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Effects of sewage sludge and trickle irrigation on black currants


, : Effects of sewage sludge and trickle irrigation on black currants. Forskning og Forsok i Landbruket 37(1): 45-52

The effects of sewage sludge application (0-90 t DM/ha) to the soil in autumn 1977 and trickle irrigation over 5 years were studied in black currants (cv. Silvergieter) planted in 1978. Sludge application significantly increased shoot growth in 1979, 1980 and 1982, yields in 1980 and 1981, and leaf N concentration in 1979. The effects of sludge application were significant only at 60 and 90 t DM/ha; differences between these 2 rates of application were small.

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