Relationship between Yield and Nutrient Uptake from Early Potatoes at Increasing Norms Fertilization

H. Boteva

Abstract: A field attempt with early potatoes variety Nadezda was carried on Strongly Leached Meadow-cinnamon Soil, in the Maritsa Vegetable Crops Research Institute, Plovdiv. It was tested the following rates: 0, 80, 160 and 240 kg N/ha that are input separately and rates on phosphorus background: 0, 80, 160 and 240 kg P2O5/ha and also selected variants for potassium: 0, 80, and 160 kg K2O/ha.
As a result of the experiment was established that for the formation of a unit potato produce it is necessary: nitrogen – from 3.07 kg to 8.52 kg; phosphorus – from 1.72 kg to 2.97 kg and potassium – from 5.91 kg to 10.85 kg.
The correlation between yield and absorbed amount of nutrients being necessary for obtaining of the yield was established by regression equations.
Key words: early potatoes, norms of fertilization,

Keywords: early potatoes; norms of fertilization; nutrient uptake; yield

Date published: 2017-03-07