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Bulgarian Journal of Crop Science   ISSN 0568-465X
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Soybean productivity by water deficit conditions during different vegetative stages
Radost Petrova, Aleksander Matev
Abstract: The experiment was conducted during 2004 – 2006 period in the experimental field of Agricultural University – Plovdiv. The aim of the study was to determine the influence of different irrigation regime on the productivity of soybean (variety of “Mira”). Following variants were tested: without irrigation; optimum irrigation; without the first, second or third irrigations; only first, second or third irrigation. The additional yield by irrigation conditions is 37–92%. Depending on the amount and distribution of precipitations, reduction of yield by water stress during the flowering is 6 – 29%. From beginning to full seed (R5 – R6) yield losses amounted to 20–23%.
Keywords: soybean; water deficit; irrigation; yield
Date published: 2017-07-06
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