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. 1978: St udies on the effects of soi I surface treatments on crop of fa I se more I .These investigations clarify the effects of various soi I surface treatment method s on the occurrence of the false more I in spruce forests. The investigations consist of two major series of experiments which both consist of approximatel y 50 tests.It has clea r ly come out that the breaking of the soi I surface can i ncrease The produce of false morel, however, the yield has been best on areas where the false morel has occurred natura I I y before the experiments. The best method of treatment prov ed to be the breaking of the mineral soi I by a 10-20 em broad furrow wh ich was made i r: the tests by a spade. The produce was at it 1 s best over 10 fruit-bod ies on a running meter. On the basis of the resu Its the average y i e I d was ca I cuI a ted to be 50-100 k i I ograms on a hectare in a year, which reduced in money corresponds approximate ly to the v a I ue of the annua I growth of the stand in the area. The produce was verified to vary annually, but less than on a dry pine heath.R. Jaikctnen, Vep

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