Haku
Viitteet 1-2 / 2
Control of manganese deficiency in sugar beet by placement of a manganated compound fertilizer
(Suomen maataloustieteellinen seura, 1986)
The effect of method of fertilizer application on sugar beet yield, yield guality and fertilization reguirement in Finland
(Suomen maataloustieteellinen seura, 1991)