scholarly journals Potassium humate and NPK application rates influence yield and economic performance of potato crops grown in clayey loam soils

2018 ◽  
Vol 37 (1) ◽  
pp. 53-61
Author(s):  
Muhammad Idrees ◽  
◽  
Muhammad Akbar Anjum ◽  
Javed Iqbal Mirza ◽  
◽  
...  
Keyword(s):  
Economic Performance ◽  
Clayey Loam ◽  
Potassium Humate ◽  
Application Rates ◽  
Potato Crops

scholarly journals Responses of Potato (Solanum tuberosum) to Glomus sp. Combined with Pseudomonas diminuta at Different Rates of NPK Fertilizers

2017 ◽  
Vol 2 (6) ◽  
pp. 102
Author(s):  
Anne Nurbaity ◽  
Emma Trinurani Sofyan ◽  
Jajang Sauman Hamdani
Keyword(s):  
Scale Up ◽  
Am Fungi ◽  
Potato Production ◽  
Farming System ◽  
Npk Fertilizers ◽  
Application Rates ◽  
Npk Fertilizer ◽  
Pseudomonas Diminuta ◽  
Potato Crops ◽  
Glomus Sp

Conventional farming for potato production in Indonesia has been using NPK fertilizer at high application rates. Any adverse environmental effects that might arise trough this fertilizer use shall be avoided. Application of bioferrtilizer consisted of ArbuscularMycorrhizal Fungi (Glomus sp.) isolated from the potato farming area and Mycorrhizal Helper Bacteria (Pseudomonas diminuta) have been tested to reduce the use of NPK rates in the production of potato crops. The inoculant has been pot-cultured prior to its application on potato crops. The controlled-field site experiment, used the mixtures of spores of Glomus sp. and inoculant of Pseudomonas diminuta, applied at different rates of NPK fertilizer. Results of the experiment showed that the application of Glomus sp. and Pseudomonas diminuta reduced the use of NPK up to 50%, where the growth, nutrients uptake(N,P,K), and tubers of potato had similar effect to the highest recommendation rate of NPK fertilizer (being applied by the farmers). Findings from this experiment confirmed the evidences that application of AM fungi and mycorrhizal helper bacteria could reduce the use of chemical fertilizer which support sustainable farming system. Further step has been done to scale up the production of inoculants for the wider use by local farmers. Keywords:Glomus, Pseudomonas, mycorrhiza, potato, NPK fertilizer.

Life-cycle assessment of the intensity of production on the greenhouse gas emissions and economics of grass-based suckler beef production systems

2013 ◽  
Vol 151 (5) ◽  
pp. 714-726 ◽  
Author(s):  
A. M. CLARKE ◽  
P. BRENNAN ◽  
P. CROSSON
Keyword(s):  
Life Cycle Assessment ◽  
Economic Performance ◽  
Production Systems ◽  
Ghg Emissions ◽  
Bioeconomic Model ◽  
Fertilizer N ◽  
Beef Production ◽  
N Application ◽  
Application Rates ◽  
The Impact

SUMMARYIn Ireland, the largest contributor of greenhouse gas (GHG) emissions is agriculture. The objective of the current study was to evaluate the impact of stocking intensities of beef cattle production systems on technical and economic performance and GHG emissions. A bioeconomic model of Irish suckler beef production systems was used to generate scenarios and to evaluate their technical and economic performance. To model the impact of each scenario on GHG emissions, the output of the bioeconomic model was used as an inventory analysis in a life-cycle assessment model and various GHG emission factors were integrated with the production profile. All the estimated GHG emissions were converted to their 100-year global warming potential carbon dioxide equivalent (CO2e). The scenarios modelled were bull/heifer and steer/heifer suckler beef production systems at varying stocking intensities. According to policy constraints, stocking intensities were based on the excretion of organic nitrogen (N), which varied depending on animal category. Stocking intensity was increased by increasing fertilizer N application rates. Carcass output and profitability increased with increasing stocking intensity. At a stocking intensity of 150 kg N/ha total emissions were lowest when expressed per kg of beef carcass (20·1 kg CO2e/kg beef) and per hectare (9·2 tCO2e/ha) in the bull/heifer system. Enteric fermentation was the greatest source of GHG emissions and ranged from 0·49 to 0·47 of total emissions with increasing stocking intensity for both production systems. The current study shows that increasing stocking intensity via increased fertilizer N application rates leads to increased profitability on beef farms with only modest increases in GHG emissions.

Family Identification with the Firm, Non-family Stakeholders Orientation, and Economic Performance--Model

2020 ◽  
Author(s):  
Mª de la Cruz Déniz‐Déniz ◽  
Mª Katiuska Cabrera-Suárez ◽  
Josefa D. Martín-Santana
Keyword(s):  
Economic Performance ◽  
Performance Model

Between Modernization and Stagnation: Economic Policy in 2012

2013 ◽  
pp. 4-23 ◽  
Author(s):  
V. Mau
Keyword(s):  
Economic Policy ◽  
Economic Development ◽  
Russian Economic Development ◽  
Structural Transformation ◽  
Economic Performance ◽  
Historical Analysis ◽  
Oil Boom ◽  
The World

The paper deals with the trends in the world and Russian economies towards development of a new post-crisis system, including technological and structural transformation. Three main scenarios of Russian economic development (conservative, innovation and acceleration) are discussed basing on historical analysis of Russian economic performance since 1970-s when oil boom started. On this basis key challenges of economic policy in 2013 are discussed.

Waiting for a New Model of Growth: Russia’s Social and Economic Development in 2013

2014 ◽  
pp. 4-32 ◽  
Author(s):  
V. Mau
Keyword(s):  
Economic Policy ◽  
Economic Development ◽  
Economic Performance ◽  
Growth Rates ◽  
Global Crisis ◽  
New Model ◽  
Social And Economic Development ◽  
Economic Risks

The paper deals with Russian social and economic development in 2013 and prospects for the next year or two. The author discusses the logic and trends of the global crisis started in 2008. This is the basis for further analysis of current Russian economic performance with special emphasis on the problem of growth rates deceleration. Special attention is paid to economic risks and priorities of economic policy.

Economics of Happiness as an Academic Research Discipline

2012 ◽  
pp. 94-107 ◽  
Author(s):  
O. Antipina
Keyword(s):  
Economic Performance ◽  
Research Methodology ◽  
Academic Research ◽  
Well Being ◽  
Economic Indicators ◽  
Research Discipline ◽  
Happiness Economics ◽  
Education And Health ◽  
Economics Of Happiness ◽  
Happiness Level

The article contains a review of the contemporary research in the field of economics of happiness. Economics of happiness deals with correlation between the subjective notion of well-being and happiness with ones life (happiness level) and economic indicators. The author considers the correlation of economic and noneconomic factors. The last ones —  such as education and health — also affect the level of happiness. The author dwells upon the following questions: research methodology in economics of happiness, correlation between subjective notion of well-being and happiness with ones life and economic performance on micro- and macrolevels.

The Impact of Property Characteristics on Economic Performance of Russian Industrial Enterprises

2005 ◽  
pp. 53-68 ◽  
Author(s):  
R. Kapeliushnikov ◽  
N. Demina
Keyword(s):  
Detailed Analysis ◽  
Economic Performance ◽  
Ownership Concentration ◽  
Corporate Sector ◽  
Concentrated Ownership ◽  
Industrial Enterprises ◽  
Russian Industry ◽  
Control Premium ◽  
And Performance ◽  
The Impact

The paper provides new survey evidence on effects of concentrated ownership upon investment and performance in Russian industrial enterprises. Authors trace major changes in their ownership profile, assess pace of post-privatization redistribution of shareholdings and provide evidence on ownership concentration in the Russian industry. The major econometric findings are that the first largest shareholding is negatively associated with the firm’s investment and performance but surprisingly the second largest shareholding is positively associated with them. Moreover, these relationships do not depend on identity of majority shareholders. These results are consistent with the assumption that the entrenched controlling owners are engaged in extracting "control premium" but sizable shareholdings accumulated by other blockholders may put brakes on their expropriating behavior and thus be conductive for efficiency enhancing. The most interesting topic for further more detailed analysis is formation, stability and roles of coalitions of large blockholders in the corporate sector of post-socialist countries.

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