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Fertilization experiments with N, P and K for potatoes in Hedmark and Oppland



Fertilization experiments with N, P and K for potatoes in Hedmark and Oppland



Forskning og Forsoek i Landbruket 23(3): 181-201



Fertilizer trials with potatoes, mostly Kerrs Pink, were carried out in S.-central Norway in 1950-68. In the 34 trials including f.y.m., a total of 40, 80 or 120 kg N, 45, 61 or 77 kg P and 133, 174 or 215 kg K/ha were applied, while in 10 trials without f.y.m. the rates were 40, 80 or 120 kg N, 0, 24 or 47 kg P and 0, 62 or 123 kg K/ha. Where planting took place before 20 May the highest yield was obtained at 120 kg N/ha, whereas for late May planting 80 kg N/ha was best.

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Related references

Fertilization experiments with N , P and K for potatoes in the counties Hedmark and Oppland. 1972

Fertilization experiments with nitrogen phosphorus and potassium for potatoes in the counties hedmark and oppland. Forskning og Forsok i Landbruket 23(3): 181-201, 1972

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