INFLUENCE OF FERTILIZATION VARIANTS ON THE YIELD AND SEED QUALITY OF WINTER RAPE VARIETIES

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Visnyk LNAU: Agronomy 2021 №25: 125-130

INFLUENCE OF FERTILIZATION VARIANTS ON THE YIELD AND SEED QUALITY OF WINTER RAPE VARIETIES

Stelmakh O., Senior Research Officer
ORCID ID: 0000-003-2562-3530
Kyforuk I., Senior Research Officer
ORCID ID: 0000-0002-6268-3586
Precarpathian State Agricultural Research Station of the Institute of Agriculture of Carpathian Region of the NAAS
Hryhoriv Ya., Candidate of Agricultural Sciences
ORCID ID: 0000-0002-5892-9483
Vasyl Stefanyk Precarpathian National University

https://doi.org/10.31734/agronomy2021.01.125

Annotation

The influence of fertilization on the yield and seed quality of winter rape varieties (Cheremosh, Smarahd, Dembo) was studied During 2016–2018.

As a result of the research, it is established that the highest productivity is received on a variant with introduction of fertilizers N75P75K75 + N60 + Pennant (500 g/hectare) + Oracle multicomplex (1 l/hectare) + Oracle sulfur active (2,0 l/hectare) (vegetation restoration phase) + Oracle colamine boron (1,0 l/ha) variety Cheremosh 3,74 t/ha, which is 2.64 t/ha higher than the control. It was found that the yield of 3.6 and 3.53 t/ha was obtained by growing Smaraht and Dembo varieties in this variant, which is respectively 236.4 and 239.4 % before control.

It was determined that during the cultivation of winter rape varieties on 4 variants of fertilizer the largest number of pods on the plant was observed, i.e. on the Cheremosh variety it was 133.1 pcs, Smarahd – 130.4 pcs, Dembo – 123.05 pcs. The number of seeds per pod. was also the largest, particularly, the Cheremosh variety – 23.05 pcs, Smarahd – 22.5 pcs, Dembo – 22.5 pcs, weight of 1000 seeds was 3.64 g, 3,63 g and 3.62 g respectively.

The highest oil content, i.e.48.91 % was observed under cultivation of the Dembo variety under control, the content of glucosinolates of seeds belongs to the first class and is intended for food purposes in the case of industrial processing. It was found that the application of mineral fertilizers led to a decrease in the oil content in rapeseed and amounted to 4 variants of fertilizer (N75P75K75 + N60) Cheremosh variety – 47.06 %, Smarahd – 46.2 %, Dembo – 47.81 %, but due to the higher the yield of the crop, the higher its yield per hectare.

The application of different doses of mineral fertilizers led to an increase in the content of glucosinolates by an average of 0.4–1.1 μmol/g Cheremosh variety, Smarahd variety by 0.6–1.3 μmol/g, Dembo by 0.5–1.2 μmol/g.

It was found that the content of unsaturated fatty acids in the seeds ranged from: oleic (C 18:1) – from 70.10 to 70.77 %, Cheremosh variety from 69.72 to 70.22 %, Smarahd variety from 70.21 to 72.53 % of the Dembo variety; linoleum (C 18:2), respectively, from 18.52 to 20.83, from 18.74 to 19.71 %, from 17.44 to 18.79 %.

Key words

fertilizers, rape, yield, varieties, quality

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