Dr. Steinmann Henrik szerk.: Folia Entomologica Hungarica 22/1-11. (Budapest, 1969)
The influence of the soil-type on the proportion and number of short flight pollinators per hectare Type of soil County PeBt County Szolnok County Hajdu County Békés * ind/ha 5É ind/ha ind/ha ind/ha Hard , plain-type , clay, somewhat salting 51 1205 17 291 54 842 Medium hard, plain-type clay 43 615 59 1215 34 500 33 472 Sandy clay 68 554 1 Table No. 7. The influence of the soil-type on the proportion and number of middle flight pollinators per hectare Type of soil County Pest County Szolnok County Hajdu County Békés ind/ha I" ind/ha ind/ha ind/ha Hard , plain-type , clay , somewhat salting 15 105 2 34 II Medium hard, plain-type clay 5 71 11 226 6 88 4 57 Sandy clay 6 47
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