Zinc, boron, copper, manganese, molybdenum, iron and other elements as essential to plant nutrition in the form of fertilizer into agricultural production systems, began in the 20th century, 20 to 30 years, on a global scale, since the 20th century, 60 to 70 years start, applied to large-scale production, is an emerging area of rapid development. The past 20 years, application area is continually expanding.
May 5, 2010
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[...] ordinary superphosphate, nitrogen potassium, ammonium, plant ash, calcium magnesium phosphate, trace elements fertilizers and others. Also include liquid ammonia, ammonia.It is characterized by: (1) relatively simple [...]
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