scholarly journals Integrated Management Approach to Citrus Fungal Diseases by Optimizing Cocoa-Based Agroforests Structural Characteristics

2021 ◽  
Author(s):  
Ndo Eunice Golda Danièle ◽  
Akoutou Mvondo Etienne
Keyword(s):  
Spatial Structure ◽  
Structural Characteristics ◽  
Integrated Management ◽  
Cropping System ◽  
Agroforestry System ◽  
Management Tool ◽  
Management Approach ◽  
Humid Forest ◽  
Citrus Diseases ◽  
Fruit Spot

The health and productivity of citrus are generally jeopardized by a host of diseases, for which the environmental conditions of the cropping system are critical drivers. Several studies conducted on various diseases of perennial crops have shown the involvement of the structural futures of the cocoa-based agroforestry system (CBAFS) in the spread of pathogens and the epidemics development. This chapter highlights the effect of the CBAFS’s structural characteristics on the intensity of three citrus diseases in the humid forest zones of Cameroon. The involvement of CBAFS structural characteristics in diseases regulation is demonstrated. In particular, the spatial structure of citrus in agroforests shows an effect on the spread of diseases. Moreover, distribution of citrus in the CBAFS, with minimum spacing of 12 m between citrus trees, limits the damage caused by Pseudocercospora leaf and fruit spot disease (PLFSD) and citrus diseases caused by Phytophthora (CDP). Dense shading helps to minimize the intensity of diseases such as CDP and PLFSD and Citrus scab disease. This work may make it possible to contribute to the development of an integrated management tool for citrus diseases in an associated crop context.

scholarly journals Weeds Hosting the Soybean Cyst Nematode (Heterodera glycines Ichinohe): Management Implications in Agroecological Systems

Agronomy ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 146
Author(s):  
Leonardo F. Rocha ◽  
Karla L. Gage ◽  
Mirian F. Pimentel ◽  
Jason P. Bond ◽  
Ahmad M. Fakhoury
Keyword(s):  
Weed Management ◽  
Soybean Cyst Nematode ◽  
Heterodera Glycines ◽  
Integrated Management ◽  
Cropping System ◽  
Cyst Nematode ◽  
Weed Species ◽  
Initial Inoculum ◽  
Herbicide Resistant ◽  
Sites Of Action

The soybean cyst nematode (SCN; Heterodera glycines Ichinohe) is a major soybean-yield-limiting soil-borne pathogen, especially in the Midwestern US. Weed management is recommended for SCN integrated management, since some weed species have been reported to be hosts for SCN. The increase in the occurrence of resistance to herbicides complicates weed management and may further direct ecological–evolutionary (eco–evo) feedbacks in plant–pathogen complexes, including interactions between host plants and SCN. In this review, we summarize weed species reported to be hosts of SCN in the US and outline potential weed–SCN management interactions. Plants from 23 families have been reported to host SCN, with Fabaceae including most host species. Out of 116 weeds hosts, 14 species have known herbicide-resistant biotypes to 8 herbicide sites of action. Factors influencing the ability of weeds to host SCN are environmental and edaphic conditions, SCN initial inoculum, weed population levels, and variations in susceptibility of weed biotypes to SCN within a population. The association of SCN on weeds with relatively little fitness cost incurred by the latter may decrease the competitive ability of the crop and increase weed reproduction when SCN is present, feeding back into the probability of selecting for herbicide-resistant weed biotypes. Therefore, proper management of weed hosts of SCN should be a focus of integrated pest management (IPM) strategies to prevent further eco–evo feedbacks in the cropping system.

Can an integrated management approach provide a basis for long-term prevention of weed dominance in Australian pasture systems?

Weed Research ◽  
2005 ◽  
Vol 45 (3) ◽  
pp. 175-192 ◽  
Author(s):  
R K HUWER ◽  
D T BRIESE ◽  
P M DOWLING ◽  
D R KEMP ◽  
W M LONSDALE ◽  
...  
Keyword(s):  
Integrated Management ◽  
Management Approach

scholarly journals Development of a management tool for reservoirs in Mediterranean environments based on uncertainty analysis

2012 ◽  
Vol 12 (5) ◽  
pp. 1789-1797 ◽  
Author(s):  
R. Gómez-Beas ◽  
A. Moñino ◽  
M. J. Polo
Keyword(s):  
Uncertainty Analysis ◽  
Water Cycle ◽  
Integrated Management ◽  
Management Tool ◽  
Short Term ◽  
Climate Fluctuations ◽  
The Social ◽  
Reservoir Watershed ◽  
Supply Capacity

Abstract. In compliance with the development of the Water Framework Directive, there is a need for an integrated management of water resources, which involves the elaboration of reservoir management models. These models should include the operational and technical aspects which allow us to forecast an optimal management in the short term, besides the factors that may affect the volume of water stored in the medium and long term. The climate fluctuations of the water cycle that affect the reservoir watershed should be considered, as well as the social and economic aspects of the area. This paper shows the development of a management model for Rules reservoir (southern Spain), through which the water supply is regulated based on set criteria, in a sustainable way with existing commitments downstream, with the supply capacity being well established depending on demand, and the probability of failure when the operating requirements are not fulfilled. The results obtained allowed us: to find out the reservoir response at different time scales, to introduce an uncertainty analysis and to demonstrate the potential of the methodology proposed here as a tool for decision making.

scholarly journals An Integrated Management Approach in a Higher Education Technology Support Unit

2013 ◽  
pp. 206-228
Author(s):  
Lesley G. Boyd ◽  
Jill W. Fresen
Keyword(s):  
Instructional Design ◽  
Project Management ◽  
Quality Management ◽  
Quality Management System ◽  
Integrated Management ◽  
Good Practice ◽  
Management Approach ◽  
Design Development ◽  
Support Unit ◽  
Instructional Design Process

This case study is located in the Department for Education Innovation (EI), a teaching and learning support unit at the University of Pretoria in South Africa. The initial problem was the need to apply project management and quality management principles to the services offered by the department to faculty members. The authors describe the implementation of a formal, online, process-based Quality Management System (QMS) designed to self evaluate, document, and improve the Instructional Design (ID) process that guides the development of educational technology solutions in EI. The project was completed in 2005 and was included in a CEN (European Committee for Standardization) Good Practice Guide for outstanding implementations of quality approaches in e-learning. The QMS provides a mechanism to support a consistent project management approach, and the case illustrates successful integration between three cycles: Project Management (PM), Quality Management (QM), and the ADDIE (Analysis, Design, Development, Implementation, and Evaluation) instructional design process.

Assessment of soil carbon storage and nutrient contents in some wetlands soils of the northeastern region of Bangladesh

2021 ◽  
Vol 30 (1) ◽  
pp. 115-124
Author(s):  
Arafat Rahman ◽  
MS Islam ◽  
Humyra B Murshed ◽  
MJ Uddin ◽  
ASM Mohiuddin ◽  
...  
Keyword(s):  
Soil Depth ◽  
Integrated Management ◽  
Management Approach ◽  
Wetland Soils ◽  
Soil Layers ◽  
Soil C ◽  
Nutrient Contents ◽  
C Storage ◽  
Soil C Storage ◽  
Land Types

An investigation was carried out in four designated wetlands to assess soil organic carbon (SOC) storage and evaluate soil nutrients of the northeastern Sylhet basin of Bangladesh. SOC storage was the highest in the Nikli wetland (4.1 Tg), followed by Hakaluki (4.0 Tg), Hail (2.8 Tg) and Balai wetland soils (2.6 Tg) at 100 cm depths. It is found that the total soil C storage across the medium low land (MLL) and low land (LL) sites covering the four wetlands of the Sylhet basin is about 13.5Tg. C storage across the MLL and LL sites at 100 cm depths was estimated about 5.1Tg and 8.4Tg respectively. It is found that SOC storage was higher in the low land sites in contrast to medium low land sites. The soil property varies depending on land types, soil depths and spatial distributions. Among the investigated wetland soils, Hakaluki wetland stored higher amount of SOC in the deeper soil layers whereas an inverse relationship between soil depth and SOC storage was noted for rest of the wetlands. It is apprehended that SOC storage thus gradually lessening in greater magnitude due to climate change and other anthropogenic reasons. An integrated management approach should be developed to restore the SOC sink. Dhaka Univ. J. Biol. Sci. 30(1): 115-124, 2021 (January)

Study of Poplar and Bamboo based Agroforestry System

2019 ◽  
Vol 26 (2) ◽  
pp. 67-70
Author(s):  
Kapil Joshi ◽  
◽  
Vrushali Gade ◽  
Ashwini Apet ◽  
◽  
...  
Keyword(s):  
Integrated Management ◽  
Agroforestry System ◽  
Environmental Conservation ◽  
Wood Products ◽  
Population Pressure ◽  
Natural Forests ◽  
Resource Base ◽  
The Sustainable Development ◽  
The People ◽  
Agro Forestry

Food insecurity and poverty have been affecting the livelihood of the rural poor since ages. It is posing a major challenge to the sustainable development of a developing country like India. In such countries, land and soil degradation has emerged as an offshoot of excessive population pressure over the limited resources. Agricultural production in the developing countries has seldom matched the needs of the people. Agro forestry has the potential to arrest land degradation and improve site productivity through interaction with trees, soil, crops and livestock. Agro forestry is also a potential option for improving rural livelihood and enhancing integrated management of the natural resource base. Agro forestry systems can play an important role in carbon mitigation programmes through carbon sequestration and can reduce the pressure on existing natural forests by providing fuel, fodder, timber and wood products to the farmers. The current interest in agro forestry in India has transformed the land-use system in terms of economic sustainability. This article briefly reviews about the concept of Poplar and Bamboo based agro forestry systems as adopted extensively by the farmers on a commercial and environmental conservation scale. These systems play a significant role to meet the economic, social and environmental concerns of the villagers.

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