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

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.

Author(s):  
Vasyl Lopushniak ◽  
Maria Polukhovich ◽  
Natalia Lagush

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.


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.


2021 ◽  
pp. 115-125
Author(s):  
O. Grischenko ◽  
S. Romanova ◽  
V. Zapasnyi ◽  
I. Shabanova

The humus condition of soils of Chernihiv region has been studied. The dynamics of humus content in the soils of the region during six rounds (1986–2015) of agrochemical certification of agricultural lands is generalized and analyzed. In comparison with the 5th round (1986–1990), there was a discrepancy between the processes of stabilization and increase of humus content in most districts and in the region as a whole in the ninth round (2006–2010), and in some districts in the tenth round (2011–2015) against the background of a sharp decrease in the application of organic fertilizers. It was found that the stabilization of humus content in the soils of the region during the V–VIII rounds of agrochemical certification and a sharp increase in its content in the ninth round, against a significant reduction of organic matter, correlates with the withdrawal of eroded, low-yielding lands with low humus content (r=0.76). Analyzing the dynamics of humus content over thirty years of research,it was found that its content has increased in all climatic zones, as well as in nineteen of the twenty-two districts of the region. The increase of the indicator is in the range of 0.01–0.72%, while in all districts there is a significant reduction of the surveyed areas and only in three districts of the region there is a decrease in the humus content. According to the results of the 10th round of agrochemical certification, the soils of Chernihiv region are characterized by an average humus content of 2.41%. The highest humus content is characterized by the soils of Bakhmatsky (3.56%), Talalaivsky (3.33%) and Pryluky (3.32%) districts, and the lowest — NovgorodSiversky (1.57%). Increasing the sown area of green manure crops, plowing straw and the use of other elements of biologization of agriculture are important factors in increasing the weighted average humus content in the soils of Chernihiv region.


2021 ◽  
Vol 3 (45) ◽  
pp. 17-17
Author(s):  
Alexander Saakian ◽  
◽  

Data on the effect of long-term (18 years) use of crop sideration (white mustard), both separately and in combination with straw fertilizer, on the content of organic matter in sod-podzolic soil and crop productivity are presented. In the conditions of an acute shortage of organic fertilizers in agriculture in the central regions of the non-Chernozem zone, a promising and economically profitable form of organic fertilizer is crop crops of sideral crops from the cruciferous family (white mustard, etc.) Keywords: SOD-PODZOLIC SOIL, CROP ROTATION, WHITE MUSTARD, ORGANIC MATTER


2020 ◽  
Vol 03 (04) ◽  
pp. 36-39
Author(s):  
Elmira Mirza Aga Vekilova ◽  

In the Lankaran region of the Republic of Azerbaijan, the effect of manure, compost in two doses - 10 and 30 t/ha and green mass of green manure 30 t/ha were tested under tea culture. Studies have shown the beneficial effect of these fertilizers on the dynamics of phosphorus and potassium in yellow-podzolic soil. The best results were found when applying higher doses of these fertilizers. It should also be noted that the preparation from waste and the use of environmentally friendly organic fertilizers is of great importance, which plays an important role in protecting the environment from pollution. Key words: organic fertilizers, phosphorus, potassium, tea culture


2019 ◽  
Vol 20 (5) ◽  
pp. 467-477
Author(s):  
L. M. Kozlova ◽  
E. N. Noskova ◽  
F. A. Popov

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).


2021 ◽  
Vol 344 (1) ◽  
pp. 121-124
Author(s):  
E. V. Seminchenko

Among the methods of cultivation that increase the productivity of crops, a prominent role is assigned to crop rotation. In a properly constructed crop rotation, the efficiency of all agrotechnical methods aimed at improving the use of land increases, the biological needs of crops are satisfied, the rational use of technology is achieved, and the cost of production is reduced [1]. The soils are low in nitrogen, medium in phosphorus and high in potassium. The humus content is 1.2–2.0%, pH = 7–8. Studies have shown that green manure (sweet clover, oats, phacelia) have a positive effect on the balance of organic matter. The negative balance of organic matter is noted for pure steam. The stock of productive moisture in the 0–0.3 cm soil layer varied from 4.1 to 29.5 mm for winter wheat, 28.1–32.7 mm for chickpea and 28–35.3 mm for spring barley, depending on the weather conditions. conditions and methods of biologization. On average, over three years, the highest yield was in winter wheat for a busy fallow (phacelia) and amounted to 1.0 t/ha, which depended on weather conditions. A reliable correlation was revealed for the factors of yield-precipitation; temperature; batteries, etc.


2019 ◽  
pp. 38-44
Author(s):  
Tatyana Aleksandrovna Trofimova ◽  
Sergey Ivanovich Korzhov ◽  
Vladimir Petrovich Belogolovtsev ◽  
Sergey Anatolyevich Preymak

In experiments carried out on ordinary and leached chernozem, the effect of minimizing the methods of basic tillage and biologization on the fertility of these soils was analyzed. The studies were carried out in stationary and short-term experiments from 1984 to 2017. The effect of various methods and depths of the main tillage, autumn tillage systems, and fertilizers (mineral and organic) on the agrophysical, biological and agrochemical indicators of chernozem was studied. Refusal to carry out farewell processing in grain cultivating crop rotation leads to an increase in the differentiation of the arable layer, a decrease in the fertility of its lower part. The use of annual tillage in the crop rotation resulted in a decrease in the humus content in the soil layer of 0–40 cm by 0.17% (after fertilizers application) and by 0.22% (without fertilizers) compared to the dump processing by 20–22 cm. Organic fertilizers in a complex with minerals during farewell processing promotes an increase in the content of humus in comparison with the surface distribution during surface mulch tillage. A decrease in soil fertility and yield of cultivated crops without dump processing is proved.  


2020 ◽  
Vol 4 (2) ◽  
pp. 281-288
Author(s):  
O. O. Vinyukov ◽  
A. P. Dudkina ◽  
T. V. Shevchenko

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.


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