter square (1 hm2 ) or 10,000 m2 and is mainly used for surveying properties. There are 100 hectares in one square kilometer.
Hectare, unit of area in the metric system equal to 100 ares or 10,000 square meters, and the equivalent of 2,471 acres in the British Imperial system and in the US customary system.
A unit area of 10,000 square meters. Typically used to measure land. Example: A square with sides 100 meters long has an area of 1 hectare.
To calculate the weight of a cubic meter of soil, you simply need to multiply its volume by its density. Just enter the density of the soil (you’ll probably find it on the packaging) into the surface soil calculator and this calculation will be done effortlessly.
Fertilizer rate kg/ha = kg/ha nutrient ÷ % nutrient in fertilizer x 100. Example: You need 20 units (kg)/ha of phosphorus (P) and plan to use simple superphosphate with 8.8% P.
1.1 Commonly Used Concentration Units
Concentration units are commonly represented with units in the form of mass per volume (e.g., milligrams per liter, mg/L, mg.L-1) for water samples, or mass per mass (e.g. milligrams per kilogram, mg/kg, mg.
A measurement of 6 mg/kg corresponds to 6 ppm or 6,000 ppb, which is equivalent to 6,000 ug/kg. Concentrations of chemicals in water are typically measured in units of mass of chemical (milligrams, mg or micrograms, ug) per volume of water (liter, L, L).
Hectare (symbol ha) is the metric unit of area equal to a 100 m square (1 hm2) or 10,000 square meters. The term hectare is introduced in French from the Latin area. It is mainly used worldwide to measure the area of a large tract of land. One hectare equals 2,471 acres.
1 hectare equals 2.4711 acres. So multiply that number by 2.4711 to convert it to an acre. What is greater than 1 acre or 1 hectare? 1 hectare equals 2.47 acres, so hectare (Ha) is greater than acre (Ac).
A hectare is equal to 10,000 square meters and 2,471 acres in the British Imperial System. 100 ha correspond to one square kilometer. Consequently, a farm with 200 hectares of arable land has 2 square kilometers of arable land.