scholarly journals Grain productivity and quality of the facultative barley variety ‘Marusya’ when sowing in winter and spring

2021 ◽  
pp. 69-74
Author(s):  
А. S. Popov ◽  
G. V. Ovsyannikova ◽  
А. А. Sukharev ◽  
А. А. Dontsova ◽  
G. M. Zelenskaya ◽  
...  

The current study was carried out on ordinary blackearth (chernozem) in the southern part of the Rostov region in the FSBSI “ARC “Donskoy” (2017–2020 agricultural years). The purpose of the work was to identify the effect of autumn and spring sowing periods on grain productivity and quality of the facultative barley variety ‘Marusya’ according to various forecrops. There has been considered the dynamics of the productivity of the variety ‘Marusya’ depending on the sowing time when sown after maize for grain and sunflower. There has been established high adaptability of the variety ‘Marusya’ after nonfallow forecrops. It has formed a high productivity when sown in autumn at various times. There has been found out a positive reaction of the variety to sowing on September 10, 20 and 30, where the maximum productivity when sown after maize for grain was 6.76–6.91 t/ha. When sowing at later time, there was a slight decrease in productivity. When sown in spring, the highest protein percentage in grain was 11.0 and 11.6%. However, due to the highest productivity, the maximum protein yield was when sowing in autumn, up to 0.71 t/ha. The calculation of the economic efficiency of grain production showed that the highest profitability (214.1 and 214.4%) was obtained when the variety ‘Marusya’ was sown on September 10 and 20 after maize for grain. On average, over the years of study, the maximum conditional net income according to the forecrop, depending on the sowing time, was from 59658 to 84261 rubles/ha when sown in winter and from 48881 to 59170 rubles/ha in spring. The minimum profitability 62.1–75.2% was identified when sown in spring in 10 days after the soil was physically mature.

2021 ◽  
pp. 81-85
Author(s):  
S. A. Vasilchenko ◽  
G. V. Metlina ◽  
Yu. V. Laktionov

The current paper has presented the study results on the effect of biological products and microelement fertilizers ‘Organomix’ on productivity of the maize hybrid ‘Zernogradsky 354MV’ carried out in laboratory for cultivation technologies of row crops (FSBSI “ARC “Donskoy”) in 2019–2020. The soil in the experimental plot was favorable for the cultivation of corn, containing 3.36% of humus in the arable layer, 24.4 mg of mobile phosphorus, and 360 mg of exchangeable potassium per 1 kg of soil. The soil pH was 7.0. The study was carried out to estimate the effect of the use of biological products for seed treatment and microelement fertilizers ‘Organomix’ for plant treatment on productivity and economic efficiency of maize cultivation. There was low moisture content of sowings during the period of the trial. There was established an uneven distribution of precipitation, the value of the hydrothermal coefficient was less than 1 (0.64 in 2019 and 0.65 in 2020), which indicated the dryness of the vegetation period. The studied biological products and microelement fertilizers influenced the yield structure elements. The applied biological products and microelement fertilizers ‘Organomix’ improved survival rate of plants before harvesting (the plant density was 4.39–4.54 pcs/m2). There was increase of grain productivity indicators, namely cob weight ranged from 112.9 to 125.7 g, grain weight per ear varied from 94.4 to 104.8 g and 1000-grain weight was 221.2–231.4 g. The improvement of the yield structure elements increased grain productivity on 0.25–0.77 t/ha. Economic efficiency showed that the use of biological products and microelement fertilizers raised the conditional net income to the level of 28 061–34 821 rubles/ha, profitability up to 167.6–201.8% and reduced production costs to 4640–5231 rubles/t.


2021 ◽  
pp. 79-85
Author(s):  
А. S. Popov ◽  
G. V. Ovsyannikova ◽  
А. А. Sukharev ◽  
Е. G. Filippov ◽  
О. S. Lesnykh

The current study was carried out in the southern part of the Rostov region at the FSBSI “Agricultural Research Center “Donskoy” in 2018–2020. The purpose of the study was to investigate the combined effect of mineral fertilizers and treatments with the growth retardant ‘Moddus’ on productivity of the barley variety ‘Marusya’. In the course of the study, there was identified high responsiveness of the facultative barley variety ‘Marusya’ to the use of mineral fertilizers. Without fertilization, the productivity was 3.46–3.59 t/ha, and 0.87–1.57 t/ha when using the fertilizers. The maximum productivity and protein percentage were established in the variants with the introduction of N79P82K57 according to the active ingredient, with 5.81 t/ha and 0.55 t/ha, respectively. The treatment of plants with the growth retardant ‘Moddus’ contributed to productivity increase on 0.13–0.22 t/ha on average over the years of study. Under the effect of the growth retardant ‘Moddus’, the number of productive heads increased on 5–19 pieces/m2 , there was also a tendency to an increase in the number of grains per head and grain weight per head. The growth retardant ‘Moddus’ contributed to a decrease in plant height on 3.6–5.6 cm, at the same time there was a tendency to increase length of head on 0.2–0.5 cm in comparison with the control variant. Mineral fertilizers effectively increased nature weight of the facultative barley variety ‘Marusya’. Without fertilization, nature weight of grain was 579 g/l and 584 g/l, and when using fertilizers, it increased on 16–27 g/l or 2.7–4.6%. Productivity increase in the variant when treating with the growth retardant ‘Moddus’ resulted in an increase of the indicator of conditional net income over the control variant on 745–1884 rubles/ha.


2021 ◽  
pp. 33-38
Author(s):  
A. R. Ashiev ◽  
A. V. Chegunova ◽  
M. V. Skulova ◽  
K. N. Khabibullin ◽  
N. S. Kravchenko

The purpose of the current study was to identify the effect of the length of a vegetation period of the collection soybean samples on grain productivity and quality. The study was carried out in the southern part of the Rostov region in the fields of the FSBSI Agricultural Research Center “Donskoy” in 2018–2020. The climate is semi-arid with moderately hot summers. The soil is ordinary thick calcareous heavy loamy blackearth (chernozem). The forecrop was winter wheat. The objects of the study were collection soybean samples of the ARIGPR named after N.I. Vavilov. The study was carried out on 75 samples, including 52 middle early samples with 110-120 days of vegetation and 23 middle maturing samples (120-130 days of vegetation), differing in morphobiological and economically valuable traits. The analysis of a vegetation period, grain productivity and quality of the collection soybean samples has shown that in the southern part of the Rostov region the most variable trait was grain productivity (Cv = 22.5%). The less variable characteristics were protein percentage in grain (Cv = 3.8%), a vegetation period (Cv = 4.2%) and oil content in grain (Cv = 5.3%). There has been identified a positive effect of the length of a vegetation period of soybeans on grain productivity and oil content in grain for both groups of maturity, protein percentage in both groups of maturity having a negative dependence on a vegetation period. The study has shown that in the middle early group, the largest grain productivity was obtained with 117 and 118 days of vegetation, the highest protein percentage with 110 and 114 days of vegetation, and the largest oil content in grain with 118 and 120 days of vegetation. In the middle maturing group, the maximum productivity indicators were obtained for the samples with 126 and 130 days of vegetation, the maximum protein percentage with 122 days of vegetation and the maximum oil content in grain with 123 and 130 days of vegetation. The samples showing the maximum indicators will be included in further soybean breeding.


2020 ◽  
Vol 21 (6) ◽  
pp. 743-751
Author(s):  
А. A. Sukharev ◽  
G. V. Ovsyannikova

The studies were carried out in the southern part of the Rostov region in 2017-2019 on typical carbonate chernozem. Studied was the efficiency of periods of ammonium nitrate application (N30, N30+30 ) in autumn when the vegetation season is finished, in spring in the thawed soil, and during the tillering phaseon the yield and quality of winter wheat grain of Krasa Dona variety by different seed sowing rates (500, 600, 700 pcs/m2). Soft winter wheat variety Krasa Donacultivated after sunflower has shown a good reaction to double nitrogen top-dressing in autumn and in spring (N30 in autumn when the autumn growing season is finished + N30 in spring on thawed soil). In this variant there has been formed the largest yield of 6.09-6.18 t/ha. The productivity excess over the control variant (without nitrogen top-dressings) was 2.38-2.63 t/ha, depending on the seeding rate, which significantly exceeded the level of LSD05 in the experiment (LSD05 = 0.24 t/ha). In addition, in this variant with the seeding rate of 500 pcs/m2 the maximum economic efficiency was obtained. The profitability was 121.3 %, and the contingent net income was 34,268 rub/ha. The application of nitrogen fertilizing provided an increase in the mass of 1000 grains to 42.6-43.0 g (39.8-40.2 g in the control) and increased the gluten content in the grain to 20.5-21.8 % (18.6-18.8 % in the control).


2021 ◽  
pp. 63-68
Author(s):  
A. S. Popov ◽  
G. V. Ovsyannikova ◽  
A. A. Sukharev ◽  
A. A. Dontsova ◽  
D. P. Dontsov ◽  
...  

In the cultivation regions with unstable moisture there are fluctuations in grain crop productivity, which is mainly determined by the definite hydrothermal conditions. The purpose of the current study was to determine the effect of hydrothermal conditions on the formation of barley productivity during autumn and spring sowing periods in the southern part of the Rostov region. When conducting the trial, barley plants experienced a lack of air humidity and were insufficiently provided with precipitation, both in autumn and spring sowing periods, and the coefficient of moisture supply for barley crops was 0.53 and 0.45, respectively. There was found that the longest vegetation period of 235 days was observed during sowing on September 10, when the sum of positive temperatures was also the highest, 2010.4 °C. In the spring sowing periods, these indicators were the smallest: the vegetation period was 83 and 92 days, the sum of positive temperatures was 1555.2 and 1579.3 °C, respectively. There was established that for productivity formation (6.38 t/ha) in autumn sowing, the total moisture consumption of the facultative barley variety ‘Marusya’ was 308.5 mm per 1 ha, and the total moisture consumption per 1 ton of grain was 483.5 m3 on average for 2018-2020. In the total consumption of moisture, precipitation was 95%, and the share of soil moisture was 5%. When sowing in the spring, the variety ‘Marusya’ produced 4.26 t/ha and consumed 211.4 mm of moisture per hectare, and the total moisture consumption per 1 ton of grain was 496.2 m3. In the total consumption of moisture, precipitation was only 34%, and the share of soil moisture was 66%.


2019 ◽  
pp. 62-67
Author(s):  
V. Z. Venevtsev ◽  
M. N. Zakharova ◽  
L. V. Rozhkova

The current study gives the results of 2-year field trails which tested three protection systems for the spring barley variety “Yaromir” to improve the phytosanitary condition of sowings and to increase productivity. It has been established that the studied protection systems effectively protected spring barley from harmful organisms from sprouting to harvesting. With a total number of weeds of 80 pcs/m2 in 2017 the effectiveness of the herbicides was 91–94%; and with a total number of weeds of 72 pcs/m2 in 2018 the effectiveness of these preparations was 92–95%. There has been evaluated fungicides’ impact on the development of dark brown and net spots. The effectiveness of the preparations through study years ranged from 89 to 92% for dark brown spots and from 80 to 85% for net spots. As a result of the analysis of spring barley productivity, it has been revealed that under the effect of protection systems there has been obtained an additional grain yield of 1.42, 1.46, 1.44 t/ha in 2017 and 1.29, 1.33, 1.26 t/ha in 2018. The analysis of the economic efficiency of the studied protection systems has shown that in 2017 a conditionally net income ranged from 1,000 to 3,650 rubles/ha, in 2018 it ranged from 5,780 to 7,636 rubles/ha, when 1 ton of spring barley grain cost 5 thousand rubles in 2017, and 9 thousand rubles in 2018.


Author(s):  
H. A. Malkanduyev ◽  
A. H. Malkanduyeva ◽  
R. I. Shamurzayev ◽  
M. A. Bazgiyev

Results of researches on studying of influence of sowing time on productivity and quality of grain of grades of a winter wheat in the conditions of ecological zones of Kabardino-Balkar Republic are given in article. Researches were conducted in three various soil and climatic zones of Kabardino-Balkaria: steppe, foothill and mountain. Grades of winter soft wheat were objects of researches: Southerner, Tcheget, Winner. The purpose of researches - to study influence of sowing time on productivity and quality of grain. Results of researches have shown that grades differently reacted to sowing time, but the greatest productivity on them is received at crops in a steppe zone from September 25 to October 5 that makes 5,0-5,56 and 4,9-5,2Ô/hectare. At crops in later terms (on October 15 and 25) the productivity on grades decreases on 0,41-1,15Ô/hectare. The similar picture was observed also on other zones. As a result of the conducted researches optimum sowing time is established on zones of cultivation and grades, that is one of methods of formation of high productivity (5,0-5,5; 5,44-5,78 and 5,61-5,85Ô/hectare) and the best quality of grain. In the best options protein content in grades was 14,5 % and glutens of 30,4 %. Conditions of a steppe zone, warm and dry weather during the spring and summer period promoted receiving better grain.


2016 ◽  
Vol 3 (1) ◽  
pp. 55-60
Author(s):  
Yu. Lavrynenko ◽  
R. Vozhegova ◽  
O. Hozh

The purpose of the research is to identify effi cient microfertilizers and growth stimulants considering biologi- cal features of new corn hybrids of different FAO groups under irrigation conditions in the South of Ukraine and trace their impact on grain productivity of the plants. The methods of the research are the fi eld method – to study the interaction of the research object with experimental factors of the natural environment, to register the yield and evaluate the biometrical indices; the laboratory method – to measure soil moisture, grain moisture content and grain quality indices; the statistical method – to evaluate the reliability of the obtained results; the calculation methods – for economic and energetic assessment of the growing techniques used. The results of the research. The paper defi nes the impact of microfertilizers and growth stimulants on the yield and grain quality of the corn hybrids of different maturity groups and on the economic effi ciency of growing them. The conclusions of the research. Under irrigation conditions of the Southern Steppe of Ukraine it is recommended that the following hybrids should be grown in dark-chestnut soils: early maturity DN Pyvykha, medium-early Skadovskyi, medium maturity Kakhovskyi and medium-late Arabat, using the growth stimulants – treating the seeds with Sezam-Nano and fertilizing with Grainactive at the stage of 7–8 leaves.


Author(s):  
Margaret Jane Radin

Boilerplate—the fine-print terms and conditions that we become subject to when we click “I agree” online, rent an apartment, or enter an employment contract, for example—pervades all aspects of our modern lives. On a daily basis, most of us accept boilerplate provisions without realizing that should a dispute arise about a purchased good or service, the nonnegotiable boilerplate terms can deprive us of our right to jury trial and relieve providers of responsibility for harm. Boilerplate is the first comprehensive treatment of the problems posed by the increasing use of these terms, demonstrating how their use has degraded traditional notions of consent, agreement, and contract, and sacrificed core rights whose loss threatens the democratic order. This book examines attempts to justify the use of boilerplate provisions by claiming either that recipients freely consent to them or that economic efficiency demands them, and it finds these justifications wanting. It argues that our courts, legislatures, and regulatory agencies have fallen short in their evaluation and oversight of the use of boilerplate clauses. To improve legal evaluation of boilerplate, the book offers a new analytical framework, one that takes into account the nature of the rights affected, the quality of the recipient's consent, and the extent of the use of these terms. It goes on to offer possibilities for new methods of boilerplate evaluation and control, and concludes by discussing positive steps that NGOs, legislators, regulators, courts, and scholars could take to bring about better practices.


2013 ◽  
Vol 8 (2) ◽  
pp. 121-134
Author(s):  
Wioletta Wierzbicka

Evaluation of the correlation between the economic efficiency level of private companies in Poland and the quality of location in the regions was the aim of the study. Based on the conducted analyses it was established that the level of sales markets absorptiveness shows the strongest correlation with the level of economic efficiency of the companies surveyed. The majority of regions characterised by absorptive sales markets also recorded good results in economic efficiency of companies located there while voivodships with low internal demand were characterised by definitely lower efficiency. Increasingly strong correlation was also recorded between the economic efficiency level of the companies surveyed and the level of knowledge in the regions. This may be the signal that currently the location factors of "soft" nature present increasing influence on the efficiency of companies and it is not impossible that their importance will continue increasing. 


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