scholarly journals Productivity of natural phytocenoses of the Namsky agrolandscape in Yakutia under organic and mineral nutrition regimes

2022 ◽  
Vol 51 (6) ◽  
pp. 39-46
Author(s):  
V. V. Ustinova ◽  
N. V. Barashkova

The results of the study of the productivity potential of natural phytocenoses of different species composition in the Namsky agrolandscape of the middle taiga subzone of the Republic of Sakha (Yakutia) are presented. The research was conducted in 2009-2016. The soils of the experimental plot are permafrost soils with a thin humus layer. The effect of mineral and organic fertilizers on the productivity of steppe meadows was studied. On herb-grass, wheatgrass, steppificated phytocenoses the following practices of organo-mineral nutrition of plants were used: control (no fertilizer); humus 20 t/ha; humus 20 t/ha once every 4 years + N60P60K60 annually; N30P30K30 annually; humus 20 t/ha annually. The optimum rates of organic and mineral nutrients to improve the productivity potential of natural steppe meadows have been established. The highest productivity potential in the Namsky agrolandscape was obtained with the combined application of organic and mineral fertilizers (humus 20 t/ha once every 4 years + N60P60K60 annually). On herb-grass and wheatgrass phytocenoses hay yield reached 23.0-24.1 c/ha. Yield per 1 ha of metabolizable energy was 27.0-22.4 GJ, fodder units 1472-1663, crude protein 336-371 kg. The content of digestible protein in 1 fodder unit in herb-grass was 92 g, in wheatgrass - 102 g. The annual application of mineral fertilizers at a dose of 60 kg/ha of the active substance provided a 2-fold increase in the productivity of natural phytocenoses, depending on agroclimatic conditions of the growing season. The influence of mineral fertilizers and their joint application with organic fertilizers on the yield of natural phytocenoses is statistically reliable, which indicates the possibility of regulating the productivity of steppificated phytocenoses.

Author(s):  
В.А. Петрук ◽  
А.О. Вотяков

В статье представлены результаты изучения экономической и энергетической эффективности возделывания многолетних трав сенокосного и пастбищного использования. С 2007 по 2012 год проведено изучение продуктивности и экономической эффективности возделывания многолетних трав сенокосного использования в лесостепной зоне, коренное улучшение естественных кормовых угодий с 2011 по 2016 год — в южной лесостепи Западной Сибири. Продуктивность и рентабельность производства многолетних трав сенокосного использования с применением минеральных удобрений в лесостепной зоне наиболее высокими были у люцерны и составили 3,2 т/га корм. ед. и 190% соответственно при затратах 8,8 тыс. руб./га. Выход энергии — 43 ГДж/га, энергетический коэффициент (отношение величины выхода продукции к затраченной энергии) — 8,1. Коренное улучшение лугов с применением минеральных удобрений обеспечило получение 0,8 т/га корм. ед. при затратах 4,1 тыс. руб./га, рентабельность составила 56%. Продуктивность естественных угодий при коренном улучшении с использованием органических удобрений — 0,9 т/га корм. ед., рентабельность — 278% при затратах 1,9 тыс. руб./га. Выход энергии с использованием минеральных удобрений — 9,1 ГДж/га, энергетический коэффициент — 1,9, на фоне органических удобрений — соответственно 10,2 ГДж/га и 3,4. Внесение органических удобрений один раз в 5 лет способствовало существенному снижению затрат при коренном улучшении лугов и значительному повышению рентабельности производства. На основании полученных результатов можно заключить: рентабельность производства многолетних трав достаточно высокая, особенно при использовании органических удобрений. Поэтому в хозяйствах с экстенсивными технологиями многолетние травы должны составлять основу кормопроизводства. This article reports on economic and energy efficiencies of perennial grasses cultivated in pastures and haylands. Experiments on hay production took place in the forest-steppe in 2007–2012. Optimization of natural forage lands was conducted in 2011–2016. Alfalfa had the highest hay productivity and economic efficiency under mineral nutrition yielding 3.2 t ha-1 of feed units. Payback amounted to 190%, production costs — 8.8 thousand rubles ha-1. Energy yield reached 43 GJ ha-1, energy coefficient (yield-to-energy ratio) — 8.1. Mineral fertilizers led to the yield of feed units of 0.8 t ha-1, costs of 4.1 thousand rubles ha-1, and profitability of 56%. Under organic fertilization natural forage lands produced 0.9 t ha-1 of feed units, profitability reached 278% while costs — 1.9 thousand rubles ha-1. On the background of mineral nutrition energy yield amounted to 9.1 GJ ha-1, energy coefficient — 1.9, on the background of organic nutrition — 10.2 GJ ha-1 and 3.4, respectively. Organic fertilization once in 5 years significantly reduced costs and increased profitability. Production of perennial crops resulted in high payback, particularly under the application of organic fertilizers. Therefore, farms applying extensive cultivation practices should widely grow perennial grasses.


Author(s):  
Galina Yuryevna Rabinovich ◽  
Daria Vasilievna Tikhomirova

The results of a study of the effectiveness of the joint application of potato mineral and organic fertilizers are presented. The studies were carried out in 2017–2018. on the drained lands of the Tver region. Objects of research - potatoes of the Scarb variety, mineral and organic fertilizers in various doses. Organic fertilizers are products of the processing of organic raw materials based on fermentation processes - multipurpose compost (KMN) and BiGuEM. Mineral fertilizers - ammonium nitrate, double superphosphate and potassium chloride. In the work we used experimental methods - field experiments and theoretical research methods - mathematical statistics. Evaluation of the optimal fertilizer doses showed that BiHuEM organic fertilizer at a dose of 3 t / ha, when used together with mineral fertilizers at a dose equivalent to 3 t BiGuEM, provided potato resistance to late blight compared to the version where KMN was used - almost 8% in 2017 and 12% - in 2018, and compared with the option without the use of fertilizers (control) - by 61% and 23%, respectively. This combination of fertilizers provided the maximum yield (both general and marketable) in comparison with the control by 45% when calculating both types of yield in 2017, and in 2018 by 38% of the total and 53% of the commodity yield. A greater increase in potato yield was also revealed in the variant with BiGueM in comparison with the variant of using KMN - by 4.5% and 5.7% in 2017 and in 2018 by 6.1% and 10%, respectively. An increase in the quality of potatoes was noted, which is confirmed by the low content of nitrates in them, as well as by the increased content of starch, which was especially noted in 2017 - 34.3 g / kg and 15.99%, respectively.


2021 ◽  
Vol 36 ◽  
pp. 03010
Author(s):  
N.I. Kloster ◽  
V.B. Azarov

The article summarizes the results of field experiments to study the effectiveness of biologization elements in the cultivation of agricultural crops in the Central Black Earth zone of Russia. It has been proved that compost based on poultry manure and granular organic fertilizers with shallow introduction contribute to an increase in yield of up to 50 cwt/ha of grain while improving the fertility of typical chernozem. The coefficient of structure is growing, the bulk density of the soil, physical and chemical characteristics are stabilized. Liquid pig-breeding drainage shows an increase in grain yield but does not have a significant effect on the state of arable land. Similar characteristics apply to technologies for the grain crops cultivation with the use of mineral fertilizers. The greatest economic efficiency was obtained with the combined application of different types of organic fertilizers in moderate doses with the surface method of the main soil cultivation.


2021 ◽  
Author(s):  
D.V. Snegirev ◽  

To meet the nutritional needs of cabbage plants and ensure the maximum growth rate and high productivity, a special attention must be paid to the presence of a sufficient amount of readily available nutrients in the soil, primarily nitrogen. Cabbage grows faster against the background of mineral fertilizers, which is explained by the easy availability of the nutrients included in their composition, in comparison with organic fertilizers. At the same time, I.V. Gulyakin notes that the combined application of mineral and organic fertilizers is much more effective than using only mineral or only organic fertilizers. The analysis of the literature data on the effect of agrochemicals on the chemical composition of cabbage indicates that the ratio of individual components of the applied fertilizers, as well as the time of application, can significantly change its chemical composition both towards improving and deteriorating of the basic biochemical parameters.


2020 ◽  
Vol 5 (86) ◽  
pp. 66-72
Author(s):  
N.A. Shiryaeva ◽  
◽  
Yu.V. Beregovaya ◽  
S.N. Petrova ◽  
◽  
...  

Soybean is one of the most valuable protein crops on the modern market of agricultural producers and its production has been constantly growing in recent decades. The level of its productivity, as well as any other crop, depends on the biological productivity potential of the cultivated variety and the degree of implementation of its cultivation techniques. The aim of the research was to study the responses of soybean Glycine max (L.) Merr. Zusha varieties for various mineral nutrition in the conditions of agrocenosis. The research was conducted on the basis of the research and educational production center "Integration" of the Orel State Agrarian University named after N.V. Parakhin. We determined the biological efficiency of fertilizer systems, the productivity and quality of grain under different mineral nutrition conditions .Testing of liquid complex fertilizers on soy has shown high biological and economic efficiency of mineral fertilizers. In conditions of dark gray forest soils with average agrochemical indicators of the soil, as well as with spontaneous inoculation of soybean by native rhizobia strains, the maximum economic effect was demonstrated with the pre-sowing application of complex mineral fertilizer NPK (S)+Ca 5:15:30(5)+7 in a dose of 150 kg/ha and 20 kg/ha of urea, as well as diammofoski NPK(S) 10:26:26 (2) in conjunction with the ZhCU. The use of mineral fertilizers contributed to an increase in the growth of biomass by an average of 23%, and the area of leaves-by 8.5% compared to the control. Changes in mineral nutrition led to an increase in the content of raw protein in soy grains. Additionally, 4.4-4.6 C/ha of grain was obtained from 1 ha, respectively 4.7 and 5.4 thousand rubles of income due to an increase in soybean productivity by 22-23% compared to the control.


Author(s):  
S. D. Litsukov ◽  
A. F. Glukhovchenko

The development and implementation of the most optimal agricultural technologies for cultivating crops will allow you to maximize the potential of plants and get high productivity with good quality products. Among the variety of organic fertilizers currently used, a special place is occupied by poultry manure with a high content of nutrients found in the compounds assimilated by plants. In terms of the South-Western part of Central Black earth region, were studied combined effect of methods of primary tillage, doses of poultry manure and compost, combines them in making nitrogen fertilizers and mineral fertilizers on soil agrochemical parameters and grain productivity of corn. The productivity when plowing was 5,79 t/ha in the control variant, with beardless plowing – 4,91 t/ha and with no deep tillage – 4,8 t/ha. Poultry manure and compost (20 t/ha) in its pure form has increased the productivity by 1,02 and 0,87 t/ha when tilling, by 0,82 and 0,89 t/ha when beardless plowing by 0,78 and 0,83 t/ha when no deep tillage relative to control. Additional input in these variants of nitrogen fertilizer led to increase of productivity of corn to 6,99 and of 7,23 t/ha when tilling, which was higher than poultry manure (20 t/ha) and bird compost (20 t/ha) by 0,18 and 0,57 t/ha, when beardless plowing to 5,79 and of 6,37 t/ha. In order to cultivate corn for grain in the South-Western part of the Central Black earth region, it is necessary to plow to a depth of 22-25 cm as the main soil tillage. As the main fertilizer for obtaining stable productivity of corn for grain with the preservation of soil fertility at a high level of profitability, it is necessary to apply poultry manure at a dose of 20 t/ha. In order to achieve higher productivity of corn, we recommend the joint application of organic and mineral fertilizers in the dosage of poultry manure (20 t/ha + N 60) and poultry compost (20 t/ha + N 60).


2020 ◽  
Vol 6 (3) ◽  
pp. 236-240
Author(s):  
R. Haydarova

The role of macro– and micronutrients for corn plants is great. They increase the intensity of photosynthesis, participate in biological processes. The work is devoted to the development of science–based methods for increasing the yield and quality of corn. Field experiments were conducted in the northwestern zone of Azerbaijan. Test sites were laid in 4-fold repetition, in 6 versions. Used: ammonium nitrate, simple superphosphate, potassium sulfate, manure, compost of various waste products. All agricultural activities were carried out according to the developed technology. Before ploughing, the entire rate of manure, phosphorus and potassium was introduced, in early spring before tillage. As a result, it was revealed that with the introduction of 20 t/ha of compost — the yield of corn was 85.1 c/ha, i.e. an increase of 15.9 c/ha. It can be concluded that mineral fertilizers in combination with manure in the proportions chosen by the authors effectively affect not only the growth and development of plants, corn productivity also increases.


Author(s):  
A. N. Babichev ◽  
◽  
A. A. Babenko ◽  

Purpose: to analyze the experience of applying mineral and organic fertilizers on dry and irrigated lands for the main agricultural crops. The overview of scientific research results, literature sources on applying a fertilizer system in agriculture, in which nutrients necessary for agricultural crops are introduced into the soil during the most critical periods of growth and development are presented. This paper considers the use of fertilizers, taking into account the utilization rates of available forms of nitrogen, phosphorus, potassium and other elements necessary for plants from fertilizers and the root layer of the soil, clarifies the need to compensate for the removal of nutrients by the vegetative and generative parts of the crop, the rate of consumption of mineral nutrition elements by agrocenoses. The timing and methods of using organic and mineral fertilizers depend on the granulometric composition of the soil, the predecessor, the level of groundwater occurrence, the agrochemical properties of soils, the efficiency of the drainage network, weather and climatic conditions, the growth and development phase of the cultivated crop. Conclusion. The study of the works of domestic and foreign scientists on the timing, norms, types and methods of applying mineral and organic fertilizers for various agricultural crops cultivated on dry and irrigated lands, and the analysis of the studies allow us to conclude that in the conditions of digitalization of agricultural production, there is no consensus about the systems the use of mineral and organic fertilizers in the conditions of precision (precision) farming. Research in this area is promising at the present time and in the near future, especially when using modern means of diagnosing deficiencies in plant nutrients.


2015 ◽  
Vol 2 (2) ◽  
pp. 39-44
Author(s):  
V. Lopushniak

Aim. To establish the effect of different fertilization systems in short fi eld crop rotation on the change in the state of humus in the dark gray podzolic soils in Western Forest-Steppe of Ukraine. Methods. Field studies were carried out in a stationary experiment of the Department of Soil Science and Agricultural Chemistry of the L’viv National Agrarian University; determination of humus content – according to DSTU 4289:2004, and that of its labile forms – in accordance with DSTU 4732:2007, fraction-group composition – by Ponomare- va-Plotnikova’s method, according to the measurement procedure 31-497058-008-2002. Results. The use of organo-mineral fertilizer system in short fi eld crop rotation with the saturation of organic fertilizers of 15 t/ha of crop rotation contributes to the humus content increase by 0.7 % after the third rotation in 0–40 cm layer of dark gray podzolic soil, the increase in the share of stable forms of humic compounds up to 57–59 % and the increase in the ratio of R HA :R FA to 1.3–1.4. The study demonstrated very high dependence of amount of gross energy reserves in the humus on the R HA :R FA ratio. Conclusions. The combined application of organic fertili- zers in the form of manure, non-market of the crop (straw) and siderate, along with mineral fertilizers is re- commended in short fi eld crop rotations of Western Forest-Steppe of Ukraine toensure expanded reproduction of fertility of dark gray podzolic soil, improvement of its humus status, increase in gross energy reserves and the share of the stable forms and humic acids in the humus.


2018 ◽  
Author(s):  
V.A. Borisov ◽  
I.Yu. Vasjuchkov ◽  
A.A. Kolomiets ◽  
O.N. Uspenskaya ◽  
A.V. Kornev

Установлено, что на пойменных почвах использование методов диагностики минерального питания растений моркови «по почве» и «по черешку» в фазу начала образования корнеплодов позволяет значительно (на 36–42%) снизить расход минеральных удобрений, обеспечивая урожайность моркови на уровне 70 т/га с долей стандартной продукции 78–81% без существенного изменения качества корнеплодов.It was found that in floodplain soils, the use of methods of diagnosis of mineral nutrition of carrot plants «on the soil» and «on the petiole» in the phase of the beginning of the formation of root crops can significantly (by 36–42%) reduce the consumption of mineral fertilizers, ensuring the yield of carrots at the level of 70 t/ha with a share of standard production of 78–81% without significantly changing the quality of root crops.


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