Haku
Viitteet 1-5 / 5
Wood, bark, peat and coal ashes as liming agents and sources of calcium, magnesium, potassium and phosphorus
(Agricultural Research Centre, 1991)
The dependence of yield increases obtained with phosphorus and potassium fertilization on soil test values and soil pH
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1980)
Fertility of different mire type groups
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1980)
Fertilizer value of silage effluent
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1987)
Maan happamuus ja kalkintarpeen määrittäminen viljavuusanalyysissa
(Agricultural Research CentreMaaseudun Tulevaisuus, 1966)