scholarly journals ADAPTATION OF ELEMENTS OF SUDAN GRASS CULTIVATION TECHNOLOGY TO THE CONDITIONS OF DRY-STEPPE ZONE

2020 ◽  
pp. 57-65
Author(s):  
Beybit NASIYEV ◽  
Nurbolat ZHANATALAPOV ◽  
Vladimir SHIBAIKIN ◽  
Hristina YANCHEVA
Keyword(s):  
Steppe Zone ◽  
Sudan Grass ◽  
Dry Steppe ◽  
Cultivation Technology

scholarly journals Assessment of ecological plasticity and stability of sunflower hybrids (Helianthus annuus L.) in Ukrainian Steppe

2018 ◽  
Vol 8 (1) ◽  
pp. 289-296
Author(s):  
O. A. Eremenko ◽  
V. V. Kalitka ◽  
S. M. Kalenska ◽  
V. M. Malkina
Keyword(s):  
Steppe Zone ◽  
Yield Potential ◽  
Ecological Stability ◽  
Ecological Plasticity ◽  
Average Group ◽  
Relative Air Humidity ◽  
Dry Steppe ◽  
Cultivation Technology ◽  
Varying Environments ◽  
Growing Conditions

Modern hybrids of sunflower show a pronounced response to changes in agrometeorological conditions of their growing. The<br />research was carried out during 2013-2015 under conditions of insufficient moisture in the Southern steppe of Ukraine. Field<br />and mathematical-statistical methods were used. A comparative assessment of levels of ecological stability was made for 7<br />sunflower hybrids (the company “Pioneer”). The application of plasticity and stability analysis by the Eberhard-Russell method<br />allows carrying out an integrated assessment of new hybrids in terms of their adaptability to growing conditions and a reaction<br />norm of genotypes to cultivation technology. In the dry steppe zone the sunflower realizes 45% of its genetic yield potential.<br />The highest yield of the studied hybrids was observed in 2013 when, despite the unfavourable hydrothermal index of the year,<br />the minimum relative air humidity during the flowering period was optimal (61.8%). A certain number of genotypes are<br />characterized by the average group value of the plasticity index of yield (i.e. close to 1), namely: PR64LE19, PR64LE71, PR64LE11, PR64A71. Stability ranges from 0.29 in the hybrid PR64LE11 to 32.51 in the hybrid PR64LE19. The hybrids PR64LE71 and PR64LE19 change their ecological plasticity under varying growing conditions. The hybrid PR64F66 is less responsive to varying environments than the whole set of hybrids on average but, compared to others, exhibits average stability. The best results were shown by the hybrids PR64F50 and PR64A89, since they are more sensitive to varying environments and more stable than other hybrids. Growing hybrids of different levels of intensity, genetically and biologically diverse, allows the effective exploitation of agroecological potential of different zones.

scholarly journals Influence of sowing time productivity of green mass of Sudan grass dry steppe zone in northern Kazakhstan

2014 ◽  
Vol 11 (2) ◽  
pp. 63-67
Author(s):  
N Serekpaev ◽  
S Seifullin ◽  
A Nogayev ◽  
S Bekbulatov ◽  
B Dorj ◽  
...  
Keyword(s):  
Steppe Zone ◽  
Sowing Date ◽  
Sowing Time ◽  
Sudan Grass ◽  
Green Mass ◽  
Northern Kazakhstan ◽  
Sowing Dates ◽  
Dry Steppe ◽  
Agricultural Sciences

In this article we analyze the effect of sowing date on yield of Sudan grass green mass. The study was conducted over 2 years on the basis of working farms in the dry steppe zone of Kazakhstan. The yield of Sudan grass green mass is depending on the most favorable sowing dates. DOI: http://dx.doi.org/10.5564/mjas.v11i2.219 Mongolian Journal of Agricultural Sciences Vol.11(2) 2013 pp.63-67

scholarly journals PROMISING MIXED CROPS OF SUDAN GRASS WITH FORAGE CROPS

REPORTS ◽  
2020 ◽  
Vol 6 (334) ◽  
pp. 73-80
Author(s):  
B.N. Nasiyev ◽  
◽  
◽  
◽  
Keyword(s):  
Maximum Yield ◽  
Weather Conditions ◽  
Steppe Zone ◽  
Crop Productivity ◽  
Forage Crops ◽  
Sudan Grass ◽  
Dry Steppe ◽  
Digestible Protein ◽  
West Kazakhstan ◽  
Mixed Crops

An important factor in increasing the efficiency of crop diversification in West Kazakhstan and reducing the dependence of crop productivity on weather conditions is the expansion of crops most adapted to unsustainable humidification of plants such as chickpeas, Sudan grass, sorghum, corn and sunflower. One of the ways to increase the productivity of Sudanese grass is to use its mixed crops with chickpeas, sunflower, corn and sorghum. Mixtures due to the best quality indicators of feed provide the maximum yield of feed units and digestible protein. The article presents research data on the study of mixed crops of Sudanese grass with annual crops in the conditions of the 1st dry-steppe zone of Western Kazakhstan. A comparative test of mixed crops by yield from digestible protein area units revealed the most nutritionally valuable mixtures. So, in the research of 2018-2020, the largest yield for digestible protein was obtained on the variant using sunflower for silage mixed with Sudan grass (1.65 c/ha), slightly lower on the versions of using a mixture of Sudan grass and corn for silage (1.58 c/ha) and a mixture of sorghum and Sudan grass for silage (1.55 c/ha).

INFLUENCE OF THE SEEDING RATE ON THE PRODUCTIVITY OF SUDAN GRASS IN THE CONDITIONS OF THE DRY-STEPPE ZONE OF THE LOWER VOLGA REGION

2021 ◽  
pp. 55-65
Author(s):  
V A.I. BELENKOV ◽  
◽  
YU.A. LAPTINA
Keyword(s):  
Steppe Zone ◽  
Seeding Rate ◽  
Sudan Grass ◽  
Feed Production ◽  
Volgograd Region ◽  
Dry Steppe ◽  
High Feed ◽  
Total Productivity ◽  
Livestock Productivity ◽  
Germinating Seeds

To increase the livestock productivity, it is important to increase feed production, while expanding the areas under drought-resistant multi-grained crops that have high feed values and productivity, as well as the ability to grow quickly after mowing. One crop oа this kind is Sudan grass. But, despite all its advantages, its yield in the conditions of the Volgograd region remains at a low level, so it is necessary to improve the technology of its cultivation. The paper reflects the results of the five-year research on the ways to increase the yield of green mass of Sudan grass by determining the optimal seeding rate. The experiments were carried out on chestnut soils in the conditions of JSC “Agrofirma “Vostok” of the Nikolaevsk district of the Volgograd region. Three seeding rates were studied: 1.0, 1.5, and 2.0 mln germinable seeds per hectare. The object of research was the Yulia variety. The highest percentage of field germination in all years of research was observed in the variant with a seeding rate of 1.0 million/ha – 85.3%. At the same time, the reverse dynamics was observed in the contamination of the Sudan grass crops, and when the crops were thickened, a decrease in the number and weight of weeds was observed. The largest part of the Sudan grass crop is formed in the first mowing and ranges from 60.3% at a seeding rate of 1.0 million tons of germinable seeds/ha to 63.3% at the 1.5 mln tons of germinable seeds/ha of total productivity. The study of the influence of different seeding rates on the productivity of Sudan grass showed the advantage of a seeding rate of 1.5 mln tons of germinable seeds/ha. This option ensured an increase compared to a seeding rate of 2.0 mln germinating seeds/ha in total for three mowing of 4.3 t/ha at a seeding rate of 1.0 million. An increase in the seeding rate to 2.0 million germinable seeds/ha reduced the yield by 2.2 t/ha as compared with a normative rate of 1.5 mln germinable seeds/ha.

scholarly journals Influence of crop care technology on sunflower yield and oil content

2021 ◽  
Vol 344 (1) ◽  
pp. 133-135
Author(s):  
B. N. Nasiyev
Keyword(s):  
Raw Materials ◽  
Soil Layer ◽  
Steppe Zone ◽  
Mineral Fertilizers ◽  
Seeding Rate ◽  
The West ◽  
Dry Steppe ◽  
Cultivation Technology ◽  
West Kazakhstan ◽  
Care Technology

Relevance. One of the important elements of adaptive sunflower cultivation technology is the system of pre-sowing tillage, which is aimed at the maximum destruction of seedlings and seedlings of weeds, preserving the accumulated reserve of soil moisture and creating optimal conditions for seed germination. The aim of the research is to study the elements of adaptive technologies of sunflower cultivation (methods of crop care) to increase its productivity and provide vegetable oil producers with high-quality raw materials.Methods. According to the morphological features of the genetic horizons of the profile and agrochemical indicators of the arable soil layer of the experimental plots, they are characteristic of the 1st dry-steppe zone of Western Kazakhstan. The area of plots for sunflower cultivation is 90m2, the repetition is three times, the location of plots is randomized. The experiments used a hybrid of sunflower Avangard. Seeding rate recommended for the dry-steppe zone of the West Kazakhstan region. During the research, nitrogen and phosphorous mineral fertilizers were used in the recommended doses for the region.Results. As a result of research on methods of crop care in the conditions of the 1st dry-steppe zone of the West Kazakhstan region, it was found that to control weeds on sunflower crops, it is advisable to harrow the soil with pre-sowing cultivation and use the herbicide roundup 5 days before sowing with a rate of 2 l/ha (option 2), where high structural indicators were noted and the highest seed yield was obtained

SOUTHERN CHERNOZEMS FERTILITY REPRODUCTION IN NORTHERN KAZAKHSTAN

2020 ◽  
Keyword(s):  
Crop Rotation ◽  
Humus Content ◽  
Steppe Zone ◽  
Perennial Grasses ◽  
Wheat Crop ◽  
Mineral Fertilizers ◽  
Northern Kazakhstan ◽  
Dry Steppe ◽  
Positive Balance ◽  
High Doses

Fertility reproduction features of southern carbonate chernozems in the conditions of the dry-steppe zone of Northern Kazakhstan (Shortandinsky district of Akmola region) are studied. We studied the changes of humus content in the model micro plot experience. Various variants of the experiment with non-fallow and dump steam without fertilizers, grain crops with different doses of mineral fertilizers, manure, as well as with straw and sideral crops (pea-oat mixture, Donnik) are laid down. The introduction of rotted manure in small doses of 20 t / ha did not provide an increase in humus during crop rotation. When adding 40 and 80 t / ha of manure to the fallow field, it allowed to increase the humus content by 0.24 and 0.18 % of the initial amount. The introduction of sideral steam and perennial grasses into crop rotation enhanced the processes of humification and provided a positive balance of humus. In this version of the experiment, the amount of humus increased by 0.10-0.13 %. The greatest accumulation of organic matter occurred when using melilot: the increase in humus was 0.39 %. Long-term cultivation of permanent wheat crop in one field, even with high doses of mineral fertilizers, does not provide significant reproduction of soil fertility. The application of mineral fertilizers does not contribute to the increase of humus in the soil. The greatest decrease in humus content in southern chernozems is observed in the permanent dump and waste-free pair-0.11 and 0.13% over a 6-year period of observations.

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