The critical assessment of the ploughed field agrochemical mapping in the Krasnoyarsk Territory eastern part (Central Siberia) is given in the article. According to the author, the local scale is designed on the materials of 35 field experiments, in 24 of which the wheat didn't react to the superphosphate introduction. The results of all experiments are unreasonably transformed. The false scale use overstates the area of the lands needing phosphoric fertilizers byseveral times.
scale, mobile phosphorus, superphosphate, experiments, Central Siberia
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