Nawożenie i jego wpływ na plonowanie roślin oraz na środowisko glebowe

According to many publications, plant production should be on the level of 18 grain units per 1 statistical person. Taking into consideration requirements for food on the above level for 40 miln. of Polish citizens and 18.2 million of agricultural land, it is necessary to obtain average yield in Poland on the level of 38 grain units per hectare. Plant production on the above level is rather different to obtain because about 60% of arable soils in Poland are very acid with low magnesium content. Therefore we should increase the rates of lime and dolomite to obtain soil pH on the level of 5-6 as well as apply 170-180 kg NPK per ha.