scholarly journals Modeling of sod-podzolic soil fertility indicators optimization in the course of a field experiment

2020 ◽  
Vol 17 ◽  
pp. 00128
Author(s):  
Alexander Ilves ◽  
Lyudmila Smolina ◽  
Dmitry Danilov
Keyword(s):  
Soil Fertility ◽  
Mineral Nutrition ◽  
Field Experiments ◽  
Soil Improvement ◽  
Point Of View ◽  
Soil Enrichment ◽  
Podzolic Soils ◽  
Specific Accumulation ◽  
Complex Relationships ◽  
The Impact

The formation of primary experimental material was carried out in the form of production seeding and field experiments. Among a large number of indicators assessing certain parameters of soil fertility from the point of view of fertility reproduction, stable characteristics determining agronomic soil value are of the highest importance For sod-podzolic soils, such characteristics are the granulometric composition, the content of organic matter and available forms of mineral nutrition elements, the acidity level. The impact on these indicators determines the effectiveness of soil improvement measures. Based on the generalization of experimental data, on the mathematical and statistical methods, the optimal parameters of these properties for specific crops were determined. To improve and manage soil fertility, it is also necessary to further develop special regulations related to soil enrichment with elements aimed at mineral nutrition of plants and humus. There are complex relationships between the doses of fertilizers and the specific accumulation of the relevant substances, which should be studied in special experiments.

The impact of diversification of a rice–wheat cropping system on crop productivity and soil fertility

2002 ◽  
Vol 139 (4) ◽  
pp. 405-412 ◽  
Author(s):  
V. K. SINGH ◽  
B. B. SHARMA ◽  
B. S. DWIVEDI
Keyword(s):  
Soil Fertility ◽  
Green Manure ◽  
Protein Production ◽  
Field Experiments ◽  
Block Design ◽  
Crop Productivity ◽  
Research Centre ◽  
Wheat Crop ◽  
Cropping Intensity ◽  
The Impact

Field experiments were conducted at the Crop Research Centre of Govind Ballabh Pant University of Agriculture and Technology, Pantnagar during 1996/97 and 1997/98. Each experiment comprised 10 crop sequences: (a) wheat–rice, (b) chickpea–rice, (c) lentil–rice, (d) pea–rice, (e) wheat–mungbean green manure–rice, (f) wheat–Sesbania green manure–rice, (g) wheat–fodder–rice, (h) chickpea–fodder–rice, (i) lentil–fodder–rice and (j) pea–fodder–rice, in a randomized block design with four replications. The crop sequences were compared in terms of economic rice equivalent yield (REY), protein production, apparent nutrient balances and effect on soil fertility status. Amongst crop sequences involving two crops each year (200% cropping intensity), chickpea–rice gave highest REY and protein production. Of the sequences involving three crops each year (300% cropping intensity), chickpea–fodder–rice and wheat–fodder–rice were superior to others. The P balances were positive for all sequences, whereas K balances were generally negative except for sequences involving green manure legumes. Green manuring with Sesbania or mungbean helped restore soil fertility, indicating the advantage of green manure for higher productivity and sustainability of rice–wheat system. Chickpea–rice and chickpea–fodder–rice appeared promising alternatives to rice–wheat crop sequence.

scholarly journals Impact of Long Term Application of Inorganic Fertilizers and Organic Manure on Soil Fertility and Crop Productivity under Soybean-Wheat Cropping System in a Vertisol

2021 ◽  
pp. 24-30
Author(s):  
Nilesh Patidar ◽  
A. K. Dwivedi ◽  
B. S. Dwivedi ◽  
R. K. Thakur ◽  
Jalendra Bairwa ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Field Experiments ◽  
Block Design ◽  
Cropping System ◽  
Crop Productivity ◽  
Organic Manure ◽  
Inorganic Fertilizers ◽  
Available N ◽  
The Impact

The field experiments was conducted is an ongoing All India Co-ordinate Research Project on “Long term Fertilizer Experiment” during 2018-2019 with soybean-wheat cropping sequence at the Research Farm Department of Soil Science, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (M.P.), India. The objective of the study was the Impact of long term application of inorganic fertilizers and organic manure on soil fertility and crop productivity under soybean-wheat cropping system in a Vertisol. The experiment consists of ten treatments i.e. T1 50% NPK, T2 100% NPK, T3 150% NPK, T4 100% NPK + Hand Weeding, T5 100% NPK + Zn, T6 100% NP, T7 100% N, T8 100% NPK+ Farm Yard Manure, T9 100% NPK–S and T10 unfertilized plot (control) with four replications in a randomized block design. The findings of the present study indicated that the soil pH and EC were remaining unaltered even after continuous application of variable amounts of fertilizers either alone or in combination. A significant positive change in soil organic carbon, available N P K and S content was observed with continuous additions of balanced fertilizers and manures over the imbalanced or unfertilized treatments. The findings showed that the application of recommended dose of N, P and K (20:80:20 kg ha-1 for soybean and 120:80:40 kg ha-1 for wheat) with organic manure (FYM) @ 5 t ha-1 resulted in 185.8% and 325.9% increase over control in soybean and wheat yields, respectively. Thus, the continuous use of balanced fertilization, either alone or in combination with organic manure is necessary for sustaining soil fertility and productivity of crops.

scholarly journals ​Impact Assessment of Oil Exploration Activities on Soil Fertility in Delta State, Nigeria

2021 ◽  
Author(s):  
S.A. Ojobor ◽  
O.F. Omovie-Stephen ◽  
O. Abirhire
Keyword(s):  
Organic Matter ◽  
Soil Fertility ◽  
Room Temperature ◽  
Soil Improvement ◽  
Oil Exploration ◽  
Limited Information ◽  
Nutrient Index ◽  
Calcium Magnesium ◽  
The Impact ◽  
Nitrogen Phosphorus

Background: Limited information on impact of oil exploration on soil fertility in Nigeria is hindering the efforts toward soil improvement. Hence, the impact of oil exploration on soil fertility in four local government areas (LGA), Delta State, Nigeria was evaluated in 2020. Methods: Two LGAs in oil producing (Ukwani, Ndokwa) and non oil producing (Aniocha South, Ika South) and three communities in each LGA and one crop largely cultivated was purposely chosen. Soil samples were taken from 0-30 cm depth at 10 meters intervals along transverses cut at 100 m apart. The samples were air-dried at room temperature, crushed and made to pass 2 mm sieve. Soil pH, organic matter, nitrogen, phosphorus, calcium, magnesium, potassium and sodium were measured. Data were statistical analyzed and least significance difference at α0.05 was used to separate means while Parker’s nutrient index was used to rate the fertility. Result: Ukwani soil was strongly acidity (5.30), Ndokwa was moderately acidity (5.83) while Ika (6.61) and Aniocha (6.27) were slightly acidity. Organic matter (2.54 and 2.48%) and phosphorus (16.98 and 14.51 mg/kg) were medium in Ika and Aniocha whereas, both were low in Ukwani (1.49%, 10.14 mg/kg) and Ndokwa (1.74%, 12.52 mg/kg), respectively. Nitrogen was high in Ika (0.27%) and Aniocha (0.42%), medium in Ndokwa (0.18%) and low in Ukwani (0.15%). Potassium and sodium were high in Ika, Aniocha and Ukwani but medium in Ndokwa. Calcium was high in Ika, medium in Aniocha but low in Ndokwa and Ukwani. Magnesium was high in Ika, Aniocha and Ndokwa but was medium in Ukwani.

scholarly journals THE IMPACT OF BIOLOGICAL PREPARATIONS ON THE EFFECTIVE SOIL FERTILITY AND MINERAL NUTRITION OF APRICOT AND CHERRY PLUM SEEDLINGS

2015 ◽  
Vol 21 ◽  
pp. 31-38
Author(s):  
O. E. Klymenko ◽  
M. I. Klymenko ◽  
I. A. Kameneva
Keyword(s):  
Organic Matter ◽  
Soil Fertility ◽  
Mineral Nutrition ◽  
Organic Matter Content ◽  
Mineral Elements ◽  
Positive Influence ◽  
Matter Content ◽  
Planting Material ◽  
Effective Use ◽  
The Impact

The effect of microbial preparations (MP) use, created on the basis of nitrogen-fixing and phosphorous mobilizing bacteria as well as complex of microbial preparations (CMP) on the effective soil fertility, mineral nutrition and efficiency of cherry plum and apricot seedlings growing was studied in the fruit nursery on the southern chernozems for three years. It was established that MP’s had a positive influence on the content of mineral elements in the soil and the leaves of fruit plants while promoting output of the standard planting material. Azotobacterine and CMP had the best effect on these indicators. Slight decrease of organic matter content in the soil under the cherry plum seedlings in MP variants was observed. Replenishment of the soil with organic matter is recommended for the effective use of MPs.

scholarly journals Yield and quality of carrots when using the Gumiton organo-mineral complex in conditions of radioactive contamination

2021 ◽  
Vol 12 (5) ◽  
pp. 1955-1959
Author(s):  
Ratnikov A. N, Et. al.
Keyword(s):  
Radioactive Contamination ◽  
Field Experiments ◽  
Soddy Podzolic Soil ◽  
137Cs Content ◽  
Podzolic Soils ◽  
Mineral Complex ◽  
Root Crops ◽  
Crop Development ◽  
The Impact

The aim of this work is to assess the impact of Gumiton peat-based organo-mineral complex on the productivity and quality of carrots and the transition of 137Cs from soil to root crops under conditions of radioactive contamination. According to the results of field experiments on gray forest and soddy-podzolic soils of the Kaluga region of Russia, it is shown that leaf treatment with Gumiton of carrot plantings in different phases of crop development increases the yield of root crops by 20-40%, depending on the variety, soil type and agricultural background. Analysis of studies in the growing experiment on soddy-podzolic soil showed that Gumiton treatment increases the yield of carrots by 30%. The rate of decrease of 137Cs content is 1,2-1,25 times. Gumiton is a highly effective preparation for carrots, which increases the productivity and quality of the crop and helps to reduce the intake of 137Cs in root crops in radioactively contaminated areas.

scholarly journals Effectiveness of habitat management for improving grey partridge populations: a BACI experimental assessment

2012 ◽  
Vol 35 (2) ◽  
pp. 405-413
Author(s):  
E. Bro ◽  
◽  
P. Mayot ◽  
F. Reitz ◽  
◽  
...  
Keyword(s):  
Reproductive Success ◽  
Habitat Management ◽  
Field Experiments ◽  
Point Of View ◽  
Food Supplementation ◽  
Feeding Intensity ◽  
Grey Partridge ◽  
Positive Effects ◽  
Pair Density ◽  
The Impact

We assessed the impact of field division (4 m bare ground strips within wheat fields) and food supplementation (supplied through grain feeders) on grey partridge Perdix perdix L. populations using six–year ‘before–after’/’control–impact’ (BACI) experiments. We did not detect any convincing positive effects of either of these two schemes on partridge pair density and reproductive success. Increases in pair densities were similar on managed and control areas, and contrasting results were found between some sites. No consistent pattern was observed between reproductive success and feeding intensity. Our studies highlight the need for field experiments at farm–scale to test the effectiveness of management measures. We conclude that, in the context in which they are applied, management techniques directed towards increasing partridge density do not systematically provide the desired outcome. We develop our point of view about management in the Discussion.

scholarly journals Yield and quality of carrots when using the Gumiton organo-mineral complex in conditions of radioactive contamination

2021 ◽  
Vol 12 (2) ◽  
pp. 3351-3355
Author(s):  
Ratnikov A. N., Et. al.
Keyword(s):  
Radioactive Contamination ◽  
Field Experiments ◽  
Soddy Podzolic Soil ◽  
137Cs Content ◽  
Podzolic Soils ◽  
Mineral Complex ◽  
Root Crops ◽  
Crop Development ◽  
The Impact

The aim of this work is to assess the impact of Gumiton peat-based organo-mineral complex on the productivity and quality of carrots and the transition of 137Cs from soil to root crops under conditions of radioactive contamination. According to the results of field experiments on gray forest and soddy-podzolic soils of the Kaluga region of Russia, it is shown that leaf treatment with Gumiton of carrot plantings in different phases of crop development increases the yield of root crops by 20-40%, depending on the variety, soil type and agricultural background. Analysis of studies in the growing experiment on soddy-podzolic soil showed that Gumiton treatment increases the yield of carrots by 30%. The rate of decrease of 137Cs content is 1,2-1,25 times. Gumiton is a highly effective preparation for carrots, which increases the productivity and quality of the crop and helps to reduce the intake of 137Cs in root crops in radioactively contaminated areas.

The Geosciences Applied to Lunar Exploration

1962 ◽  
Vol 14 ◽  
pp. 169-257 ◽  
Author(s):  
J. Green
Keyword(s):  
Lunar Surface ◽  
Probable Mechanism ◽  
Point Of View ◽  
Lunar Exploration ◽  
Geological Model ◽  
Apply Geophysics ◽  
Surface Features ◽  
The Impact

The term geo-sciences has been used here to include the disciplines geology, geophysics and geochemistry. However, in order to apply geophysics and geochemistry effectively one must begin with a geological model. Therefore, the science of geology should be used as the basis for lunar exploration. From an astronomical point of view, a lunar terrain heavily impacted with meteors appears the more reasonable; although from a geological standpoint, volcanism seems the more probable mechanism. A surface liberally marked with volcanic features has been advocated by such geologists as Bülow, Dana, Suess, von Wolff, Shaler, Spurr, and Kuno. In this paper, both the impact and volcanic hypotheses are considered in the application of the geo-sciences to manned lunar exploration. However, more emphasis is placed on the volcanic, or more correctly the defluidization, hypothesis to account for lunar surface features.

МАРКЕТИНГОВІ АСПЕКТИ ФУНКЦІОНУВАННЯ ЛІТЕРАТУРНИХ КОНКУРСІВ ТА ПРЕМІЙ

2020 ◽  
pp. 90
Author(s):  
O. Bondar
Keyword(s):  
Publishing House ◽  
Target Audience ◽  
Point Of View ◽  
Information Support ◽  
Literary Field ◽  
Non Profit ◽  
Functional Aspects ◽  
The Media ◽  
Literary Prizes ◽  
The Impact

<p><em>In this study, I have collected and summarized the functional aspects of a literary prize, contest, and rating, which indicate their affiliation with the marketing complex of the publishing house for the first time. For this purpose, I have analyzed and summarized the common concepts of the functioning of literary prizes and contests as advertising tools for publishing activity. Because the previous studies are only focused on the fact of the impact of the prize on the promotion of editions but do not explain it, these aspects have been considered and introduced by me from the book production’s point of view. I investigated that the prizes and the contests in the literary field are effective marketing tools, which meet many publisher’s needs at the same time and can be considered a non-profit form of capital. I have reviewed the works of other authors, who accept that the economic success of the book is rising if the author is a winner of the literary prize or contest. I have found out that the book prize activates the demand for the book, and the literary contest is a tool to track the reader’s reaction to a future publication. In this way, literary prizes and contests can be considered as a way of conducting a marketing dialogue with the target audience. I have focused on the information support of literary national and international prizes and contests by the media, which attracts attention to the book and forms the reader’s interest. The literary prizes and contests are also considered as a way of exploring trends and their changes, familiarization the popular genres among the target audience and fixation the current choice of modern readers. Literary prizes and contests motivate the authors to improve their literary excellence, are the source of new authors and works, and assist in increasing sales of books. However, further research is recommended.</em></p><strong><em>Key words:</em></strong><em> book prize, book rating, literary contest, literary prize, functions of the literary prizes.</em>

On the Impact of Aptness, Conventionality and Familiarity on Metaphor Processing from a Meta-analytical Point of View

2020 ◽  
Vol 6 (1) ◽  
pp. 55-106
Author(s):  
Csilla Rákosi
Keyword(s):  
Meta Analysis ◽  
Point Of View ◽  
Psycholinguistic Research ◽  
Analytical Point ◽  
Metaphor Processing ◽  
The Impact

Psycholinguistic research into metaphor processing is burdened with empirical problems as experiments provide diverging evidence on the impact of conventionality, familiarity and aptness, and with conceptual issues as the interpretation and operationalization of the three concepts mentioned, as well as the related predictions which can be drawn from theories of metaphor processing, are controversial in the literature. This paper uses tools of statistical meta-analysis in order to bring us closer to the solution of these problems and reveal future lines of research.

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