The yield of stems and yield of hemp fiber depending on foliar fertilization
https://doi.org/10.32786/2071-9485-2024-02-04
Abstract
The purpose of the research was to develop elements of the technology of cultivation of seed hemp to obtain a stable and high-quality fiber harvest.
Introduction. Seed hemp, with its multipurpose use, is one of the main sources of fiber or hemp, since the proportion of stems in a hemp plant is 60%, and the amount of fiber in them reaches 28-32%, which is 10 times stronger than cotton. A wide range of manufactured products from technical hemp fiber makes this crop very promising for representatives of the agricultural business. But in order to fully realize its biological potential, it is necessary to introduce modern elements of cultivation technology. One of these methods is the lowcost foliar top dressing in various phases of plant development with environmentally friendly preparations in low concentrations. Therefore, the purpose of the research was to develop elements of the technology of cultivation of seed hemp to obtain a stable and high-quality fiber harvest.
Object of research is the seed variety Surskaya.
Materials and methods. Studies to determine the effectiveness of foliar processing of seed hemp were carried out at Konoplex Penza LLC in 2019-2021 on leached chernozem according to generally accepted methods. The quality of the fiber, having previously separated it from the bonfire, was determined according to GOST 9993-2014 (GOST 9993-74) "Short hemp. Technical specifications" with changes 1 and 2.
Results and conclusions. Due to the effect of interaction of factors, the highest yield of stems of 8.50 t/ha was obtained from foliar treatments of hemp in the phase of three pairs of real leaves, followed by budding with preparations of K-Humate-Na with trace elements and Agree's "Magnesium", affecting the accumulation of fiber in the stems up to 27.8%, providing at the same time, its maximum yield is 2.37 t/ha. A noticeable effect on the breaking load of the fiber, which amounted to 30.0 kgf, was exerted by double foliar
About the Authors
V. A. Guschina
Penza State Agrarian University
Russian Federation
Russian Federation
Guschina Vera Aleksandrovna, Doctor of Agricultural sciences, Professor, faculty of Agronomy, Department of Plant Production and Forestry,
440014, Penza, Botanicheskaya st., 30
A. D. Smirnov
Konoplex Penza LLC
Russian Federation
Russian Federation
Smirnov Anton Dmitrievich, Candidate of Agricultural Sciences, Chief Agronomist,
442150, Penza Region, Nizhny Lomov, Moskovskaya st., 85
G. S. Egorova
Volgograd State Agrarian University
Russian Federation
Russian Federation
Egorova Galina Sergeevna, Doctor of Agricultural Sciences, Professor, Head of the Department of Soil Science and General Biology,
400002, Volgograd, Universitetsky Prospekt, 26
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Review
For citations:
Guschina V.A., Smirnov A.D., Egorova G.S. The yield of stems and yield of hemp fiber depending on foliar fertilization. Title in english. 2024;(2 (74)):36-45. (In Russ.) https://doi.org/10.32786/2071-9485-2024-02-04
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