Tag Archives: plant growth stimulator

255–272 M. Kolesnikov, Yu. Pashchenko, T. Tymoshchuk, N. Plotnytska, N. Hrytsiuk and O. Nevmerzhytska
Integrated application of microbial inoculant and biostimulants enhances pea bioproductivity in semi-arid conditions of the Steppe zone
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Integrated application of microbial inoculant and biostimulants enhances pea bioproductivity in semi-arid conditions of the Steppe zone

M. Kolesnikov¹*, Yu. Pashchenko¹, T. Tymoshchuk², N. Plotnytska², N. Hrytsiuk² and O. Nevmerzhytska²

¹Dmytro Motornyi Tavria State Agrotechnological University, Agrotechnology and Ecology Faculty, Department of crop production and horticulture, 226 Soborny Avenue, UA69006 Zaporizhzhia, Ukraine
²Polissia National University, Agronomу Faculty, Department of Health of Phytocenoses and Trophology, 7 Staryi Blvd., UA10008 Zhytomyr, Ukraine
*Correspondence: maksym.kolesnikov@tsatu.edu.ua

Abstract:

Pea crops are unable to realize their genetic potential, and yields are reduced due to unfavourable abiotic factors inherent in the semi-arid zone. The research aimed to determine the separate and integrated effects of biostimulants and microbial inoculant on the formation of root nodules, assimilation apparatus, and yield of pea of the Devyz variety in the semi-arid conditions of the Steppe of Ukraine. The biostimulants Stimpo (St), Regoplant (Rp), and microbial inoculant Rhyzohumin (Rhh) were used for pre-sowing treatment, and then biostimulants foliar treatment of pea crops was applied in the budding phase at concentrations described in the methodology. It was found that under the combined use of biostimulants with inoculant, the number of nodules and their weight increased by 33–40% and 9–17% respectively, compared with variants where preparations were used separately. The studied preparations increased the leaf area index of pea crops by up to 1.5 times (BBCH 12–17) and 1.6 times (BBCH 51–79). The combined use of Rhh+St and Rhh+Rp allowed the formation of a larger leaf surface area of pea crops. In the case of the integrated effect of Rhh+St and Rhh+Rp, the net productivity of photosynthesis of pea exceeded the indicator of the variants with separate application of the preparations on BBCH 61–79. Improvement of crop structural elements increased pea yield by 3.0%, 4.5%, 7.9%, 17.9%, and 13.9% compared with the control when using Rhh, St, Rp, Rhh+St, and Rhh+Rp, respectively. The obtained data indicate the presence of a combined interaction between biostimulants and microbial inoculant.

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1213-1220 H.S. Martirosyan, A.R. Mikaelyan, N.L. Asatryan and B.G. Babayan
Assessment of ‘Complex–co’ preparation efficiency for some cereal crops growth stimulation
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Assessment of ‘Complex–co’ preparation efficiency for some cereal crops growth stimulation

H.S. Martirosyan¹, A.R. Mikaelyan¹*, N.L. Asatryan¹ and B.G. Babayan¹²

¹Agrobiotechnology Scientific Center’ Branch of Armenian National Agrarian University (ANAU), 1 Isi-Le-Mulino Str., Echmiadzin 1101, Republic of Armenia (RA)
²Armbiotechnology’ Scientific and Production Center (SPC), NAS RA, Gyurjan 14, Yerevan 0056, RA
*Correspondence: aramrmik@yahoo.com

Abstract:

The problem of obtaining environmentally friendly products, which are free from unwanted compounds that are harmful for human health like residual nitrates is very actual. The solution to this problem should be started from the initial stage of crop cultivation: seed disinfection. For that goal the new organic origin preparation ‘Complex-Co’ was used. In current paper the effect of a new plant growth stimulation preparation of complex influence ‘Complex-Co’, was studied on cereal crops cultivation. It was produced by the acidic processing of winemaking waste product: the natural cream of tartar.

Unlike the high risk classical organic and inorganic fertilizers, ‘Complex-Co’ preparation is based on absolutely vital compounds and can be considered ecologically safe. It contains: amino derivatives of natural tartaric acid (TA), coalmine and micro-nutrient elements, which provide the target properties and improve soil behavior. The effect of ‘Complex-Co’ preparation was studied on three common agricultural crops: barley, emmer and triticale. As a result of the experiments and field-trials it was proved as an effective preparation for root and foliar nutrition of crops. After the usage of the elaborated preparation the significant growth stimulation effect was observed for all the tested cereal crops. Also, the disinfection effect of ‘Complex-Co’ preparation was observed for the seeds of the tested plants.

The preparation is being recommended for the further research of its effect on various plants cultivation in farms, greenhouses and orangeries.

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