Productivity and economic efficiency of growing hybrids of corn of different groups of maturity in conditions of irrigation

Abstract

The purpose. To determine economic efficiency of elements of technique of growing hybrids of corn of different groups of maturity in conditions of irrigation of South Steppe of Ukraine. Methods. Results of researches spent during 2014-2016 were generalized by systems analysis, field, laboratory, analytical, mathematical-statistical and calculation-comparative methods. Results. Potential is determined of productivity of hybrids of corn of different groups of maturity in conditions of irrigation of South Steppe of Ukraine. Results are given of experimental researches in influence of times of sowing and plant stand on productivity and economic efficiency of growing hybrids of corn of different groups FAO on dark-chestnut soils of South steppe zone of Ukraine at irrigation. Conclusions. It is determined that the maximum indexes of productivity of grain of hybrids of corn of different groups of maturity can be reached at sowing in the third ten-day period of April of hybrid Tendra with plant stand 90 thousand plants/hectare, middleearly ripening Skadovskyi-90, middle-ripening Kakhovskyi-70 thousand plants/hectare. By results of analysis of economic indexes of growing of hybrids of corn for 2014-2016 the cost of gross output for 1 hectares at all terms of sowing and different plant stand was maximum at hybrid Kakhovskyi and made in alternatives of experience 37,7-43,8 thousand hrn/ton, a little bit less-at hybrid Skadovskyi-32,8-38,1, and the lowest-at hybrid Tendra-31,9-35,1 thousand hrn/ton. The minimum cost price of 1 ton of grain was at middle-ripening hybrid of corn Kakhovskyi-1779 hrn/ton at sowing in the third ten-day period of April and with plant stand of 70 thousand plants/hectare. Calculation of economic efficiency of growing hybrids of different groups of maturity testify to the superiority of sowing in the third ten-day period of April of middle-ripening hybrid of corn Kakhovskyi with plant stand of 70 thousand plants/hectare.

Біометричні параметри рослин та продуктивність кукурудзи (Zea mays L.) залежно від строків сівби

“…Дослідженнями проведеними в умовах зрошення півдня України установлено, що максимальну урожайність зерна гібриди кукурудзи різних груп стиглості (ранньостиглий Тендра, середньоранній Скадовський, середньостиглий Каховський) формували за сівби у третій декаді квітня [2].…”

Variability of the grain yield in maize lines – parent components and hybrids for the use of different genetic plasmas on irrigation

“…Кукурудза характеризується пластичністю до ґрунтово-кліматичних умов, що на фоні високої агротехніки обумовлює її стабільну врожайність [3]. Підбір гібридів, адаптованих до відповідних зон дозволяє отримати прибавку врожаю до 20-50 % [4].…”

Productivity of Corn Hybrids in the Conditions of the Western Forest-Steppe of Ukraine

“…The leader in grain production is maize -a crop of a wide range of application, used in 60% for animal feed, 25% for nutrition, and the rest -for industrial processing, as described in the studies of Dziubetskyi et al (2020), Belov (2018) and Vozhegova et al (2018). The leading role of maize lies not only in the efficiency of grain production, but also in the economic growth of the livestock industry, as Mason et Ya.…”