Ecological and Geographical Analysis of Ornithocomplexes of the Tobol–Irtysh Forest Steppe and Steppe of Western Siberia and North Kazakhstan in the First Half of Summer

2021 ◽  
Vol 14 (5) ◽  
pp. 492-499
Author(s):  
S. A. Soloviev ◽  
L. G. Vartapetov
Author(s):  
N. I. Kashevarov ◽  
R. I. Polyudina ◽  
I. N. Kazarinova ◽  
D. А. Potapov

A new cultivar of smooth bromegrass (Bromopsis inermis Leyss) Flagman was developed by methods of mass selection and polycross. Breeding and wild forms of various ecological and geographical origins are used as an initial material. The authors of the cultivar: Kazarinova I.N., Polyudina R.I., Straub A.A., Gomasco S.K. Studies were conducted on the Central experimental base of the Siberian research Institute of fodder crops of the Siberian Federal Scientific Centre of Agro-BioTechnologies of the Russian Academy of Sciences, located in the forest-steppe zone of Western Siberia (Novosibirsk region, Novosibirsk district, Krasnoobsk). The cultivar is mid-ripening: the period from the beginning of spring aftergrowing to mowing ripeness is 63-75 days and to full maturing of seeds is 95-111 days. The yield of dry matter is 8.3 t/ha, which exceeds the standard by 8%, seed yield - 0.62 t/ha, higher than the standard by 28%. The dry matter yield of the cultivar Flagman for the fourth year of use exceeded the standard by 23% and reached to 11.4 t/ha. The 1000 seeds weight is 3.0-3.4 g. The plant height is 90-140 cm. Tilling capacity is up to 40 stems per tuft. Foliage varies from 32 to 50% depending on the age of the grass and environment conditions. The resistance of the cultivar to brown rust and helminthosporiosis is higher than of the standard. The copyright certificate No. 71916 and patent No. 9653 were received.


2018 ◽  
Vol 1 (72) ◽  
pp. 161-165
Author(s):  
Nina Kazydub ◽  
◽  
Svetlana Kuzmina ◽  
Evgeniy Freilikh ◽  
◽  
...  

Radiocarbon ◽  
2012 ◽  
Vol 54 (3-4) ◽  
pp. 737-747 ◽  
Author(s):  
V I Molodin ◽  
Z V Marchenko ◽  
Y V Kuzmin ◽  
A E Grishin ◽  
M van Strydonck ◽  
...  

This paper focuses on the chronology of Middle Bronze Age complexes in the Baraba forest steppe (western Siberia). Three sites were radiocarbon dated, Stary Tartas 4, Sopka 2, and Tartas 1. The Late Krotovo culture was dated to the 18–19th centuries BC, the Andronovo complex (Fedorovo stage) to the 15–18th centuries BC, and the Mixed Andronovo complex dated to the 15–17th centuries BC. These values are some 300–500 yr older than previously thought, and the new results are consistent with14C dates of the Andronovo cultural complex in northern Eurasia. Based on these data, the 15th century BC is the upper chronological limit of the Andronovo period.


2018 ◽  
Vol 44 (3) ◽  
pp. 241-244 ◽  
Author(s):  
E. Yu. Toropova ◽  
A. P. Glinushkin ◽  
M. P. Selyuk ◽  
O. A. Kazakova ◽  
A. V. Ovsyankina

2021 ◽  
Vol 10 (3) ◽  
pp. 34-40
Author(s):  
Olga Yurievna Vasilyeva

The paper analyzes the dynamics of formation of a collection of Astilbe varieties and species included in the bioresource collection USU 44053 in the conditions of Western Siberia forest-steppe. The ways of further expansion of Astilbe collection fund are substantiated by attracting representatives of the Astilbe chinensis , A. crispa groups; varieties with rhombic, narrow-lobed and pyramidal inflorescences, primarily belonging to the group of colors: red, dark red, purple and dark purple. In contrast to the conditions of the middle zone of Russia in which Astilbe are divided into four groups according to the period of flowering: 1) very early (end of June - July), 2) early (July), 3) medium (mid-July - mid-August) and 4) late (end of August - mid-September), for the conditions of Western Siberia forest-steppe, with intense heat gain in mid-May-early June, the flowering dates of very early and early varieties converge. Accordingly, there are three groups: early-flowering (bloom July 8-10), medium-flowering (bloom from July 15-18), late-flowering (bloom from late July-early August). It is proposed to add a narrow-lobed and pyramidal-drooping inflorescence to the traditionally described forms of Astilbe varieties. The expansion of the set of dwarf varieties from the A. crispa group with strongly dissected fringed leaves gives additional opportunities for a landscape design.


2018 ◽  
Vol 12 (4) ◽  
pp. 45-49
Author(s):  
Валерий Чибис ◽  
Valeriy Chibis ◽  
Светлана Чибис ◽  
Svetlana Chibis ◽  
Илья Кутышев ◽  
...  

In a long-term places, located on the experimental fields of Siberian Research Institute of Agriculture (Omsk), the schemes of field crop rotations were modernized by introducing oil crops (rapeseed, soybean) into rotation and replacing the repeated wheat crops with barley and oats. Accounting of grain crops productivity and accompanying observations were carried out in three field rotations of different lengths of rotation (four- and five-field) and on permanent sowing. The repetition of the experiments is fourfold. The system of agrotechnical measures recommended for the zone of the forest-steppe of Western Siberia was applied. The study of predecessors in the cultivation of crops for various purposes was carried out in field experiments using conventional methods. The humus content for rotation in the soil layer of 0-40 cm increased by 0.19% in the crop rotation “rapeseed - wheat spring wheat - barley - soybean - spring wheat”. The largest accumulation of humus (0.83%) was in the rotation “soybean - spring wheat - barley – oats”. During the years of research wheat productivity varied from 0.82 to 2.22 tons per hectare. Wheat was the first crop in all its predecessors to form grains, on average, by 0.3-0.5 tons per hectare, than the second crop. The yield of soybeans in the crop rotation was 1.23-1.78 tons per hectare. The productivity of rapeseed was low, its productivity over the years was 1.31 tons per hectare. Grain-fodder crops (barley, oats) averaged 0.4-0.6 tons per hectare, higher than the spring wheat productivity in the alternating rotation. The maximum yield of grain from a hectare of arable land was noted in the crop-steam rotation and amounted to 1.7 tons. An increase in the yield of feed-protein units was observed in crop rotations saturated with oil crops (rapeseed and soybean) and amounted to 3.4-4.0 tons per hectare. The economic calculation showed that the cultivation of field crops in the rotational crop rotation of “soybean - wheat - barley – oats” increased profitability by 44%, net income - by half, in comparison with the control variant. The obtained materials can be used to develop schemes of field crop rotations for the zone of the forest-steppe of Western Siberia.


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