COMPLEX FERTILIZER COMPRISING PHOSPHORUS AND POTASSIUM, AS WELL AS NITROGEN-FIXING BACTERIA

摘要

Multifunctional, phosphate and potassium salts contg. artificial fertilisers are free from nitrogen cpds. but contain nitrogen fixing bacteria for the supply of nitrogen to soils. A special non symbiotic strain of azotobacter used is viable between -20 and +40 deg.C, multiplies well in nutrients at pH 4.5-9 and withstands desiccation well.