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S.N. Marich, N.A. Babich, I.M. Babkin, Yu.G. Habarov Complete text of the article:Download article (pdf, 0.5MB )UDС630*232.325.24DOI:10.17238/issn0536-1036.2015.3.59AbstractAs an analogue to already existing herbicides, we propose the use of technical lignosul-fonates, which are salts of lignosulfonic acids, a byproduct from wood pulp production us-ing sulfite pulping. Unlike other technical lignins, lignosulfonates are well soluble in water, which determines their wide range of use, including as an environmentally safe analog to herbicides.Field experiment were preceded by laboratory tests conducted to evaluate the impact of lignosulfonates on seed germination of Picea abies (L.) Karst, as well as to deter-mine the optimal concentration of the most effective weed suppressive types of lignosul-fonates. After preliminary tests of various types of lignosulfonate, three of them were used for further experiments: nitrosatet technical lignosulfonate, chlorinated technical lignosul-fonate, and nitrated technical lignosulfonate (10 % concentration). The field experiments were carried out in the Kadnikov forest nursery (Vologda region). Control areas were hand-weeded, processed with the herbicides «Roundup» or «Zelek».Two- and three-year old seedlings of Picea abies in the nursery at the control areas had as shoot-root ratio of 2,4:1 and 3,7:1 respectively. Using lignosulfonates gave similar results. The use of conventional herbicides gave more effect; in the case of «Zelek» it was 2,6:1 and 4,3:1. Evaluating the results, we revealed an optimal concentration for the most suitable lignosulfonate, with a limited impact on the seedlings, but having a great effect on the weeds – chlorinated tech-nical lignosulfonate at a concentration of 10%.AuthorsS.N. Marich, Magistracy Student N.A. Babich, Doctor of Agriculture, Professor I.M. Babkin, Candidate of Chemistry Yu.G. Habarov, Doctor of Chemistry, ProfessorAffiliationNorthern (Arctic) Federal University named after M.V. Lomonosov, Naberezhnaya Severnoy Dviny, 17, Arkhangelsk, 163002, Russia; e-mail: marich.svetlana@inbox.ruKeywordstechnical lignins, herbicide, weeds, forest nursery.References1. Egorov A.B., Bubnov A.A. Sistema gerbitsidov dlya ukhoda za posevami khvoynykh porod v lesnykh pitomnikakh [Herbicidal System for Coniferous Seedings in Forest Nurseries]. Lesnoy zhurnal, 2013, no. 5, pp. 71–77. 2. Popov S.Ya., Dorozhkina L.A., Kalinin V.A. Osnovy khimicheskoy zashchity ras-teniy [Bases of the Chemical Plant Protection]. Moscow, 2003. 208 p. 3. Rodin A.R., Gribkov V.V., Nikitina A.V. Optimal'noe sootnoshenie nadzemnoy biomassy posadochnogo materiala i kornevykh sistem khvoynykh porod [The Optimal Ratio of Seed’s Ground Biomass and Root Systems of Coniferous Species]. Lesokhozyaystvenna-ya informatsiya, 1974, no. 15, pp. 13–14. 4. Spisok pestitsidov i agrokhimikatov, razreshennykh k primeneniyu na terri-torii Rossiyskoy Federatsii [List of Pesticides and Agrochemicals Permitted for Use in the Rus-sian Federation]. Prilozhenie k zhurnalu «Zashchita rasteniy», Moscow, 2013. 636 p. 5. Charudattan R., Dinoor A. Biological control of weeds using plant pathogens: accomplishments and limitations. XIVth International plant protection congress. Crop-Protection. 19: 8-10. Jerusalem, Israel, 2000, pp. 691–695. 6. Guillemin J.P., Gardarin A., Granger S., Reibel C., Munier-Jolain N., Colbach N. Assessing potential germination period of weeds with base temperatures and base water potentials. Weed Research, 2012, Vol. 53, Iss. 1, pp. 76–87. 7. Kondrashkina M.I. Dynamics of species composition and abundance of weeds on the sequence plow land; long fallow; plowland, AGRO XXI, 2013, Iss. 1, pp. 11–13. 8. Owston P.W., Abrahamson L.P., Landis M.L. and T.D. Weed Management in Forest Nurseries. Forest Nursery Manual: Production of Bareroot Seedlings. The Hague/Boston/Lancaster, for Forest Research Laboratory. Oregon State University, Corval-lis, 1984, pp. 193–202.Impact Assessment of Modified Lignosulfonate for the Vegetation of Weeds and Picea abies Seedlings in Forest Tree Nurseries |
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