Open AccessEfficiency of hop (Humulus L.) growing without cutting of main roots depending upon the underground plant part.
Author(s) -
Олександр Богданович Остроменський,
Олександр Петрович Стецюк,
Микола Георгійович Михайлов,
Леся Петрівна Кириченко,
Іван Михайлович Панченко
Publication year - 2021
Publication title -
agroèkologičeskij žurnal
Language(s) - English
Resource type - Journals
eISSN - 2077-4915
pISSN - 2077-4893
DOI - 10.33730/2077-4893.1.2021.227253
Subject(s) - hectare , shoot , hop (telecommunications) , tonne , horticulture , yield (engineering) , mathematics , biology , environmental science , engineering , ecology , physics , telecommunications , agriculture , thermodynamics , waste management
Cutting of main roots in the hop cultivation process is one of the most energy-intensive agrotechnical operations. And it is necessary to execute it in a short time during spring work. The purpose of this research was to determine the efficiency and influence of hop growing without cutting of the main roots in different development terms of shoots in the underground plant part during the spring period on the forming of the yield, cones quality and sparing of human labor and production costs. Research methods used were: field tests, laboratory tests, statistic analysis methods. Resultsof the scientific research proved the possibility of hop growing without cutting of the main roots in conditions of the Ukrainian Northern forest-andsteppe and Polissia zone. It was stated, that the highest broken of shoots percentage (86.9– 88.5%), which enhances yield +0.9 metric Centner from hectare, or +4.3% in comparison with the traditional technology, was recorded in the variants with uncut roots during the spring period until their appearance on the soil surface with the length of 3–5 cm. In the variants with uncut roots with the presence of eyes in the underground plant part and shoots which spread on the soil surface, the percentage of broken off shoots reached 20.0–26.5, and in this case caused the yield reduction of 1.0–1.8 metric Centner from hectare, or by 4.8–8.6% lower than in the control field. Alpha acids content in the hop cones in all given variants was practically identical and made 5.1–6.0%. Calculation of economic efficiency demonstrated, that hop growing technology without cutting of main roots offers the possibility to cut down the time limits (terms) used for this operation, spare human labor by 170 worker/hours and receive pure profit of 6.4 thousands Ukrainian Hryvnia for 1 Ha of hop garden, without losses in quantity and quality of hop cones. It is economically profitable to grow hops without cutting the main roots in comparison with the traditional hop growing technology.