Tag Archives: field experiment

106-119 G.Z. Ibiev, O.A. Savoskina, S.I. Chebanenko, O.О. Beloshapkina and I.A. Zavertkin
Application of environmentally safe chemical reclamation on an innovative basis in Russia
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Application of environmentally safe chemical reclamation on an innovative basis in Russia

G.Z. Ibiev¹*, O.A. Savoskina², S.I. Chebanenko³, O.О. Beloshapkina³ and I.A. Zavertkin²

¹Russian state agrarian University named after K.A. Timiryazev, Institute of Economics and Management of Agro-Industrial Complex, Department of Economics, 47 Timiryazevskaya Str., RU127550 Moscow, Russia
²Russian state agrarian University named after K.A. Timiryazev, Institute of Agrobiotechnology, Department of Agriculture and Experimental Methods, 47 Timiryazevskaya Str., RU127550 Moscow, Russia
³Russian state agrarian University named after K.A. Timiryazev, Institute of Agrobiotechnology, Department of Plant Protection, 47 Timiryazevskaya Str., RU127550 Moscow, Russia
*Correspondence: gibiev@rgau-msha.ru

Abstract:

In the context of world food crisis, potato production and increasing its yield is an urgent topic of research. In agricultural production, one of the most basic directions of increasing production is the introduction of organic and mineral fertilizers. The purpose of the study is to develop agro-methods for the use of environmentally friendly biopolymers when applying mineral fertilizers for the effective cultivation of potato and to determine production efficiency. To end this purpose, two field experiments and one control variant without the use of biopolymers were used in our study to assess the effect of Nutricharge and Growgreen preparations on the yield of Gala potato variety. To obtain reliable experimental results, several of the following requirements were considered: representativeness, accuracy, and compliance with the principle of single difference. Experiment No. 1 – treatment of ammonium nitrate phosphate fertilizer with Nutricharge at the rate of 3 kg per 1 ha. As a result of the Nutricharge biopolymer application, the biological yield of potato increased by 83.5 c ha-1. Experiment No. 2 – treatment of mineral fertilizers with Nutricharge and Growgreen, 2.5 L ha-1. As a result of the biopolymers application, the biological yield of potato in this experiment exceeds the control data by 237.5 c ha-1. At the same time, the yield in the second experiment turned out to be higher than the yield in the first experiment by 154 c ha-1. An equally important task in conducting this study was to determine, with the help of economic assessment, the production efficiency of biopolymers application. As a result of economic analysis, we found out that the complex use of preparations allowed to reduce the cost of production of 1 ton of potato in the first experiment by 21%, in the second – by 7.7% compared with the control. Cost reduction and revenue increase in the second experiment allowed to make a profit from 1 ha of 298,020 rubles, and in the first – 221,440 rubles. The obtained research data give us reason to say that the use of biopolymers Nutricharge and Growgreen is effective and their scale should be spread throughout the entire region of the country.

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1359–1367 V.B. Minin, V.D. Popov, D.A. Maksimov, A.A. Ustroev, S.P. Melnikov and E. Papushin
Developing of modern cultivation technology of organic potatoes
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Developing of modern cultivation technology of organic potatoes

V.B. Minin¹*, V.D. Popov¹, D.A. Maksimov¹, A.A. Ustroev¹, S.P. Melnikov² and E. Papushin¹

¹Institute for Engineering and Environmental Problems in Agricultural Production, – BFSBSI ‘Federal Scientific AgroEngineering Centre VIM’, Filtrovskoe shosse, 3, p.o. Tiarlevos, RU196625 Saint-Petersburg, Russia
²St. Petersburg State Agrarian University, building A2, Peterburgskoe shosse, Pushkin, RU196601 Saint-Petersburg, Russia
*Correspondence: minin.iamfe@mail.ru

Abstract:

Medium term field experiment demonstrates the effectiveness of biological ways to increase potatoes yield on the sod-podzolic, light loamy soil.
The effects of the following two groups of factors were studied:
1. The level of mineral nutrition provided by compost;
2. Microbiological pant protection product (bio preparations): Flavobacterin which has N fixer attribute and Vitaplan and Kartofen, which have bio fungicide features.
Potatoes varieties ‘Nevsky’ and ‘Udacha’ were cultivated. The compost was applied in the dose range from 0 to 160 kg N ha-1. Treatment with bio-preparations was carried out by potato tubers during planting and leaves during the growing season. Weeds were removed mechanically. Weather conditions had a significant impact on the formation of the crop. The average yield of standard potato tubers for 2017–2018 ranged from 14.1 to 29.3 t ha-1. The use of both microbiological preparations and compost gave approximately the same effect and increased yields by 35–37% compared to the control. The use of compost together with bio-preparations provided an output of 27.6–29.3 t ha-1 of potatoes. In 2019, the joint use of compost and bio-preparations allowed to reach a yield of 40 tons ha-1 of marketable potatoes. On the basis of the obtained data, the mathematical dependencies of the yield of potatoes on the dose of compost, the type of biological preparation and the complex indicator of the year conditions were determined.

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133–143 A. Karlsons and A. Osvalde
Effect of foliar fertilization of microelements on highbush blueberry (Vaccinium corumbosum L.) nutrient status and yield components in cutover peatlands
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Effect of foliar fertilization of microelements on highbush blueberry (Vaccinium corumbosum L.) nutrient status and yield components in cutover peatlands

A. Karlsons* and A. Osvalde

Institute of Biology, University of Latvia, Laboratory of Plant Mineral Nutrition, Miera street 3, LV-2169 Salaspils, Salaspils municipality, Latvia
*Correspondence: andis.karlsons@lu.lv

Abstract:

The commercial cultivation of highbush blueberry in Latvia was successfully started during the last 20 years. In 2018, there was an estimated 280 ha of highbush blueberries planted in Latvia with increasing annual hectarage. In general, blueberry is a highly specialized crop that has definite soil agrochemical and climatic requirements: it has low nutrient needs and is sensitive to excessive nutrient levels in the soil. However, balanced and precise mineral nutrition is essential for producing high and quality yield. The study was conducted in the producing planting of highbush blueberry, cultivar ‘Patriot’, during the vegetation season of 2018. The research was carried out to determine the effect of foliar fertilization with micronutrients (Fe, Zn, Cu, Mo, B) on the productivity, the content of mineral elements in leaves and photosynthesis of blueberries. Field experiment design included foliar fertilizer treatments 0 to 3 times per season. In general, our results revealed that foliar sprays with micronutrients had a positive effect on the berry yield, parameters of photosynthesis and microelement content in leaves of highbush blueberry. It was determined that the application of the foliar fertilizer 4 times per season provided the highest berry yield (134% compared to control) and the highest photosynthetic activity of plants. Our study suggests that correct foliar fertilization can optimize the content of Fe, Zn and B in blueberry leaves.

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