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2018, № 73

UDC: 631.535.2:635.925:631.8
GSNTI: 68.35.57

Biologization of Campsis radicans (L.) Seem. ex Bureau cutting growing

The data of three-year field experiments in annursery for the cultivation of seedlings of the decorative liana Campsis radicans (L.) Seem. ex Bureau with the use of biofertilizers - microbial preparations (MP), as well as their combination with humicorgano-mineral fertilizers have been presented in the articles. It was shown that MP Azotobacterin and Phosphoenterinwere most effective: increase the survival rate of C. radicans cuttings by 20-50%, the output of standard cuttings by 40-60% in comparison of the control, which exceeded the influence of zircon - artificially obtained growth stimulant. When these MPs were combined with a humic compound, their effect on plants increased. The output of standard seedlings exceeded the control seedlings by 60-90%. It is also shown that an increase in the content of nutrients in the 0-40 cm soil layer and an improvement in plant nutrition with nitrogen and potassium, and the humus content stabilized when using MP. However, plants lack phosphorus, and when using Azotobacterin in combination with component 2 also in nitrogen, which indicates the need for small starting doses of these elements when planting cuttings with applying this preparations.
Keywords: Decorative nursery, Сampsis radicans (L.) Seem. ex Bureau, lignified cuttings, microbial preparations, mineral nutrition
DOI: 10.21515/1999-1703-73-86-90

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Authors:

1. Klimenko Olga Evgenievna, DSc in Biology, Head of Laboratory of Agroecology, Federal State Institution of Science «Order of the Labour Red Banner Nikita Botanical Gardens - National Scientific Center Russian Academy of Science».
2. Klimenko Nikolai Ivanovich, Phd in Agriculture, Head of Laboratory of Steppe Gardening, Federal State Institution of Science «Order of the Labour Red Banner Nikita Botanical Gardens - National Scientific Center Russian Academy of Science».
3. Kameneva Irina Alekseevna, Phd in Agriculture, Head of Laboratory of physiology and ecology of microorganisms, Research Institute of Agriculture of the Crimea.