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, А.К. Shokan, Serik Barmenbekovich Kenenbayev, Gulvira Yessenbayeva, Assiya Serikbayeva

2023

Full text Open access: Gold Metadata (CSL-JSON)

DOI 10.3390/su16010162

Data confidence 85 high

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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.