scholarly journals EFFECTS OF GREEN FERTILIZERS ON THE QUALITY STATUS AND PRODUCTION CAPACITY OF THE CAMBIC CHERNOZEM FROM MOLDOVA

AGROFOR ◽  
2020 ◽  
Vol 5 (3) ◽  
Author(s):  
Tamara LEAH ◽  
Valerian CERBARI
Keyword(s):  
Crop Rotation ◽  
Organic Fertilizer ◽  
Humus Content ◽  
Production Capacity ◽  
Organic Fertilizers ◽  
Arable Soils ◽  
Green Mass ◽  
Positive Balance ◽  
One Year ◽  
Quality Status

Chernozems Cambic from Central Moldova are subject to different forms of anthropogenic degradation. One of these is dehumification (loss of humus) and compaction of arable soil layers. In the recent situation regarding soil degradation of Moldova, the use of green fertilizers (leguminous) in crop rotation is the only possibility to remediate and maintain the quality status of the arable soils for the long term. Research was carried out over two farming years (2015-2016). In order to assess the quality status and production capacity of degraded cambic chernozems, two green mass harvest of vetch were incorporated into the soil as organic fertilizer on the field used for one year as an ”busy field” - sown with vetch two time (autumn 2014 and spring 2015), in the 5-field crop rotation (vetch-wheatrapeseed- barley-sunflower). The research results showed that the incorporation into the soil by disking two harvests of green mass and vegetal debris of vetch (about 12,4 t ha-1) as organic fertilizers led to the increase of humus content by 0.20%, compared to the control variant; to accumulation in the soil of 310 kg of nitrogen, of which 180 kg fixed from the atmosphere; synthesis of about 3 t ha-1 of humus or 1.7 t ha-1 of carbon; sequestration of about 6.3 t ha-1 of CO2; a weakly positive balance of organic matter and nitrogen in the soil over 3-4 years was insured. On the plot where one harvest of green mass of vetch was incorporated into the soil as green fertilizers, the increase in the wheat harvest increased up 2.4 t ha-1, and on the plot where two harvests of green mass of vetch were introduced into the soil, the harvest increase up 3.2 t ha-1, the total harvest was 7.0 t ha-1.

scholarly journals Influence of vermicompost aftereffect on the efficiency of spring barley cultivation in arid conditions of the Steppe of Ukraine

2020 ◽  
Vol 4 (2) ◽  
pp. 281-288
Author(s):  
O. O. Vinyukov ◽  
A. P. Dudkina ◽  
T. V. Shevchenko
Keyword(s):  
Crop Rotation ◽  
Spring Barley ◽  
Organic Fertilizer ◽  
Humus Content ◽  
Maximum Yield ◽  
Mineral Fertilizer ◽  
Production Costs ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Control Analysis

Barley is a crop, requires the availability of available nutrients in the soil, especially at the be-ginning of the growing season. The aim of the research was to determine the effectiveness of the aftereffect of using vermicompost when growing spring barley on different backgrounds in the Donetsk region. The studies were carried out according to the methodology of the field experiment of B. A. Dospehova. Research methods: field, supplemented by analytical studies, measurements, calculations and observations. The studies were conducted in 2017–2019 by laboratory-field method in field crop rotation in the experimental sections of the Donetsk SSES NAAS. The repetition in the experiments is 3-fold. The location of the plots is systematic. The soil is alkaline-chernozemic carbonate, having an average supply of mineral nitrogen and mobile phosphorus, low – potassium. The humus content of 4,2 % indicates a high potential soil fertility, but to realize the potential of the culture, additional application of phosphorus-potassium fertilizers is necessary. The technology for growing crops is generally accepted for the farms of the region, with the ex- ception of the factors studied. Variety of barley spring Avers. The experience scheme provides for: control (without fertilizers); background – saturation of crop rotation with vermicompost granular 2 t/ha; background + N30P30K30; background + N60P60K60; N30P30K30. The use of organic fertilizers under the predecessor in crop rotation provided improve nutriti-on conditions for plants, which positively affected the growth and development of spring barley plants. So, on the variants with the use of mineral fertilizers, the highest indices of the number of productive stems and the structure of the crop were noted in the background. The variant where N60P60K60 was added in the background produced the largest mass of 1000 grains – 49,8 g, which is 4,6 % higher than the control. Analysis of the study indicates the positive effect of the aftereffect of organic fertilizer (ver-micompost) on the yield of spring barley. The maximum yield of spring barley was obtained against the background of aftereffect of vermicompost 2 t/ha and the application of mineral fertilizers N60P60K60 – 5,05 t/ha, but due to high production costs, the profitability level is 114,9 %. The application of organic fertilizers under the background provides a yield of 3,67 t/ha and the highest level of profitability of 140,6 %. The optimal technological option provides for the introduction of mineral fertilizers in the norm N30P30K30 amid predecessor saturation with vermicompost. This allows increasing the yield up to 4,90 t/ha (by 1,46 t/ha or 42,4 % to the control) and obtaining a profitability level of 136,1 %. The use only of mineral fertilizer N30P30K30 in severely arid weather conditions of the steppe zone allows increasing the yield by 0,70 t/ha compared to the control but, due to the high cost of pro-duction, leads to a low production profitability of 99,6 %. Key words: spring barley, background, vermicompost, mineral fertilizers, yield, economic effici-ency.

scholarly journals Influence of extreme systems on the growth performance of dark-grey podzolic soil and productivity of the culture of the polish space of Western Forestry of Ukraine

2017 ◽  
pp. 214-223
Author(s):  
Vasyl Lopushniak ◽  
Maria Polukhovich ◽  
Natalia Lagush
Keyword(s):  
Crop Rotation ◽  
Podzolic Soil ◽  
Organic Fertilizer ◽  
Humus Content ◽  
Organic Fertilizers ◽  
Short Cycle ◽  
Organic Mineral ◽  
Fourth Cycle ◽  
Fertilization System ◽  
Mineral System

The article presents results of the research concerning impact of mineral, organic and organic-mineral system of fertilization with a different share of organic fertilizers on the fertility of dark-grey podzolic soil during the period of four cycles of a short cycle cereals-growing crop rotation. It is argued that application of organic-mineral fertilization with the share of 15.0 ton/ha of organic fertilizers secures increase of the content of total humus in the soil (+ 0.24% and + 6.24 ton/ha to the indicator of the first cycle) after the fourth cycle of a short cycle field crop rotation. Mineral system of fertilization does not supply an extended reproduction of humus share in the soil (-0.06% and -1.56 ton/ha, as compared to the similar variant of the first cycle of crop rotation). It is determined that the dynamics of the content of the main elements of mineral nutrition in the soil also depends on fertilization system. Under conditions of stationary field experiment the largest share of low-hydrolysed compounds of mineral nitrogen (139 mg/kg of soil), phosphorus (113 mg/kg of soil) and potassium (109 mg/kg of soil) in one layer (0–20 cm) was secured by organic-mineral system of fertilization with the share of organic fertilizer of 15 ton/ha at the end of the fourth cycle of crop rotation. Comparing to the first cycle, the share of the main nutrition elements in the variant increased by 27.1, 36.1 and 39.7% respectively. Such a system of fertilization supplied the highest level of the yield of agricultural crops during the four cycles of crop rotation. However, one should note that payback of yield was reduced from a cycle to cycle in case of fertilizers application. Key words: fertilization system, crop rotation, humus content, nutrition elements, yield.

scholarly journals Dynamics of Soil Humus Content with Different in Intensity of its Agricultural Use

2020 ◽  
pp. 5-11
Author(s):  
Т.И. Афанасьева ◽  
А.М. Труфанов ◽  
М.Ю. Иванова ◽  
Г.С. Цвик
Keyword(s):  
Crop Rotation ◽  
Humus Content ◽  
Perennial Grasses ◽  
Organic Fertilizers ◽  
Soil Humus ◽  
Fodder Crop ◽  
Positive Balance ◽  
Annual Grasses ◽  
Fertilizer System ◽  
Fodder Crop Rotation

Значение гумуса в почве сложно переоценить – он является одним из ведущих факторов плодородия. Данный показатель характеризуется динамичностью в зависимости от агротехнического воздействия, причём различная интенсивность и направленность этого воздействия может приводить как к потере почвенного гумуса, так и его накоплению. Биологизация севооборотов и земледелия в целом, а также переход к экологическим, в том числе к органическим технологиям возделывания сельскохозяйственных культур, вполне может способствовать сохранению и повышению плодородия почвы и гумуса. Оценка тенденций изменения почвенного гумуса в динамике позволит отслеживать эколого-биологическое состояние агроэкосистем. Таким образом, поставленные задачи исследования по определению изменения в динамике содержания гумуса под влиянием различных культур и технологий их возделывания являются весьма актуальными и значимыми. Исследования были проведены на кормовом севообороте на дерново-подзолистой среднесуглинистой почве в 2017 и 2020 годах с использованием общепринятых методик. За период исследований содержание гумуса в почве опытного участка возросло в среднем на 0,18%, несмотря на преобладание интенсивных технологий возделывания культур. Обоснованное чередование культур кормового севооборота и рациональная система удобрений способствовали поддержанию положительного баланса гумуса за счёт возделывания многолетних и однолетних трав, а также органической технологии, обеспечивающих замедление минерализации гумуса при умеренном его накоплении. Так, выращивание многолетних трав (в среднем по годам пользования) повышало показатель в сравнении с однолетними на 0,06%, ячменём – на 0,17%, кукурузой – на 0,23%. Выращивание интенсивных культур – ячменя и, особенно, кукурузы привело к наименьшему накоплению гумуса в почве. Использование минеральных и органических удобрений в интенсивных технологиях способствовало увеличению содержания гумуса, по сравнению с контролем, в среднем на 0,13%, а органических удобрений в органической технологии – на 0,10%. The importance of humus in the soil is difficult to overestimate – it is one of the leading factors in fertility. This indicator is characterized by dynamicity depending on the agrotechnical impact, and the different intensity and orientation of this impact can lead to both the loss of soil humus and its accumulation. The biologization of crop rotation and farming in general, as well as the transition to ecological, including organic technologies for cultivation of crops, may well contribute to the preservation and improvement of soil and humus fertility. Assessment of trends of soil humus change in dynamics will allow monitoring the ecological and biological state of agroecosystems. Thus, the set research tasks to determine changes in the dynamics of humus content under the influence of various crops and their cultivation technologies are very relevant and significant. Researches were carried out on fodder crop rotation on soddy podzolic middle loamy soil in 2017 and 2020 using generally accepted methods. During the period of researches the content of humus in the soil of the experimental field increased by an average of 0.18%, despite the predominance of intensive crop cultivation technologies. The reasonable rotation of crops in fodder crop rotation and a rational fertilizer system contributed to maintaining the positive balance of humus due to the cultivation of perennial and annual grasses, as well as organic technology that slows down the mineralization of humus with moderate accumulation. So, the cultivation of perennial grasses (on average by year of use) increased the indicator compared to annual ones by 0.06%, barley – by 0.17%, corn – by 0.23%. The cultivation of intensive crops – barley and, especially, corn – led to the smallest accumulation of humus in the soil. The use of mineral and organic fertilizers in intensive technologies contributed to an increase in humus content, compared with control one by an average of 0.13%, and organic fertilizers in organic technology – by 0.10%.

scholarly journals The Effect of Crop Rotation and Cultivation History on Predicted Carbon Sequestration in Soils of Two Experimental Fields in the Moscow Region, Russia

2020 ◽  
Author(s):  
Kristina Prokopyeva ◽  
Vladimir Romanenkov ◽  
Nadezhda Sidorenkova ◽  
Vera Pavlova ◽  
Stanislav Siptits ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Crop Rotation ◽  
Organic Fertilizer ◽  
Soil Management ◽  
Organic Fertilizers ◽  
Arable Soils ◽  
Row Crops ◽  
Fertilizer System ◽  
Soc Stocks ◽  
Cultivation History

Soil organic carbon (SOC) sequestration in arable soils is a challenging goal for soil management. Multiple factors should be considered for the prediction of the soil capacity to fix atmospheric carbon. In this study, we focused on the effect of crop rotation and previous land use for future carbon sequestration on two experimental fields with identical soils (Retisols) and input of organic fertilizers. We analyzed the SOC dynamics and used the Roth C model to forecast SOC changes under RCP4.5 and RCP8.5 scenarios. Our experimental and modelling results indicated a consistent increase in SOC stocks and the stable fractions of soil organic matter (SOM). The increase in SOC was higher in the experiment with the crop-grassland rotation that in the experiment with a rotation of row crops and barley. With similar total SOC stocks, the efficiency of soil management differed as reflected by the contrasting composition of SOM, as fields with a long cultivation history showed higher SOM stability. The goal of 4‰ annual increase of SOC stocks may be reached under crop- grassland rotation in 2020-40 and 2080-90 when applying mineral or organic fertilizer system for scenario RCP4.5, and mineral fertilizer system in 2080-2090 for scenario RCP8.5.

Fertilization System as a Factor of Transforming the Humus State of the Soil

2015 ◽  
Vol 2 (2) ◽  
pp. 39-44
Author(s):  
V. Lopushniak
Keyword(s):  
Crop Rotation ◽  
Podzolic Soil ◽  
Humus Content ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Content Increase ◽  
Energy Reserves ◽  
Gross Energy ◽  
Stable Forms

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.

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.

scholarly journals Improvement of crop rotations aimed at increasing their efficiency and conserving soil fertility in conditions of biological intensification

2019 ◽  
Vol 20 (5) ◽  
pp. 467-477
Author(s):  
L. M. Kozlova ◽  
E. N. Noskova ◽  
F. A. Popov
Keyword(s):  
Crop Rotation ◽  
Green Manure ◽  
Humus Content ◽  
Crop Rotations ◽  
Grain Legume ◽  
Field Crop ◽  
Grain Crops ◽  
Positive Balance ◽  
Perennial Legume ◽  
Bare Fallow

The long-term research conducted in 2002-2017 in a long stationary experiment on studying different types of field crop rotations under conditions of the Kirov region showed that on sod-podzolic soils the loss of humus could be lowered using agro technical methods. The most critical of them include the reduction of a portion of bare fallow, transition to sown and green-manure fallow, expanded use of perennial legume and grain-legume crops and intercrop sowings. In eight-field crop rotations when using such means of a biologization as plowing of the root-stubble residues, aboveground mass of green-manure crops in fallow fields and intercrop sowings, the supply of organic substance was within 17.24-83.03 t/ha. By mineral-ization of this substance 7.64-11.51 t of humus were produced. In a crop rotation with bare fallow there is a negative balance of humus of -0.06 t/ha. The positive balance is obtained when using sown, green-manure fallows, intercrop sowings (two-three fields), and introduction of up to 25% perennial legumes to the structure of crop rotations. The formation of 0.96-1.44 t/ha of humus in the arable layer provides positive balance of 0.20-0.72 t/ha. The increase of the part of grain crops up to 62.5-75.0% in the structure of crop rotations resulted in rise of their efficiency up to 4.74-4.79 thousand fodder units. It was 0.27-0.32 thousand fodder units higher than in the control crop rotation with bare fallow. Dependence of productivity of agricultural crops on humus content was insignificantly negative (r = -0.16). The efficiency of the studied crop rotations depended considerably on the amount of productive moisture in the soil in a phase of ear formation of grain crops (r = -0.78) and on biological activity of the soil (r = -0.80).

The Waste-Free Production Development for the Energy Autonomy Formation of Ukrainian Agricultural Enterprises

2020 ◽  
Vol 11 (3) ◽  
pp. 513
Author(s):  
Grygorii KALETNIK ◽  
Inna HONCHARUK ◽  
Yuliia OKHOTA
Keyword(s):  
Crop Residues ◽  
Crop Yields ◽  
Agricultural Waste ◽  
Organic Fertilizer ◽  
Humus Content ◽  
Research Problem ◽  
Organic Fertilizers ◽  
Agricultural Enterprises ◽  
Production Development ◽  
Energy Autonomy

Agriculture has been considered as one of the priority countries sectors in our research; the share of agriculture in the gross domestic product of the world leading countries was investigated. The theoretical and practical aspects of non-waste agricultural production development using animal waste and crop residues fermented in biogas plants are revealed. The authors substantiate the relevance and potential of the introduction of waste-free technology which has considerable advantages of energy autonomy both for the enterprise and the country. The state of humus content in soils of Ukraine is also considered. International experience has been evaluated, which consists in the ability of agricultural waste both to produce alternative sources of energy and to use the products of their processing as organic fertilizers that significantly increase crop yields. The first steps of the Ukrainian agricultural enterprises to introduction of non-waste production on the example of the company LLC Organic-D have been presented; it heats and electrifies the complex, dries crops, and also uses organic fertilizer (digestate) due to waste processing in the biogas station. As a result of the research, it was found that the application of organic fertilizer can have a positive effect on soil recovery, because the soil acidity has changed from a level of weak acid (5.4 pH) to a level close to neutral (6 pH) for one year of its application. To conclude, the obtained results prove the relevance of the research problem.

scholarly journals EFFECT OF MICROBIAL PREPARATIONS ON THE HUMUS BALANCE IN SOD-PODZOLIC SOIL

2019 ◽  
Vol 29 ◽  
pp. 56-61
Author(s):  
L. V. Potapenko ◽  
L. М. Skachok ◽  
N. I. Horbachenko
Keyword(s):  
Organic Matter ◽  
Crop Rotation ◽  
Green Manure ◽  
Podzolic Soil ◽  
Humus Content ◽  
Organic Fertilizers ◽  
Organic Mineral ◽  
Rotation Methods ◽  
Comparative Results ◽  
Positive Effect

Objective. To study the efficiency of inoculation of seeds by biological preparations under in-fluence on humus balance in growing crops in short crop rotation. Methods. Field, laboratory, cal-culation-comparative. Results. It was found that the highest entrance of organic matter in the soil was due to the use of organo-mineral fertilizing system NPK-manure-green manure, which contrib-utes to the increase of organic carbon reserves by 17.4 t/ha without the use of microbial prepara-tions and by 18.0 t/ha against the background of microbial preparations in comparison with the mineral fertilizing system. The use of microbial preparations under the fertilizing systems NP-manure-green manure allows to increase the amount of organic matter entering the soil by 1.2 and 1.6 t/ha during crop rotation. Under the use of organic fertilizers (manure, green manure) in com-bination with mineral ones and seed inoculation, not only the recovery of fertility of sod-podzolic soil, but also increase in the content of humus within the limits of 0.43–0.53 t/ha is reported. The use of manure on the background of the NPK makes it possible to increase the humus reserves in the soil by 0.11 and 0.15 t/ha per year. During crop rotation, the amount of newly formed humus in this variant exceeded its mineralization loss by 0.42 t/ha without microbial preparations and by 0.58 t/ha on the background of microbial preparations. Conclusion. The positive effect of the use of biological preparations under inoculation of seeds in combination with the organo-mineral fertiliz-ing system on the content of humus in sod-podzolic soil on average by crop rotation was estab-lished. Organic-mineral fertilizing system (NPK + manure + green manure) provides the highest growth of humus reserve in soil — 0.53 t/ha per year. The use of microbial preparations in the cul-tivation of crops under this fertilizing system contributes to the increase of humus content in the soil by 0.16 t/ha during crop rotation.

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