OPPORTUNITIES FOR INCREASED YIELDS IN CONDITIONS OF BIOLOGICAL FARMING SYSTEMS IN WHEAT
Abstract
The study was conducted on the experimental field of IPGR "K. Malkov"-Sadovo in the period 2012-2014, the competitive variety trials is displayed on the block method in three repetitions with the size of the experimental plots 10 m2. In an attempt involved 22 varieties of winter wheat breeding program in Sadovo, the old variety 301 as a control and the standard variety Enola. They are grown in conventional and certified organic field. Biometric characteristic was taken on 15 plants of wheat each repetition. Processing of the results obtained are used analysis of variance, correlation and regression analysis. All applied statistical methods were performed using SPSS 19. Grain yield derived from varieties grown in organic field averaged 15.5% lower than in the conventional field and averaged 6,29 t/ha. Highest productivity in both farming systems show varieties which gave 6.5 and 7 t/ha grain–Yunak, Liusil, Boriana, Momchil, Geia-1, Zarevetc and Diamant.
Full Text:
PDFReferences
Agraren doklad na MZH. 2011. Sastoyanie na biologichnoto zemedelie v Balgariya prez 2010 g. 56-57.
Agraren doklad na MZH, 2014. Sastoyanie na biologichnoto zemedelie v Balgariya prez 2013 g. 54-57.
Bozhanova, V., D. Dechev. 2009. Problemi i perspektivi svarzani s otglezhdaneto na zhitni vidove po biologichen nachin. Mezhdunarodna nauchna konferentsiya, 4-5 yuni, Stara Zagora. Selskostopanska nauka. tom.1, 322-327.
Lidanski, T., 1988. Statisticheski metodi v biologiyata i v selskoto stopanstvo. Sofiya – Zemizdat 43-52, 135-160.
Shanin Y., 1977. Metodika na polskiya opit. BAN, Sofiya.
Konvalina, P., Stehno, Z., J. Moudry. 2009. The critical point of conventionally bread soft wheat varieties in organic farming systems. Agronomy Research 7 (2), 801-810.
Lammerts van Bueren et al., 2002; 49.Lammerts van Bueren, T., Struik, C., E. Jacobsen. 2002. Ecological aspects in organic farming and its consequences for an organic crop ideotype. Neth J.Agric Sci.50:1–26.
Mader, P., Fliessbach, D., Dubois, D., Gunst, L., Fried, P., U. Niggli. 2002. Soil fertility and biodiversity in organic farming. Science 296:1694–1697.
Mader P. et al. Soil organic matter and biological soil quality indicators after 21 years of organic and conventional farming. Agriculture, Ecosystems & Environment Volume 118, Issues 1–4, Pages 273-284 (January 2007)
Murphy KM, Campbell KG, Lyon SR, Jones SS (2007) Evidence of varietal adaptation to organic farming systems. Field Crop Res 102:172–177
Schwaerzel R, Levy L, Menzi M, Anders M, Winzeler H, Dörnte J (2006) Winterweizensorten im biologischen und extensiven Anbau. Agrar Forschung 13:68–73
Wolf, M.S., J.P.Baresel., D.Descaux., I.Goldringer., S.Hoad., G.Kovacs., F.Loschenberger., T. Miedaner., H. Ostergard., E.T. Lammerts van Bueren. 2008. Developments in breeding cereals for organic agriculture, Euphytica 163, 323-346.
Refbacks
- There are currently no refbacks.
New knowledge Journal of science is financed by the National Science Fund of the Republic of Bulgaria - contract № КП-06-НП1/5 of 17.12.2019 in the competition of Bulgarian scientific periodicals – 2019
New knowledge Journal of science is financed by the National Science Fund of the Republic of Bulgaria – contract № ДНП 05/52 от 22.12.2016 in the competition of Bulgarian scientific periodicals – 2016
The contents of this publication do not necessarily reflect the position or opinion of the National Science Fund of the Republic of Bulgaria. The opinions expressed are those of the author(s) only and should not be considered as representative of the National Science Fund’s official position.