Indian Journal of Agricultural Research

  • Chief EditorV. Geethalakshmi

  • Print ISSN 0367-8245

  • Online ISSN 0976-058X

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  • SJR 0.293

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Indian Journal of Agricultural Research, volume 54 issue 1 (february 2020) : 77-82

Productivity of Pear Plantings Depending on the Content of Main Macroelemants (n, p, k) in the Soil after Optimized Fertilization

R.V. Yakovenko, P.G. Kopytko, I.P. Petrishina, R.M. Butsyk, V.V. Borysenko
1Uman National University of Horticulture, 1 Institute, 20305, Uman, Ukraine.
Cite article:- Yakovenko R.V., Kopytko P.G., Petrishina I.P., Butsyk R.M., Borysenko V.V. (2019). Productivity of Pear Plantings Depending on the Content of Main Macroelemants (n, p, k) in the Soil after Optimized Fertilization. Indian Journal of Agricultural Research. 54(1): 77-82. doi: 10.18805/IJARe.A-454.
The results of changes in the yield and quality of pear fruit on the clone rootstock of A quince grown again after a logged-off old pear tree garden using optimum levels of N and K2O content in the rooting soil layer in the presence of P2O5 in it more optimal level without fertilizers are given. Norms of nitrogen and potassium fertilizers are calculated on the basis of agrochemical soil analyzes in such quantities to compensate for the lack of N-NO3 (in terms of nitrification capacity of the soil) and available K2O forms for plant nutrition and bring their content to the optimal levels determined by studies for apples and recommended for pears. The studies have established that pear fertilizers are calculated on the basis of agricultural chemical analysis of soil with fertilizer standards containing only those elements and in such quantities that are not sufficient in the soil for optimal nutrition of trees, contribute to a significant increase in the yield of fruits with less technological costs. Accordingly, higher profitability of production and safety for the ecological state of the environment are ensured, compared to the annual introduction of the recommended norm of N90Ð60Ê90.
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