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Data producer	Project title, contact person and keywords		Duration
MTT	Changes in pH and in the contents of extractable metals in soil during the last thirteen years Sippola Jouko Phleum pratense, heavy metals, nutrient content, nutrients, pH, soil testing		Completed 5 v.: 1987 - 1991
MTT	Development of agriculture to improve water pollution control and especially to protect pearly freshwater mussel in Pirkanmaa Nyk�nen Arja nitrogen, phosphorus, erosion, pH		Completed 2 v.: 1997 - 1998
MTT	Economical liming rate Elonen Paavo liming, pH, soil fertility		Completed 12 v.: 1982 - 1993
MTT	Effects of the chemicals, used in municipal waste water plants for phosphorus precipitation, on the agricultural value of sewage sludge as soil improving agent Jokinen Raili aluminium, cereals, copper, iron, pH, phosphorus, sewage products, soil testing, yields		Completed 4 v.: 1986 - 1989
MTT	Inventoring of soil types and soil nutrient levels (connecting with soil mapping) Urvas Leila clay percentage, distribution of soil, macronutrients, organic matter, pH, soil map, soil types		Completed 9 v.: 1987 - 1995
MTT	Liming for maintenance of soil pH Elonen Paavo liming, pH, soil fertility		Completed 24 v.: 1969 - 1992
MTT	Revision of drainage principles for reducing acidity problems in acid sulfate soils Hakkola Heikki agricultural lime, cereals, drainage, leaching, oats, pH, peat, soils, sulphates		Completed 6 v.: 1984 - 1989
MTT	Silage for growing lambs Sormunen-Cristian Riitta drying, lambs, neutralization, pH, silage		Completed 5 v.: 1985 - 1989
MTT	The differences in chemical properties between till soils and finesand soils Ervi� Raimo finesand, glacial till, macronutrients, organic matter, pH		Completed 5 v.: 1987 - 1991
MTT	The resources of arable land and its conservation Urvas Leila cartography, cultivation, humus, nutrient content, organic matter content, pH, soil types		Completed 5 v.: 1992 - 1996
MTT	The tolerance of buffer capability in different cultivated soils Ervi� Raimo acid rain, chemical analysis, leaching, pH, soil testing, soils, sulphuric acid		Completed 6 v.: 1985 - 1990
HY	Volume transmission mediated by acid/base species in the brain in synaptic function Voipio Juha volume transmission, nonsynaptic transmission, pH, CO2, synapse, brain tissue, neuronal network, metabolism, GABA		Ongoing 1 v.: 1997 -

Data producers