Tag Archives: fertilizing system

1199-1212 O. Litvinova, S. Dehodiuk, D. Litvinov, O. Havryliuk, A. Kyrychenko, N. Borys and O. Dmytrenko
Efficiency of technology elements for growing winter wheat on typical chernozem
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Efficiency of technology elements for growing winter wheat on typical chernozem

O. Litvinova¹, S. Dehodiuk², D. Litvinov¹, O. Havryliuk¹*, A. Kyrychenko², N. Borys³ and O. Dmytrenko⁴

¹National University of Life and Environmental Sciences of Ukraine, Agrobiological faculty, 12А, 13 Heroiv Oborony Str., UA03041 Kyiv, Ukraine
²National Scientific Centre Institute of Agriculture of National Academy of Agricultural Scienses, 2-B Mashynobudivnykiv Str., UA08162 Chabany, Kyiv region, Ukraine
³National Academy of Agrarian Sciences of Ukraine, Scientific staff and post-graduate studies Department, 9 Omelyanovich-Pavlenko Str., UA01010 Kyiv, Ukraine
⁴State Institution Soils Protection Institute of Ukraine, 3 Babushkina lane, UA03190 Kyiv, Ukraine
*Correspondence: o.havryliuk@nubip.edu.ua

Abstract:

The use of traditional tillage technologies in short-rotational crop rotations increases the cost of agricultural production and has a negative impact on the environment. The research was aimed at establishing and improving the ways winter wheat yield increase in short-rotational crop rotations depending on the efficiency of the main tillage system and fertilizing on typical chernozems s in conditions of unstable moisture in the Forest Steppe of Ukraine. The research was conducted at the Department of Agrochemistry National Scientific Centre Institute of Agriculture of National Academy of Agricultural Scienses at the Panfil Research Station of the National Scientific Center Institute of Agriculture of the National Academy of Agrarian Sciences in a stationary technological experiment, on typical low-humus chernozem in 2 short rotation crop rotations with the following crops rotation: crop rotation 1 – winter rape (Brassica napus L.), winter wheat (Triticum aestivum L), grain maize (Zea mays), spring barley (Hordeum vulgare L); crop rotation 2 – soybean (Glycine max (L.) Merrill), winter wheat (Triticum aestivum L), sunflower (Helianthus annuus), spring barley (Hordeum vulgare L). The article presents the results of research in two short-rotation crop rotations with the placement of winter wheat (Triticum aestivum L) after winter rape (Brassica napus L.) and soybean (Glycine max (L.) Merrill) against the background of two tillage systems: ploughing (25–27 cm) and no-till (direct sowing). The impact of different methods of soil cultivation and fertilizing systems on the humus content and nutrient regime of typical chernozems in the agrocenosis of winter wheat was determined. It was established that in winter wheat, placed after winter rapeseed and soybeans, there is a tendency to increase the humus content under zero tillage up to 15% relative to the control (without fertilizers) and from 5–14% relative to moldboard tillage (25–27 cm ploughing). The most effective in nutrient accumulation was fertilizing system N(90)P2О5(90)K2О(90) applied after rape and after soybean. Respectively, the content of mobile phosphorus compounds increased by 10–18% and potassium by 1.3–2.0 times compared to the control (without fertilizers) with the advantage of no-tillcultivation technology. The given comparative assessment of the yield formation of winter wheat when growing it after different pre-crops showed that the average yield of winter wheat grain in both cultivations on the control option for the soybean pre-crop was 3.55 t ha-1 and 4.00 t ha-1 for rape. The highest increases in grain yield on average over the years of research were provided by the fertilizing system of 50–54% (N(90)P2О5(90)K2О(90)) for growing winter wheat after soybeans and 39–47% (N(90)P2О5(90) K2О(90)) on the winter rape
pre-crop with the advantage of moldboard tillage (ploughing) in crop cultivation technologies. The fertilizing system with the introduction of N(16)P2О(16)K2О(16) has the prospect of spreading because, in terms of the formation of typical indicators of chernozem fertility and the yield of winter wheat grain, it approaches technologies with the introduction of N(120)P2О5(90–60)K2О(100–90) with significant cost savings for mineral fertilizers.

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