Laboratory and field researches on studying of efficiency of manganous fertilizer on fig. crops are conducted Is established that enrichment of a sowing material by manganese raised growing seeds more than entering of manganous fertilizer into soil, promoted increase in density of plants both in a phase of shoots, and in harvesting. The share of the plants which have remained in time from shoots to full ripeness of grain, with 86,5 to 91,0% thus raised.