Оцінка ефективності використання нових культур для стабілізації системи ґрунт–рослина за умов алелопатичної післядії

• Datum: 2014
• 1. Verfasser: Pavliuchenko, N.A.
• Format: Artikel
• Sprache: English
• Veröffentlicht: M.M. Gryshko National Botanical Garden of the NAS of Ukraine 2014
• Online Zugang: https://www.plantintroduction.org/index.php/pi/article/view/242
• Назва журналу: Plant Introduction

Effect of organic matter of new crops as green-manure on physiological and biochemical properties of soil-plant system under lilac (Syringa vulgaris L.) allelopathic post-action was studied. Lilac seedlings were grown for 17 months under greenhouse conditions in pots with grey forest soil collected after long-term lilac cultivation. Green-manure as biomass of Raphanus sativus var. oliefera L., Sinapis alba L., Sida hermaphrodita Rusby., Rumex patientia L. × R. tianschanicus A. Los. was applied at 5 % to soil weight. The soil without green-manure was used as control. Decrease in free phenolic substances concentration and simultaneous increase in oxidation-reduction potential, humus and free amino acids contents in soil during decay of the new crops biomass were observed. Application of the green-manure reduced soil phytotoxicity, which led to increase in the lilac seedlings growth. Decay products of organic residues of the new crops promoted accumulation of photosynthetic pigments – chlorophylls (chlorophyll b mainly) and carotenoids in leaves, which raised adaptability of the seedlings to lilac allelopathic post-action. Efficacy of use as the greenmanure of Raphanus sativus var. oliefera and Sinapis alba was higher as compared with Rumex patientia × R. tianschanicus and, especially, Sida hermaphrodita.