scholarly journals The Role of Post-grain Residues in Increasing Soil Fertility

2019 ◽  
Vol 5 (12) ◽  
pp. 191-196
Author(s):  
E. Allahverdiev
Keyword(s):  
Soil Fertility ◽  
Physical Properties ◽  
Growing Season ◽  
Mineral Fertilizers ◽  
Plant Residues ◽  
Quantitative Composition ◽  
Qualitative And Quantitative ◽  
Organic And Mineral Fertilizers ◽  
Fertilizer Rates

The analysis of the condition of the areas after sowing grain. The results of the influence of organic and mineral fertilizers under various irrigation regimes are analyzed. Various fertilizer and watering options were investigated. The qualitative and quantitative composition of the soil was determined. The research results showed that with 3 irrigations during the growing season and fertilizer rates N120P150K150, the largest accumulation of grain residues occurs. Plant residues contribute to an increase in the content of organo-biological substances, as well as improving the water-physical properties of soils and increasing their fertility.

scholarly journals The Effect of Organic and Mineral Fertilizers on the Dynamics of Nutrients in Irrigated Gray-Brown Soils of the Absheron Peninsula

2020 ◽  
Vol 6 (12) ◽  
pp. 87-99
Author(s):  
Sh. Mammadova
Keyword(s):  
Growing Season ◽  
Maximum Amount ◽  
Similar Process ◽  
Mineral Fertilizers ◽  
Available Phosphorus ◽  
Fertilization Rates ◽  
Mobile Phosphorus ◽  
Organic And Mineral Fertilizers ◽  
Fertilizer Rates ◽  
Generative Organs

The introduction of various fertilizer rates led to a change in the amount of nutrients in the irrigated gray-brown soils of the Absheron Peninsula. The amount of nitrates and ammonia absorbed in soils under legumes increased with increasing fertilization rates. In the course of the experiment, the maximum amount of available phosphorus in the control compared with the soils under legumes was recorded at the early stages of their development. In connection with the formation of vegetative and generative organs of plants during the growing season, the use of mobile phosphorus from the soil by plants increased. The minimum amount of mobile phosphorus in the soil was observed when legumes were fully ripe. A similar process was observed in the content of exchangeable potassium in the soil.

scholarly journals Fertilizers Effect on the Chemical Composition of Vegetable Beans

2020 ◽  
Vol 6 (11) ◽  
pp. 188-196
Author(s):  
Sh. Mammadova
Keyword(s):  
Chemical Composition ◽  
Environmental Factors ◽  
Soil Fertility ◽  
Plant Development ◽  
Nitrogen Availability ◽  
Growing Season ◽  
Mineral Fertilizers ◽  
Green Beans ◽  
Seed Formation ◽  
Organic And Mineral Fertilizers

The article presents the results of studies on the change in the intensity of accumulation of nutrients in seeds, in the trunk, root and leaves of green beans, depending on the phase of plant development. The change of indicators of nitrogen availability in the branching phase was 1,05–1,61%, phosphorus 0,79–1,25, and potassium 1,30–1,92%; in the flowering phase respectively 0,84–1,28%; 0,44–0,87%, and 0,95–1,35%; during the period of beans formation: nitrogen 2,26–2,93%, phosphorus 0,85–1,54%; potassium 1,17–1,65%; in the phase of seed formation, respectively 3,51–4,03%; 0,74–1,01%; and 0,86–1,07%. It was revealed that the effectiveness of the use of organic and mineral fertilizers directly depends on the degree of soil fertility, on the phases of plant development during the growing season and other environmental factors.

scholarly journals Scientific bases of the humus stabilization in ordinary chernozem in Russia

2019 ◽  
Vol 52 (1) ◽  
pp. 113
Author(s):  
Oleg Goryanin ◽  
Anatoly Chichkin ◽  
Baurzhan Dzhangabaev ◽  
Elena Shcherbinina
Keyword(s):  
Soil Fertility ◽  
Humus Content ◽  
Perennial Grasses ◽  
Crop Rotations ◽  
Organic Fertilizers ◽  
Annual Rainfall ◽  
Ordinary Chernozem ◽  
Mineral Fertilizers ◽  
Plant Residues ◽  
Middle Volga Region

<p>The influence of long-term use of mineral and organic fertilizers, crop rotations, plant residues, soil treatment systems on humus content of common chernozems and stabilization of productivity of field crops in the arid conditions of the Middle Volga region is considered on the example of researches in the Samara area. The zone climate of field experiments is characterized as extremely continental. The sum of the active temperatures (above 10°C) is 2,800-3,000°C. The average annual rainfall is 454.1 mm with fluctuations over the years from 187.5 mm to 704.6 mm. At some years, precipitation does not happen within a month or more. Hydrothermal index in May-August is 0,7, the duration of the frost-free period is 149 days. If the humus content in the region is 4.35-4.52%, then, it is necessary to introduce 6.7-8.0 t/ha of manure per year to maintain the balance of the deficit. The introduction of biological methods for the conservation and reproduction of soil fertility (green fertilizers, perennial grasses, straw as fertilizer) reduces the loss of humus by 0.15-0.24 t/ha. This makes it possible to increase the payback of mineral fertilizers, which must be taken into account when developing fertility reproduction systems for soils. In the variants with minimal and differentiated cultivation of the soil during crop rotation in 30 years of the study, the loss of humus in the 0-30 cm layer decreased by 0.04 - 0.73% (43-789 kg per year with maximum values in the combination of direct seeding of spring crops with deep loosening for a number of crop rotations is 4.14%, significantly exceeding the control (by 0.54%). The decrease in soil fertility in the variants with constant plowing and minimal tillage contributed to an increase in the conjugation of productivity of crops with humus. Based on the research, in order to preserve the fertility of the soil of ordinary chernozem, it is necessary to use green fertilizer, leguminous perennial grasses. In the regional rotations of crop production, new generation technologies are recommended, the basis of which is differentiated tillage with the use of crushed straw as fertilizer.</p>

scholarly journals Ability of the soil cellulolytic bacteria to colonize endophytic niche of barley grains

2020 ◽  
Author(s):  
O.V. Sviridova ◽  
◽  
N.I. Vorobyov ◽  
Ya.V. Pukhalsky ◽  
O.N. Kurchak ◽  
...  
Keyword(s):  
Micrococcus Luteus ◽  
Growing Season ◽  
Barley Straw ◽  
Mineral Fertilizers ◽  
Plant Residues ◽  
Cellulolytic Bacteria ◽  
Biological Product ◽  
Presowing Treatment ◽  
Pure Cultures ◽  
Barley Grains

To identify microorganisms that can penetrate into the endophytic niche of the grain of barley plants, many years of vegetative experiments were conducted on sod-podzolic soil without the use of mineral fertilizers. In the non-growing season, a biological product, consisting of cellulolytic association of bacteria with genotypic passport, decomposed barley straw. Presowing treatment of seeds was not carried out, therefore, during the growing season; local microorganisms decomposing plant residues could be present in the barley rhizosphere. After six years of rotation of barley plants, the microbiological composition of its seed niche was studied. As a result, it was found that in the seeds of barley bacteria are present in an amount of 240 ± 20 CFU/g of grain. Isolated pure cultures of microorganisms were identified as Cellulomonas gelida, Micrococcus luteus and Bacillus licheniformis by the sequence of ITS fragments of 16S rRNA. These types of bacteria were also present in the used biological product. Based on the research conducted, it can be assumed, that permanent cultivation of barley plants and sowing of seeds of the previous year can contribute to the formation of effective microbial and plant biosystems that are resistant to environmental stress.

scholarly journals Influence of Fertilizers on the Biodiversity of Semi-natural Grassland in the Eastern Carpathians

2013 ◽  
Vol 41 (1) ◽  
pp. 195
Author(s):  
Costel SAMUIL ◽  
Vasile VINTU ◽  
Culita SIRBU ◽  
Mihai STAVARACHE
Keyword(s):  
Soil Fertility ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Number Of Species ◽  
Nardus Stricta ◽  
Organic And Mineral Fertilizers ◽  
Eastern Carpathians ◽  
Natural Grasslands ◽  
Soil Fertility Status ◽  
Natural Grassland

This investigation examines the influence of fertilization with organic and mineral fertilizers on the biodiversity of grasslands containing Festuca rubra, Agrostis capillaris and Nardus stricta. Permanent meadows were studied in terms of production of food, and of biodiversity. The current strategy of using organic fertilizers has raised concerns about resource conservation and environmental protection. The increase in the number of species is due to the fertilizers that have been applied leading to changes in the soil fertility status. This change in soil fertility has allowed other mesotrophic and eutrophic species to become established in fertilized meadows. In Romania, meadows belonging to this category occupy an area of approximately 1,600,000 hectares and have relatively low production rates. The experiment was located at Pojorata, Suceava County (Romania), in two different natural grasslands that had different floristic compositions. Manure improved the growth of a number of species, especially in the "plants from other botanical families" category, because of the pool of seeds that it contains. Using a management system based on fertilization with small amounts of organic and mineral fertilizers can help preserve the biodiversity of these meadows. The results of this study, in an area considered representative for large parts of the mountainous areas of Romania, indicated that fertilization treatments were able to maintain a high species diversity.

scholarly journals Composition and amount of nutrients entering the soil with cotton biomass and green manure

2021 ◽  
Vol 12 (2) ◽  
pp. 3127-3129
Author(s):  
Hasanova Aynur Oruj, Et. al.
Keyword(s):  
Soil Fertility ◽  
Physical Properties ◽  
Green Manure ◽  
Crop Residues ◽  
High Efficiency ◽  
Developed Countries ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Organic Substances ◽  
Microbiological Processes

The experience of developed countries in the field of agriculture and research results show that high efficiency from mineral fertilizers can be obtained on fertile soils. That is, the soil should contain a large amount of organic substances, microelements, beneficial microorganisms, various enzymes that activate microbiological processes, normalize and optimize the nutritional, thermal and water-physical properties of the soil. This can be achieved by regularly applying crop residues and organic fertilizers to the soil. Siderata - green fertilizers - are of great importance for increasing soil fertility.

scholarly journals Dynamics of soil fertility parameters in the Zaporizhzhya region and the ways of its restoration

2020 ◽  
Vol 4 (2) ◽  
pp. 353-362
Author(s):  
O. L. Romanenko ◽  
I. S. Kushch ◽  
A. V. Agafonova ◽  
Yu. O. Tenyukh ◽  
M. M. Solodushko ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Crop Yields ◽  
Weighted Average ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Nitrogen Fertilizers ◽  
Phosphorus Compounds ◽  
Mineral Fertilizers ◽  
Organic And Mineral Fertilizers ◽  
Positive Balance

During 2000–2018, the results of the application of organic and mineral fertilizers in dynamics and their effect on the content of humus and nutrients in the soils of the Zaporizhzhya region were reviewed. To control the state of soil fertility use the calculation of the balance of humus and nutrients. This makes it possible to determine the extent to which the application of nutrients with fertilizers covers their removal by crop yields. Negative tendencies have been identified, which have led to the deterioration of soil fertility in the Zaporizhia region. Measures are proposed to achieve a deficit-free balance of humus and nutrients. On average, in 2000–2018, the level of mineral fertilizer application in the Zaporizhia region remained low – 38 kg/ha (nitrogen – 28 kg, phosphorus – 7, potassium – 3 kg), and manure – only 0.2 t/ha. According to the results of agrochemical certification of agricultural lands, the dynamics of changes in the content of humus, easily hydrolyzed nitrogen, mobile compounds of phosphorus and potassium over the past 18 years has been determined. The average weighted content of humus in the soils in the VIII round was 3.44 %, IX – 3.52, X – 3.40, XI (2016–2018) – 3.57 %, which indicates the stability of this indicator. The weighted average nitrogen content, which is easily hydrolyzed during all rounds, has close values (83.6–90.3 mg/kg) and corresponds to a low level of its supply. The content of mobile phosphorus compounds during the VIII – IX rounds was quite stable (97.1–101.6 mg/kg), and in the X–XI rounds there was even an increase to 123.3–123.4 mg/kg. The phosphorus regime of soils is stable and corresponds to the increased level of security, except for the ninth round (average). Potassium regime of the soil for eighteen years also remains stable and refers to a high level of security (159.6–176.8 mg/kg). The balance of humus and nutrients in the soils of the region remains negative. There is a tendency of positive changes if we compare the results for the first (2003–2014) and second (2003–2018) periods. Thus, to achieve a positive balance of humus it is necessary to apply 2 t/ha of straw (+400 kg/ha), 20 kg/ha of nitrogen fertilizers and 6.4 t/ha of manure, and in 2003–2018 – respectively 2 t / ha straw (+400 kg/ha), 20 kg/ha of nitrogen, 5.8 t/ha of manure. Key words: soil, balance, dynamics, humus, fertility, organic and mineral fertilizers.

ADUBAÇAO ANTECIPADA COM FERTILIZANTES ORGÂNICO E MINERAL ASSOCIADO À CROTALARIAS NA CULTURA DO MILHO

2017 ◽  
Vol 15 (3) ◽  
pp. 499
Author(s):  
PAULO CÉSAR TIMOSSI ◽  
HILTON ROSA DA SILVA JUNIOR ◽  
SUZETE FERNANDES LIMA ◽  
RONALDO CASTRO ◽  
DIEIMISSON PAULO ALMEIDA
Keyword(s):  
Soil Fertility ◽  
Green Manure ◽  
Mineral Fertilizers ◽  
Organic Fertilization ◽  
Mineral Fertilization ◽  
Crotalaria Juncea ◽  
Factor B ◽  
Corn Crop ◽  
Organic And Mineral Fertilizers ◽  
Crotalaria Spectabilis

RESUMO- A adubação de sistema aliada à adubação verde pode aumentar a disponibilidade de nitrogênio no solo.Objetivou-se na pesquisa investigar se a disponibilidade antecipada de fertilizantes orgânico e mineral sobre o cultivode Crotalaria spectabilis e Crotalaria juncea influência nas características de produção da cultura do milho. Odelineamento experimental adotado foi o inteiramente casualizado, disposto em esquema fatorial 2 x 4, no qual o fatorA foi formado por duas espécies de adubos verdes (Crotalaria spectabilis e Crotalaria juncea) e o fator B foi formadopor três formas de fertilização (PK, NPK e orgânica) e pela ausência de fertilização, com oito repetições. Foramrealizadas avaliações das características agronômicas e produtivas da cultura do milho. O número de fileiras e númerosde grãos por fileira não diferiu entre as formas de fertilização. A maior altura de plantas de milho, altura de inserçãode espiga e produtividade de grãos foi obtida na área cultivada anteriormente com C. spectabilis. A fertilização comNPK e orgânica, com cama-de-aves, resultou em maior produtividade, porém com 800 kg ha-1 de NPK, valor superiorao recomendado. Conclui-se que a antecipação de fertilização do solo, associado ao cultivo de adubos verdes é viávelpara o cultivo da cultura do milho, a C. spectabilis proporciona maior produtividade de grãos de milho em sucessãoe a adubação orgânica, com cama-de-aves, é tão eficiente quanto à adubação mineral com NPK quando antecipada.Palavras-chave: Crotalaria spectabilis, Crotalaria juncea, cama-de-aves, adubação verde, adubação de sistema.PRE-FERTILIZATION WITH ORGANIC AND MINERAL FERTILIZERS ASSOCIATED WITH CROTALARIES IN MAIZEABSTRACT- The fertilization of system combined with green manure can enhance the availability of soil nitrogen.This study aimed to research whether the anticipated availability of organic and mineral fertilizers in the cultivationof Crotalaria spectabilis and Crotalaria juncea affects the characteristics of production of corn crop. The completelyrandomized design (CRD) was used, with eight replications, in factorial arrangement 2 x 4, in which the factor A wasformed by two species of green manure (Crotalaria spectabilis and Crotalaria juncea) and the factor B comprisedthree forms of fertilization (PK, NPK and organic) and the absence of fertilization. Assessments of agronomic andyield characteristics of corn crop were conducted. As conclusion,the anticipation of soil fertility, associated with greenmanure cultivation is viable for cultivation of corn crop, the C. spectabilis provides increased productivity of the corncrop, and the organic fertilization with bed of birds is as efficient as the mineral fertilization with NPK.Keywords: Crotalaria spectabilis, Crotalaria juncea, bed-of-birds, green manure, system fertilization.

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