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Effect of N and P fertilizers on growth of apple rootstocks in pot culture

Proceedings of the International Conference Fruit Production and Fruit Breeding, Tartu, Estonia, 12-13 September, 2000: 80-83

Effect of N and P fertilizers on growth of apple rootstocks in pot culture

Results of outdoor pot culture experiments on clonal apple rootstock 54-118 grown on a 3:1 mixture of soil:sand are presented. The first experiment showed that plants need P especially at the beginning (1-1.5 months) of the growing season and N after this time. In the second experiment plants showed poor growth when NH4NO3 was applied on the surface of the soil:sand mixture containing superphosphate, because after surface application of NH4NO3 only NO3- penetrates deep in the soil.

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Accession: 003414242

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