Effects of Organic Fertilizers on the Quality, Yield, and Fatty Acids of Maize and Soybean in Southeast Kazakhstan

Maxat Toishimanov (), Zhulduz Suleimenova, Nurgul Myrzabayeva, Zhanna Dossimova, Aksholpan Shokan, Serik Kenenbayev, Gulvira Yessenbayeva and Assiya Serikbayeva ()
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Maxat Toishimanov: Kazakh National Agrarian Research University, Almaty 050010, Kazakhstan
Zhulduz Suleimenova: Kazakh National Agrarian Research University, Almaty 050010, Kazakhstan
Nurgul Myrzabayeva: Kazakh National Agrarian Research University, Almaty 050010, Kazakhstan
Zhanna Dossimova: Kazakh National Agrarian Research University, Almaty 050010, Kazakhstan
Aksholpan Shokan: Institute of Genetic and Physiology, Almaty 050040, Kazakhstan
Serik Kenenbayev: Kazakh National Agrarian Research University, Almaty 050010, Kazakhstan
Gulvira Yessenbayeva: Kazakh National Agrarian Research University, Almaty 050010, Kazakhstan
Assiya Serikbayeva: Kazakh National Agrarian Research University, Almaty 050010, Kazakhstan

Sustainability, 2023, vol. 16, issue 1, 1-20

Abstract: This paper presents the effects of organic fertilizers on the yield, quality, and fatty acid composition of maize and soybean in 2022 in Southeast Kazakhstan. Maize and soybean yields were improved by commercial organic fertilizers. In general, the yield, quality, and fatty acid (FA) parameters of both crops were influenced by various types of organic fertilizers. The application of HansePlant fertilizer allowed for an increase in the yield of maize seed by 47% and soybean by 31%. Organic fertilizers improved the quality parameters fat, protein, fiber, and starch in maize by 35%, 22%, 14%, and 8%, respectively, compared to control samples. In soybean, the parameters fat, protein, and fiber were improved by 20%, 3%, and 11%, respectively. The FA compositions of maize and soybean were analyzed via gas chromatography and with tandem mass spectrometer using a polarity column. Compared with no fertilization conditions, the omega-6/omega-3 ratio showed the lowest value in maize (22.40–123.96) and soybean (3.26–4.07). A study of the fatty acid composition groups compared with different fertilizer treatments was performed.

Keywords: maize; soybean; yield; fatty acid; protein; fat; gas chromatography; mass spectrometry; organic fertilizer (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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