scholarly journals Review of Soil Salinity and Sodicity Challenges to Crop Production in the Lowland Irrigated Areas of Ethiopia and Its Management Strategies

Land ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1377
Author(s):  
Ashenafi Worku Daba ◽  
Asad Sarwar Qureshi
Keyword(s):  
Soil Salinity ◽  
Crop Production ◽  
Management Strategies ◽  
Mitigation Strategies ◽  
Irrigated Agriculture ◽  
Future Research ◽  
Research Attention ◽  
Farming Communities ◽  
Salt Affected Soils ◽  
Management Approaches

Ethiopia’s irrigated agriculture productivity has been threatened by severe salinity and sodicity problems which have resulted in significantly lower yields, food insecurity, and environmental degradation. The destructive effects of poor irrigation water management with the absence of drainage and anticipated future climate changes can accelerate the formation of salt-affected soil, potentially expanding the problem to currently unaffected regions. This paper synthesizes the available information on the causes, extent, and effects of salt-affected soils on soil and crop production and suggest chemical, biological, and physical reclamation and management approaches for tackling salinity and sodicity problems. The mitigation approaches (e.g., the addition of amendments, plantation of salt-tolerant crops, appropriate irrigation and drainage management, phytoremediation, and bioremediation) have successfully tackled soil salinity and sodicity problems in many parts of the world. These approaches have further improved the socioeconomic conditions of farming communities in salt-affected areas. The paper also discusses the effectiveness of these mitigation strategies under Ethiopian conditions. The policy interventions for reclamation of soil salinity and sodicity that indicates future research attention to restoring agricultural sustainability are also foci of this paper.

Exploring undergraduates’ money-management life: insight from an emerging economy

2019 ◽  
Vol 20 (3) ◽  
pp. 167-189 ◽  
Author(s):  
Vilani Sachitra ◽  
Dinushi Wijesinghe ◽  
Wajira Gunasena
Keyword(s):  
Financial Literacy ◽  
Psychological Factors ◽  
Management Strategies ◽  
The Body ◽  
Future Research ◽  
Money Management ◽  
Content Type ◽  
Financial Decisions ◽  
Management Behaviour ◽  
Management Approaches

Purpose Undergraduates are expected to be future leaders responsible for business and nations. Given that sound financial decision-making is critical to their success in their careers and lives, it is important to understand the money-management behaviour of undergraduates. In the context of developing countries, the body of knowledge on money-management behaviour is dominated by functional financial literature and there is little research on factors beyond this. This study aims to fill this gap by exploring economic, social and psychological factors that influence money-management behaviour of undergraduates in a developing nation (Sri Lanka) and how undergraduates respond to these influences. Design/methodology/approach The study used a qualitative exploratory approach. Data collection was carried out using focus group discussions and individual interviews amongst undergraduates in a leading Sri Lankan state university. Findings The results indicate that undergraduates adopted both careful and risky money-management approaches. The subthemes, specifically identified under economic, social and psychological factors, revealed how undergraduates responded to each of these factors and the influence of contextual and cultural differences in their money-management behaviour. Research limitations/implications Findings of the study revealed the importance of promoting innovative educational strategies to change the dependability mindset of undergraduates and to promote stress-management strategies that will assist them to enhance their personalities and creativity in making financial decisions. Theoretical and practical implications and future research directions are provided. Originality/value The literature scores in developing context are limited to exploring the existing pattern and the levels of the functional financial literacy. This study has deepened the authors’ understanding of how the developing context affects undergraduates’ response to the factors relating to their money-management behaviour. The findings from this study will be useful to government, financial institutions, educational institutions, parents and those who have a keen interest in encouraging healthy money-management behaviour in undergraduates.

scholarly journals Futuristic Sustainable Energy Management in Smart Environments: A Review of Peak Load Shaving and Demand Response Strategies, Challenges, and Opportunities

2020 ◽  
Vol 12 (14) ◽  
pp. 5561 ◽  
Author(s):  
Bhagya Nathali Silva ◽  
Murad Khan ◽  
Kijun Han
Keyword(s):  
Energy Management ◽  
Demand Response ◽  
Energy Demand ◽  
Management Strategies ◽  
Peak Load ◽  
Critical Discussion ◽  
Future Research ◽  
Smart Environments ◽  
Challenges And Opportunities ◽  
Management Approaches

The emergence of the Internet of Things (IoT) notion pioneered the implementation of various smart environments. Smart environments intelligibly accommodate inhabitants’ requirements. With rapid resource shrinkage, energy management has recently become an essential concern for all smart environments. Energy management aims to assure ecosystem sustainability, while benefiting both consumers and utility providers. Although energy management emerged as a solution that addresses challenges that arise with increasing energy demand and resource deterioration, further evolution and expansion are hindered due to technological, economical, and social barriers. This review aggregates energy management approaches in smart environments and extensively reviews a variety of recent literature reports on peak load shaving and demand response. Significant benefits and challenges of these energy management strategies were identified through the literature survey. Finally, a critical discussion summarizing trends and opportunities is given as a thread for future research.

scholarly journals Opportunities and Challenges in Studies of Host-Pathogen Interactions and Management of Verticillium dahliae in Tomatoes

Plants ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1622
Author(s):  
Bhupendra Acharya ◽  
Thomas W. Ingram ◽  
YeonYee Oh ◽  
Tika B. Adhikari ◽  
Ralph A. Dean ◽  
...  
Keyword(s):  
Verticillium Wilt ◽  
Verticillium Dahliae ◽  
Current Knowledge ◽  
Management Strategies ◽  
Future Research ◽  
Broad Host Range ◽  
Pathogen Virulence ◽  
Solanum Lycopersicum L ◽  
Worldwide Distribution ◽  
Management Approaches

Tomatoes (Solanum lycopersicum L.) are a valuable horticultural crop that are grown and consumed worldwide. Optimal production is hindered by several factors, among which Verticillium dahliae, the cause of Verticillium wilt, is considered a major biological constraint in temperate production regions. V. dahliae is difficult to mitigate because it is a vascular pathogen, has a broad host range and worldwide distribution, and can persist in soil for years. Understanding pathogen virulence and genetic diversity, host resistance, and plant-pathogen interactions could ultimately inform the development of integrated strategies to manage the disease. In recent years, considerable research has focused on providing new insights into these processes, as well as the development and integration of environment-friendly management approaches. Here, we discuss the current knowledge on the race and population structure of V. dahliae, including pathogenicity factors, host genes, proteins, enzymes involved in defense, and the emergent management strategies and future research directions for managing Verticillium wilt in tomatoes.

scholarly journals Grain Legumes and Fear of Salt Stress: Focus on Mechanisms and Management Strategies

2019 ◽  
Vol 20 (4) ◽  
pp. 799 ◽  
Author(s):  
Muhammad Nadeem ◽  
Jiajia Li ◽  
Muhammad Yahya ◽  
Minghua Wang ◽  
Asif Ali ◽  
...  
Keyword(s):  
Salt Stress ◽  
Molecular Mechanisms ◽  
Management Strategies ◽  
High Sensitivity ◽  
Grain Legumes ◽  
Irrigated Agriculture ◽  
Mineral Contents ◽  
Tolerance Strategy ◽  
Legume Crops ◽  
Management Approaches

Salinity is an ever-present major constraint and a major threat to legume crops, particularly in areas with irrigated agriculture. Legumes demonstrate high sensitivity, especially during vegetative and reproductive phases. This review gives an overview of legumes sensitivity to salt stress (SS) and mechanisms to cope with salinity stress under unfavorable conditions. It also focuses on the promising management approaches, i.e., agronomic practices, breeding approaches, and genome editing techniques to improve performance of legumes under SS. Now, the onus is on researchers to comprehend the plants physiological and molecular mechanisms, in addition to various responses as part of their stress tolerance strategy. Due to their ability to fix biological nitrogen, high protein contents, dietary fiber, and essential mineral contents, legumes have become a fascinating group of plants. There is an immense need to develop SS tolerant legume varieties to meet growing demand of protein worldwide. This review covering crucial areas ranging from effects, mechanisms, and management strategies, may elucidate further the ways to develop SS-tolerant varieties and to produce legume crops in unfavorable environments.

Improving Crop Production on Salt-affected Soils: by Breeding or Management?

1995 ◽  
Vol 31 (4) ◽  
pp. 395-408 ◽  
Author(s):  
R. A. Richards
Keyword(s):  
Land Use ◽  
Soil Salinity ◽  
Crop Production ◽  
Management Practices ◽  
Crop Management ◽  
Crop Productivity ◽  
Or Management ◽  
Perennial Vegetation ◽  
Salt Affected Soils ◽  
Irrigation Practices

SUMMARYThe area of salt-affected land is increasing because of irrigation practices and changed land use. Breeding crops that tolerate soil salinity and yield well in salt-affected soils, and employing crop management practices to counter salinity, have been proposed to maintain crop productivity. Here, it is argued that neither breeding nor management will adequately counter the effects of salinity. Although both offer the potential to maintain yields for a brief period, it is inevitable that salinity will continue to increase and crop productivity will decline. Only the establishment of a perennial vegetation that will maintain evapotranspiration at high levels all year round on both salt-affected land and recharge areas will halt the increase in salinization.Mejorar la producción en los suelos afectados por la sal

Meloidogyne enterolobii, a threat to crop production with particular reference to sub-Saharan Africa: an extensive, critical and updated review

Nematology ◽  
2021 ◽  
pp. 1-39
Author(s):  
Raymond Lesley Collett ◽  
Mariette Marais ◽  
Mieke Daneel ◽  
Milad Rashidifard ◽  
Hendrika Fourie
Keyword(s):  
Crop Production ◽  
Management Strategies ◽  
Molecular Techniques ◽  
Sub Saharan Africa ◽  
Crop Damage ◽  
Future Research ◽  
Root Knot Nematode ◽  
Meloidogyne Enterolobii ◽  
Nematode Parasitism ◽  
Sub Saharan

Summary Crop damage inflicted by Meloidogyne enterolobii justifies an updated literature review focusing on recent discoveries about its identification, biology and management. Since its description in 1983, M. enterolobii has become a pest of great concern, particularly due to its virulence, which renders controlling this nematode pest a challenge. The global distribution of M. enteroblii is summarised, with emphasis placed on limited research done for the species in sub-Saharan Africa where food production and security is threatened by root-knot nematode parasitism. Novel advances in methods used to detect M. enterolobii are touched upon, especially the improvement in advanced molecular techniques that complements shortcomings in morphology and morphometic approaches. Despite these exciting developments, the employment of effective management strategies to combat the species remains problematic. Future research on various aspects of M. enterolobii is crucial, with focus to be placed on the use of available resources to contain damage caused by this species.

scholarly journals Buckeye rot of tomato in India: Present status, challenges, and future research perspectives

Plant Disease ◽  
2021 ◽  
Author(s):  
Satish Kumar Gupta ◽  
Monika Sharma ◽  
Santanu Mukherjee
Keyword(s):  
Crop Production ◽  
Management Practice ◽  
Management Strategies ◽  
Threshold Level ◽  
Phytophthora Nicotianae ◽  
Fruit Rot ◽  
Future Research ◽  
High Humidity ◽  
Viral Origin ◽  
Research Perspectives

Tomato in India is commonly exposed to various diseases of fungal, bacterial, and viral origin, resulting in substantial yield losses (≥50%). Buckeye rot (caused by Phytophthora nicotianae var. parasitica) is among the major constraints in the successful cultivation of tomato crops in various parts of the world including the Solan district of Himachal Pradesh state, India. The fruit rot becomes more devastating under high humidity and wet soils. Symptoms generally appear on green fruit as alternate dark and light brown concentric rings. The genome size of P. nicotianae var. parasitica is 82 Mb with >23,000 predicted genes. High humidity (> 60%) and optimal temperatures (20-25 ºC), along with rainfall (≥ 10 mm), help to disperse the pathogen as the inoculum reaches the fruit through splashing rains. Sporangia germinate indirectly by producing zoospores at 20-25o C, or directly via germ tubes at >25ºC. In the absence of suitable resistant varieties, no single management practice is sufficient to keep the disease below the economic threshold level; therefore, integration of cultural and chemical methods is preferable. This paper aims to focus on the etiology, and management challenges of buckeye rot. We recommend innovative disease management strategies like identification and deployment of resistant cultivars as well as spraying of synthetic chemical fungicides, biocontrol agents, and use of abiotic chemicals that induce resistance, for developing sustainable crop production practices.

scholarly journals SCREENING OF SALT TOLERANT RHIZOBIA FROM GROUNDNUT IN CUDDALORE DISTRICT OF TAMIL NADU, INDIA

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
N. Pandeeswari ◽  
K. Sivakumar
Keyword(s):  
Salt Tolerance ◽  
Land Surface ◽  
Tamil Nadu ◽  
Crop Production ◽  
Climatic Conditions ◽  
Irrigated Agriculture ◽  
Salt Tolerant ◽  
Salinity Response ◽  
The World ◽  
Salt Affected Soils

Salinity seriously constrains crop yield in irrigated agriculture throughout the world. Also, salinity is a serious threat to agriculture in arid and semi arid regions. Nearly 10 % of the world’s land surface can be classified as endangered by salinity. Salinity in the soil and irrigation water is an environmental problem and a major constraint for crop production. Currently, 20 % of the world’s cultivated land is affected by salinity, which results in the loss of 50 % of agricultural yield. At present, there are nearly 954 million hectares of saline soils on the earth’s surface. All these salt affected soils are distributed throughout the world. The salinity response of legumes in general varies greatly depending on factors like climatic conditions, soil properties, salt tolerance and the stages of crop growth. Successful cultivation of legumes can be achieved by the selection and/or development of a salt-tolerant legume Rhizobium combination although high salinities are known to affect rhizobial activities. The aim of present study is the effect of strains of salt tolerant Rhizobia on IAA, EPS, nodule ARA activity, Nitrogen content, leghemoglobin content, siderophore production, IAR and salt concentration of Groundnut on coastal area of Cuddalore District of Tamil Nadu. The GNR CD-4 is the effect salt tolerance strain compared to other strains.

scholarly journals Weed Interference and Management in Cucumber (Cucumis sativus L.)

2021 ◽  
Author(s):  
Olumide Samuel Daramola
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Crop Production ◽  
Environmental Conservation ◽  
Integrated Weed Management ◽  
Future Research ◽  
Cucumis Sativus L ◽  
Weed Interference ◽  
Management Approaches ◽  
Hand Weeding

Weed interference is a major problem in cucumber farming, leading to 45–95% yield reduction. Weed control practices employed to avoid such losses are predominantly hand weeding and herbicides application. All the weed control methods used in cucumber farming have their own limitations. Hand weeding is tedious, time consuming and associated with high labor demands. Only few herbicides are registered for weed control in cucumber, and these herbicides does not provide season-long weed control when used alone, neither can they control the entire weed spectrum with diverse physiology, morphology and time of emergence. Therefore, to optimize yield, financial and environmental costs and benefits, integrated weed management approaches are advocated. A good tillage operation, use of competitive cultivars, appropriate plant population and row spacing, application of pre and post emergence herbicides are important in reducing weed density. The combination of these approaches provides effective weed control, and helps in environmental conservation. The world is now moving toward precision weed management techniques which involve remote sensing, modelling and use of robotics to control weeds. These technologies are the future of weed management in crop production and have a substantial role to play in modern cucumber production. Right selection of one or more of these techniques with reference to environmental, socioeconomic, and geographic conditions will provide effective weed control in cucumber. Future research should therefore be focused on delivering information for the implementation of these approaches.

scholarly journals Nonconventional Weed Management Strategies for Modern Agriculture

Weed Science ◽  
2015 ◽  
Vol 63 (4) ◽  
pp. 723-747 ◽  
Author(s):  
Ali A. Bajwa ◽  
Gulshan Mahajan ◽  
Bhagirath S. Chauhan
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Crop Production ◽  
Control Measure ◽  
Management Strategies ◽  
Future Research ◽  
Allelopathic Potential ◽  
Modern Agriculture ◽  
Control Options

Weeds are a significant problem in crop production and their management in modern agriculture is crucial to avoid yield losses and ensure food security. Intensive agricultural practices, changing climate, and natural disasters affect weed dynamics and that requires a change in weed management protocols. The existing manual control options are no longer viable because of labor shortages; chemical control options are limited by ecodegradation, health hazards, and development of herbicide resistance in weeds. We are therefore reviewing some potential nonconventional weed management strategies for modern agriculture that are viable, feasible, and efficient. Improvement in tillage regimes has long been identified as an impressive weed-control measure. Harvest weed seed control and seed predation have been shown as potential tools for reducing weed emergence and seed bank reserves. Development in the field of allelopathy for weed management has led to new techniques for weed control. The remarkable role of biotechnological advancements in developing herbicide-resistant crops, bioherbicides, and harnessing the allelopathic potential of crops is also worth mentioning in a modern weed management program. Thermal weed management has also been observed as a useful technique, especially under conservation agriculture systems. Last, precision weed management has been elaborated with sufficient details. The role of remote sensing, modeling, and robotics as an integral part of precision weed management has been highlighted in a realistic manner. All these strategies are viable for today's agriculture; however, site-specific selection and the use of right combinations will be the key to success. No single strategy is perfect, and therefore an integrated approach may provide better results. Future research is needed to explore the potential of these strategies and to optimize them on technological and cultural bases. The adoption of such methods may improve the efficiency of cropping systems under sustainable and conservation practices.

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