scholarly journals Effect of Azotobacter chroococcum on sugar beet and microbial activity of rhizosphere

2010 ◽  
pp. 37-46
Author(s):  
Janja Kuzevski ◽  
Nada Milosevic ◽  
Sasa Krstanovic ◽  
Zora Jelicic
Keyword(s):  
Sugar Beet ◽  
Soil Microorganisms ◽  
Vegetation Period ◽  
Mineral Fertilizers ◽  
Atmospheric Nitrogen ◽  
Root Yield ◽  
Almost All ◽  
Biological Nitrogen ◽  
Number Of Bacteria ◽  
Soil Dehydrogenase Activity

In sugar beet production, one of the most important factors that affect the yield, apart from genetic properties, is the use of mineral fertilizers. Considerate amounts of mineral fertilizers are used in sugar beet production. However, if agroecological conditions are not optimum, mineral fertilizers cannot be completely absorbed, which may lead to soil contamination. Therefore, research has been focusing on ways of using atmospheric nitrogen by means of nitrogen-fixing bacteria. Numerous researches have proved that one part of mineral fertilizers can be replaced by biological nitrogen. The aim of this research was to determine the effect of genotype, azotobacter and the amount of mineral fertilizers on the root yield of sugar beet and on the microbiological activity of the sugar beet rhizospheric soil. Three hybrids of sugar beet were used during the two years of the research. The seed of the hybrids was inoculated with three strains of azotobacter. Various amounts of NPK were used (0;30;60;90 kg/ha). At the end of the vegetation period, the following were determined: root yield, total number of bacteria, number of azotobacter, oligotrophic bacteria, ammonifiers, fungi, and actinomycetes in soil. Dehydrogenase activity was measured. The results were processed statistically (analysis of variance for factorial trials) and the effect of the factors was determined upon the expected mean square values. The yield was mainly affected by the amount of mineral fertilizers. However, the effect of mineral fertilizers was different with different inoculation treatments. The effect of the examined factors was dependant upon genotype, amount of mineral fertilizers, inoculation and the year of trials. The interaction between genotype, mineral fertilizers, inoculation and the year of trials was the factor that had the greatest effect on the number of almost all the examined soil microorganisms.

scholarly journals Influence of sowing and harvest dates on production of two different cultivars of sugar beet  

2017 ◽  
Vol 63 (No. 2) ◽  
pp. 76-81 ◽  
Author(s):  
Pavlů Klára ◽  
Chochola Jaromír ◽  
Pulkrábek Josef ◽  
Urban Jaroslav
Keyword(s):  
Sugar Beet ◽  
Sugar Content ◽  
Vegetation Period ◽  
Heterodera Schachtii ◽  
Root Yield ◽  
Harvest Dates ◽  
Small Plot ◽  
The Impact ◽  
Daily Gain ◽  
Infested Site

Small-plot trials conducted in 2013–2015 studied the impact of longer vegetation periods (by means of earlier drilling and/or later harvest) on production results of two sugar beet cultivars – one nematode-tolerant cultivar and one cultivar without such tolerance. The trials took place at two sites with different Heterodera schachtii infestation levels. In all trial seasons, root yield was significantly higher in the earlier drilled plots. On average, prolongation of the vegetation period in spring by 13 days increased root yield by 10.9%. Therefore, each day by which drilling is postponed represents a 0.7–0.8% loss of yield. As to sugar content, no statistically significant benefit of vegetation period prolongation by early drilling was found. The spring gain was slightly higher for the non-tolerant cultivar than for the tolerant one on average over all trial seasons. This result confirms the theory that nematodes impact the crop mainly in later stages of vegetation, and early drilling can thus help eliminating, to a certain degree, the risk of nematode damage. In the autumn, root yield increased by 14.3% on average over 39 days. The autumn daily gain was about half of the rate found in the spring. The increase in sugar content was between 0.6% and 1% (abs.) on average. Autumn growth achieved at the non-infested site was much higher than at the infested site.  

scholarly journals Effect of Bean Cultivars on Soil Microorganisms

2018 ◽  
Vol 66 (1) ◽  
pp. 155-160 ◽  
Author(s):  
Bojana Petrović ◽  
Simonida Đurić ◽  
Mirjana Vasić ◽  
Vesna Tunguz ◽  
Robert Pokluda
Keyword(s):  
Soil Microorganisms ◽  
Rhizobium Leguminosarum ◽  
Vegetation Period ◽  
Organic Production ◽  
Microbiological Activity ◽  
Conventional Production ◽  
Number Of Microorganisms ◽  
Bacteria And Fungi ◽  
The Village ◽  
Number Of Bacteria

The aim of this study was to determine the microbiological activity in soil under beans in organic and conventional production. Organic production was conducted on the field in the village Pivnice (Serbia), while conventional production was conducted in the village Curug (Serbia) during 2014 on the chernosem type soil. Cultivars of beans Belko, Dvadesetica, Maksa, Slavonac, Sremac, Zlatko were used. Before sowing, the bean seeds were inoculated by biofertilizers NS-Nitragin. NS-Nitragin contains a mixture of selected strains of symbiotic bacteria Rhizobium leguminosarum bv. phaseoli. The total number of actinomycetes, ammonifiers, Azotobacter, bacteria and fungi were determined. At the end of vegetation period in conventional production the highest number of actinomycetes (5.83) and fungi (4.87) was recorded in cultivar Dvadesetica. In organic production the highest number of ammonifires was in cultivar Sremac (9.91). The highest number of bacteria was in cultivar Dvadesetica (9.08) and the highest number of fungi was in cultivar Zlatko (5.14). The results have shown that number of microorganisms was higher in organic production.

scholarly journals The effect of nitrogen fertilization and anti-fungal plant protection on sugar beet yielding

2011 ◽  
Vol 51 (No. 5) ◽  
pp. 232-236
Author(s):  
M. Pytlarz-Kozicka
Keyword(s):  
Sugar Beet ◽  
Dry Matter ◽  
Plant Protection ◽  
Sugar Content ◽  
Weather Conditions ◽  
Vegetation Period ◽  
Root Mass ◽  
Root Yield ◽  
Yield Increase ◽  
Anti Fungal

Sugar beet yielding and, thus, the profitability of its cultivation depends on various conditions. These are mainly a&nbsp;dose of nitrogen fertilizing and anti-fungal plant protection. Based on the research carried out in a private-owned farm in Biała commune, Opole province, Poland, it was observed that the most important factors influencing plant development and root yield of sugar beets (var. Kassandra and Cortina) were genetic features of the investigated varieties and fungal control. They increased considerably root yield and sugar content. The doubled nitrogen dose from 90 to 180 kg N/ha enhanced a slight, statistically insignificant, root yield increase and a lower sugar content in beet roots. The three-year research showed that weather conditions during the vegetation period had a decisive effect on sugar beet plants development and fungal infestation. The variety Cortina was characterized with a significantly higher yield and a higher content of treacle forming compounds in the roots. The increase of N rate from 90 to 180 kg N/ha caused a significant increase of average root mass, leaves and dry matter yield and potassium and N-NH<sub>2</sub> in roots, but it also lowered sugar content. In the years with favorable conditions for fungal infestation, the use of fungicides helped to obtain a higher leaf/root ratio, higher root mass, higher root and leaf yield and higher dry matter and sugar yields. However, it did not have an effect on the content of chemical compounds producing treacle in sugar beet roots.

scholarly journals Basic Fertilization with Mineral Fertilizers in Soybean Crop

2013 ◽  
Vol 70 (1) ◽  
pp. 218-222
Author(s):  
Valeria DEAC ◽  
Ioan ROTAR ◽  
Anamaria MÄ‚LINAȘ
Keyword(s):  
Nutritional Value ◽  
Central Area ◽  
Vegetation Period ◽  
Animal Origin ◽  
Mineral Fertilizers ◽  
Atmospheric Nitrogen ◽  
Early Variety ◽  
Protein Requirements ◽  
Mature Seeds ◽  
Favorable Area

Rich in high nutritional value protein, likely to the protein of animal origin, soybean is considered to be “a golden plant” or “wonder plant”, aimed to resolve global protein deficiency (insuring in present 60% of humanity’s protein requirements). The mature seeds are used in human nutrition. The most important role which soybean has is related to its capacity to fix atmospheric nitrogen without any efforts from farmers. The symbiosis which results from the relation between plant and Bradyrhizobium japonicum ensures 50% of the nitrogen needed for plants growth and development and after harvest remain in soil between 80 and 120 kg N. ONIX variety is made on S.C.D.A. Turda and registered in the year 2002. This variety is highly resistant to falling, shaking and specific diseases. It’s an early variety which is included in maturity group 00, with a vegetation period of 123 days. Having a high protein content of 40,1%, and 21% fats this variety is superior under this aspect to the others varieties created on S.C.D.A. Turda. The research were undertaken on S.C.D.A. Turda on the period 2009 - 2011, on a polifactorial experience of 3x5x5 type, installed after the subdivided parcels method. The experience has as factors: the year (2009-2011), the fertilization with phosphorus (P0, P40, P80, P120, P160) and the fertilization with nitrogen (N0, N25, N50, N75, N100). The highest soybean yields were registered taking into account the specific of this crop related to the presence of nitrogen fixation bacteria. Soybean production levels confirm the framing of central area of Romania as a very favorable area for this crop and in conclusion it is recommended to expand the cultivated areas.

scholarly journals Effects of meat bone meal as fertilizer on yield and quality of sugar beet and carrot

2015 ◽  
Vol 24 (2) ◽  
pp. 68-83 ◽  
Author(s):  
Jukka Kivelä ◽  
Lin Chen ◽  
Susanna Muurinen ◽  
Pirjo Kivijärvi ◽  
Veikko Hintikainen ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Sugar Content ◽  
Organic Production ◽  
Organic N ◽  
Mineral Fertilizers ◽  
Root Yield ◽  
Bone Meal ◽  
Total N ◽  
Yield And Quality

Meat and bone meal (MBM) is a by-product of the meat industry and is an important pathway for recycling of N and P. MBM contains about 8% N, 5% P, 1% K and 10% Ca. Field trials compared the effects of MBM and mineral  fertilizer on yield and quality of sugar beet (2008-2009) and carrot (2010-2011) in Finland. MBM fertilisation of sugar beet grown on clay loam and sandy clay soil gave 11.4% (2008) and 19.6% (2009) lower yields than mineral fertilizers. The lower root yield in 2008 was compensated by higher extractable sugar content and lower amino-N, K and Na in root but no such compensation in root quality was detected for 2009. Mixing MBM with mineral NPK fertilizers had similar effects as MBM-alone. MBM (80 kg N ha-1 2010 and 60 kg N ha-1 2011) together with K fertilizer (Patentkali®, 180 kg K ha-1) were applied for carrot to a fine sandy till soil in 2010 and sandy loam in 2011. MBM alone gave 14% lower total and marketable root yield than mineral fertilization. The lower yield was compensated by improved quality, lower NO3- content in the carrot and good storability. Adding extra fertilizer during growth or separating fertilization applications had no effect on root yield or quality. MBM performed in these cases mainly as an organic N fertilizer. The N supply from MBM is not sufficient for achieving same yields as with mineral fertilizers. The relative N efficiency of total N of MBM was 83% that of mineral fertilizers. MBM should be targeted on soils with low P status.We conclude that MBM is a reasonably competitive alternative to mineral fertilizers, and as a recycled fertilizer it is a good option for organic production.

scholarly journals Bioenergy efficiency of some elements of sugar beets growing technology

2019 ◽  
pp. 13-19
Author(s):  
L. Karpuk ◽  
A. Pavlichenko ◽  
V. Karaulna ◽  
L. Bogatyr ◽  
V. Polyakov ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Sugar Beet ◽  
Plant Density ◽  
Vegetation Period ◽  
Energy Output ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Efficiency Coefficient ◽  
Efficiency Ratio ◽  
Sugar Beets

The goal of the research is to assess the bioenergy efficiency of individual elements of sugar beet growing technology. Materials and methods. The experiment was conducted at the Training and Production Center (BCC) of Bila Tserkva National Agrarian University in 2015-2017. All field experiments were conduct on the background of the main fertilizer. Under the basic cultivation of the soil 40 t/h of manure and N120P100K140 mineral fertilizers (a.s.) were introduced, on the basis of the planned yield of 70 t/ha. Norms of organic and mineral fertilizers were calculated taking into account the presence of nutrients in the soil and the coefficient of their removal by sugar beet. The results of research. For the energy assessment of the elements of sugar beet cultivation technology in the central part of the Right-bank Forest-steppe zone of Ukraine, the cost of the total energy per unit area was determined by the technological maps, which were grouped and analyzed according to the following articles: seeds, fertilizers, fuels and lubricants, mechanized and manual work, and etc. The energy efficiency was determined by the energy efficiency ratio (Cee) – the ratio of the difference between the reproduced energy (energy consumption of the crop) and the consumed energy efficiency coefficient where the seed with the laboratory similarity was sown more than 95 % – (Cee = 5.51). When used for sowing seeds with a laboratory similarity of more than 91–95 %, the energy efficiency was slightly lower than that of sowing seeds more than 95 % and was 5.42. With the increasing of plant density to harvesting from 80–90 to 101–110 thousand/ha, the energy output from the harvest increased from 829521 to 905520 MJ, but due to higher yields in variants where the plant density was 101-110 thousand/ha of energy, comparatively before control was higher. The energy efficiency ratio tended to decrease both for the use of hybrids and for the introduction of trace elements in the feed and amounted to 5.57–6.08. Conclusions. It is proved that the developed agrotechnological measures for sugar beet cultivation in the line hybrid – the quality of the seeds – the plant stomatal density – fertilizers – the duration of the vegetation period, provide a high economic effect. The formation of optimal sugar beet seeding on the area provided the highest yield of energy with the yield on variants with double application of microfertilizers in the non-root nutrition. Key words: sugar beets, bioenergy efficiency, similarity of sown seeds, plant density, varietal composition, foliar nutrition, duration of vegetation period.

THE IMPACT OF MINERAL FERTILIZERS ON THE BIOLOGICAL YIELD OF SUGAR BEET CROP (BETA VULGARIS L. VAR. SACCHARIFERA)

2018 ◽  
Vol 28 (4) ◽  
pp. 1281-1284
Author(s):  
Petar Petrov ◽  
Bojan Mitrovski
Keyword(s):  
Sugar Beet ◽  
Field Trials ◽  
Mineral Fertilizers ◽  
Qualitative Properties ◽  
New Production ◽  
Economic Significance ◽  
Random Block ◽  
Biological Yield ◽  
Sugar Beet Crop ◽  
The Impact

Due to the great economic significance of the sugar beet, the new production trends are aimed at improving the quantitative and qualitative properties and one of the basic agro technical measures that is directly dependent on the yield and quality of the turnip is the properly conducted plant nutrition. Exporting high quantities of nutrients from the soil, the sugar beet requires application of advanced agro-technology, primarily application of adequate and controlled nutrition and irrigation. Application of this measure, in combination with soil processing, has sustained influence over the following cultures in the crop rotation in terms of nutrients regiment and fight against weeds.In order to determine the effects of mineral fertilizers on sugar beet, field experiment was conducted on fluvisol soil. The experiment is set according to a random block system, following the standard methods of agricultural chemistry for conducting field trials. The experiment includes eight variants, as follows: 1. Control (non-fertilized), 2. NP, 3. NK, 4. PK, 5. NPK, 6. N2PK, 7. N2P2K, 8. N3PK.In the phase of technological maturity of sugar beet, collection of the vegetative material and measurement of the height of the biological yield of the turnips was carried out. Based on the survey results, it can be concluded that the variant N2P2K has achieved the highest yield of swollen roots, i.e. 69.330 kg/ha. The highest yield of leafy greens was achieved in the variant N3PK, i.e. 41.920 kg/ha, which indicates the fact that nitrogen has direct influence over the vegetation mass of sugar beet.

scholarly journals Early Sowing Combined with Adequate Potassium and Sulfur Fertilization: Promoting Beta vulgaris (L.) Yield, Yield Quality, and K- and S-Use Efficiency in a Dry Saline Environment

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 806
Author(s):  
Ali A. A. Mekdad ◽  
Mostafa M. Rady ◽  
Esmat F. Ali ◽  
Fahmy A. S. Hassan
Keyword(s):  
Plant Physiology ◽  
Sugar Beet ◽  
Growth Yield ◽  
Sugar Yield ◽  
Growth And Yield ◽  
Path Coefficient ◽  
Root Yield ◽  
Yield And Quality ◽  
Study Results ◽  
Positive Direct

Field trials for two seasons (2018/2019 and 2019/2020) were conducted to investigate the influence of the addition of three levels of potassium (K) (K1 = 60, K2 = 120, and K3 = 180 kg K2O ha−1) and/or sulfur (S) (S1 = 175, S2 = 350, and S3 = 525 kg CaSO4 ha−1) to the soil, as well as the sowing date (the 1st of September, D1; or the 1st of October, D2) on the potential improvement of physiology, growth, and yield, as well as the quality characteristics of sugar beet yield under soil salinity conditions. With three replicates specified for each treatment, each trial was planned according to a split-split plot in a randomized complete block design. The results revealed that early sowing (D1) led to significant improvements in all traits of plant physiology and growth, in addition to root, top, and biological yields and their quality, gross and pure sugar, and K- and S-use efficiencies based on root yield (R-KUE and R-SUE). The K3 level (180 kg K2O ha−1) positively affected the traits of plant physiology, growth, yield and quality, and R-SUE, and reduced the attributes of impurities, impurity index, and R-KUE. Additionally, the S3 level (525 kg CaSO4 ha−1) affirmatively affected plant physiology, growth, yield and quality traits, and R-KUE, and decreased impurity traits, impurity index, and R-SUE. The interaction of D1 × K3 × S3 maximized the yield of roots (104–105 ton ha−1) and pure sugar (21–22 ton ha−1). Path coefficient analysis showed that root yield and pure sugar content had positive direct effects with 0.62 and 0.65, and 0.38 and 0.38 in both studied seasons, respectively, on pure sugar yield. Significant (p ≤ 0.01) positive correlations were found between pure sugar yield and root yield (r = 0.966 ** and 0.958 **). The study results recommend the use of the integrative D1 × K3 × S3 treatment for sugar beet to obtain maximum yields and qualities under salt stress (e.g., 8.96 dS m−1) in dry environments.

scholarly journals Number of Microorganisms in the Soil Cultivated with Legume-Grass Mixtures Supplied with Phytohormones and Nitrogen

2014 ◽  
Vol 6 (4) ◽  
pp. 498-504
Author(s):  
Jacek SOSNOWSKI ◽  
Kazimierz JANKOWSKI ◽  
Roxana VIDICAN ◽  
Beata WIŚNIEWSKA-KADŻAJAN ◽  
Elżbieta MALINOWSKA ◽  
...  
Keyword(s):  
Soil Microorganisms ◽  
Soil Fungi ◽  
Red Clover ◽  
Soil Material ◽  
Humus Layer ◽  
Number Of Microorganisms ◽  
Four Levels ◽  
Intensive Development ◽  
Number Of Bacteria ◽  
Different Doses

The study concerned the number of microorganisms colonizing the humus layer and under plough soil from the cultivation of perennial ryegrass mixtures with red clover, which were fed by biostimulant based on the phytohormones  and different doses of nitrogen. Nitrogen was applied at four levels-control (no nitrogen), 50, 100 and 150 kg N∙ha-1, biostimulant in two combinations - with and without preparation. Soil material to assess the size of individual groups of microorganisms was collected from each experimental plot in autumn 2010 from the humus (0-20 cm) and under plough layers (20-40 cm). The analysis of soil samples for a total number of bacteria, actinomycetes and fungi was conducted at the Department of Agricultural Microbiology IUNG-PIB in Pulawy. Results of studies have shown that more colonies of bacteria, actinomycetes and fungi were colonized the humus horizon. Biostimulant application in this cultivation led to a decrease of the total number of colonies of the all soil microorganisms groups but improved the ratio of bacteria to fungi. Increasing doses of mineral nitrogen by the limiting of the bacteria number and intensive development of soil fungi, helped to narrow the B/F ratio.

scholarly journals RESEARCH OF HEAVY METAL SUPPLY IN AGROLANDSCAPE DURING THE VEGETATION PERIOD

2021 ◽  
pp. 4-8
Author(s):  
A. Ilinskiy
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Agricultural Landscape ◽  
Experimental Studies ◽  
Growing Season ◽  
Vegetation Period ◽  
Mineral Fertilizers

The paper presents the results of a study of the intake of heavy metals into the agricultural landscape during the growing season. In the article of the parish, their intake with mineral fertilizers, seeds, precipitation was taken into account. Studies have shown that precipitation is the most significant input of the studied heavy metals into the agricultural landscape. Depending on the variant of the experiment, their input with precipitation varies as follows: for copper 77.5 - 95.9%; for zinc 50.5 - 82.0%; for lead 49.3 - 89.4%; for cadmium 68.4 - 94.7%. Based on the results of experimental studies, an empirical series of pollutants entering the agricultural landscape was built: Zn  Cu  Pb Cd.

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