Subjects -> ENGINEERING (Total: 2791 journals)
    - CHEMICAL ENGINEERING (248 journals)
    - CIVIL ENGINEERING (242 journals)
    - ELECTRICAL ENGINEERING (176 journals)
    - ENGINEERING (1402 journals)
    - ENGINEERING MECHANICS AND MATERIALS (452 journals)
    - HYDRAULIC ENGINEERING (56 journals)
    - INDUSTRIAL ENGINEERING (100 journals)
    - MECHANICAL ENGINEERING (115 journals)

ENGINEERING (1402 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 1205 Journals sorted alphabetically
3 Biotech     Open Access   (Followers: 2)
3D Research     Hybrid Journal   (Followers: 17)
AAPG Bulletin     Hybrid Journal   (Followers: 9)
Abstract and Applied Analysis     Open Access   (Followers: 1)
Aceh International Journal of Science and Technology     Open Access   (Followers: 3)
ACS Nano     Hybrid Journal   (Followers: 188)
Acta Geotechnica     Hybrid Journal   (Followers: 6)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 8)
Acta Nova     Open Access  
Acta Polytechnica : Journal of Advanced Engineering     Open Access  
Acta Universitatis Cibiniensis. Technical Series     Open Access   (Followers: 1)
Active and Passive Electronic Components     Open Access   (Followers: 5)
Adaptive Behavior     Hybrid Journal   (Followers: 8)
Additive Manufacturing Letters     Open Access   (Followers: 5)
Adsorption     Hybrid Journal   (Followers: 4)
Advanced Energy and Sustainability Research     Open Access   (Followers: 4)
Advanced Engineering Forum     Full-text available via subscription   (Followers: 10)
Advanced Engineering Research     Open Access  
Advanced Journal of Graduate Research     Open Access   (Followers: 1)
Advanced Quantum Technologies     Hybrid Journal   (Followers: 1)
Advanced Science     Open Access   (Followers: 11)
Advanced Science Focus     Free   (Followers: 5)
Advanced Science Letters     Full-text available via subscription   (Followers: 8)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 3)
Advanced Synthesis & Catalysis     Hybrid Journal   (Followers: 19)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 2)
Advances in Applied Energy     Open Access   (Followers: 4)
Advances in Catalysis     Full-text available via subscription   (Followers: 7)
Advances in Complex Systems     Hybrid Journal   (Followers: 10)
Advances in Engineering Software     Hybrid Journal   (Followers: 25)
Advances in Fuzzy Systems     Open Access   (Followers: 5)
Advances in Geosciences (ADGEO)     Open Access   (Followers: 19)
Advances in Heat Transfer     Full-text available via subscription   (Followers: 27)
Advances in Natural Sciences : Nanoscience and Nanotechnology     Open Access   (Followers: 28)
Advances in Operations Research     Open Access   (Followers: 13)
Advances in OptoElectronics     Open Access   (Followers: 6)
Advances in Physics Theories and Applications     Open Access   (Followers: 12)
Advances in Polymer Science     Hybrid Journal   (Followers: 50)
Advances in Remote Sensing     Open Access   (Followers: 58)
Advances in Science and Research (ASR)     Open Access   (Followers: 8)
Aerobiologia     Hybrid Journal   (Followers: 2)
Aerospace Systems     Hybrid Journal   (Followers: 6)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 7)
AIChE Journal     Hybrid Journal   (Followers: 31)
Ain Shams Engineering Journal     Open Access   (Followers: 1)
Al-Nahrain Journal for Engineering Sciences     Open Access  
Al-Qadisiya Journal for Engineering Sciences     Open Access  
AL-Rafdain Engineering Journal     Open Access  
Alexandria Engineering Journal     Open Access   (Followers: 1)
AMB Express     Open Access   (Followers: 1)
American Journal of Applied Sciences     Open Access   (Followers: 21)
American Journal of Engineering and Applied Sciences     Open Access   (Followers: 7)
American Journal of Engineering Education     Open Access   (Followers: 13)
American Journal of Environmental Engineering     Open Access   (Followers: 6)
American Journal of Industrial and Business Management     Open Access   (Followers: 23)
Annals of Civil and Environmental Engineering     Open Access   (Followers: 1)
Annals of Combinatorics     Hybrid Journal   (Followers: 3)
Annals of Pure and Applied Logic     Open Access   (Followers: 4)
Annals of Regional Science     Hybrid Journal   (Followers: 7)
Annals of Science     Hybrid Journal   (Followers: 9)
Annual Journal of Technical University of Varna     Open Access  
Antarctic Science     Hybrid Journal   (Followers: 1)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 3)
Applicable Analysis: An International Journal     Hybrid Journal   (Followers: 1)
Applications in Energy and Combustion Science     Open Access   (Followers: 2)
Applications in Engineering Science     Open Access  
Applied Catalysis A: General     Hybrid Journal   (Followers: 7)
Applied Catalysis B: Environmental     Hybrid Journal   (Followers: 9)
Applied Clay Science     Hybrid Journal   (Followers: 6)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 15)
Applied Energy     Partially Free   (Followers: 25)
Applied Engineering Letters     Open Access  
Applied Magnetic Resonance     Hybrid Journal   (Followers: 3)
Applied Nanoscience     Open Access   (Followers: 7)
Applied Network Science     Open Access   (Followers: 2)
Applied Numerical Mathematics     Hybrid Journal   (Followers: 4)
Applied Physics Research     Open Access   (Followers: 5)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 5)
Arab Journal of Basic and Applied Sciences     Open Access  
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 1)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 5)
Archives of Foundry Engineering     Open Access  
Archives of Thermodynamics     Open Access   (Followers: 10)
Arctic     Open Access  
Arid Zone Journal of Engineering, Technology and Environment     Open Access  
Arkiv för Matematik     Hybrid Journal  
ArtefaCToS : Revista de estudios sobre la ciencia y la tecnología     Open Access  
Asian Journal of Applied Science and Engineering     Open Access  
Asian Journal of Applied Sciences     Open Access   (Followers: 2)
Asian Journal of Biotechnology     Open Access   (Followers: 8)
Asian Journal of Control     Hybrid Journal  
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 5)
Assembly Automation     Hybrid Journal   (Followers: 2)
ATZagenda     Hybrid Journal  
ATZextra worldwide     Hybrid Journal  
AURUM : Mühendislik Sistemleri ve Mimarlık Dergisi = Aurum Journal of Engineering Systems and Architecture     Open Access   (Followers: 1)
Australasian Journal of Engineering Education     Hybrid Journal   (Followers: 3)
Australasian Physical & Engineering Sciences in Medicine     Hybrid Journal   (Followers: 1)
Australian Journal of Multi-Disciplinary Engineering     Hybrid Journal  
Autocracy : Jurnal Otomasi, Kendali, dan Aplikasi Industri     Open Access  
Automotive and Engine Technology     Hybrid Journal  
Automotive Experiences     Open Access  
Automotive Innovation     Hybrid Journal  
Avances en Ciencias e Ingenierías     Open Access  
Avances: Investigación en Ingeniería     Open Access  
Balkan Region Conference on Engineering and Business Education     Open Access   (Followers: 2)
Bangladesh Journal of Scientific and Industrial Research     Open Access  
Basin Research     Hybrid Journal   (Followers: 6)
Batteries & Supercaps     Hybrid Journal   (Followers: 5)
Bautechnik     Hybrid Journal   (Followers: 1)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 27)
Beni-Suef University Journal of Basic and Applied Sciences     Open Access  
Beyond : Undergraduate Research Journal     Open Access  
Bhakti Persada : Jurnal Aplikasi IPTEKS     Open Access  
Bharatiya Vaigyanik evam Audyogik Anusandhan Patrika (BVAAP)     Open Access  
Bilge International Journal of Science and Technology Research     Open Access   (Followers: 1)
Biointerphases     Open Access   (Followers: 1)
Biomaterials Science     Hybrid Journal   (Followers: 11)
Biomedical Engineering     Hybrid Journal   (Followers: 11)
Biomedical Engineering and Computational Biology     Open Access   (Followers: 10)
Biomedical Engineering Letters     Hybrid Journal   (Followers: 3)
Biomedical Engineering: Applications, Basis and Communications     Hybrid Journal   (Followers: 4)
Biomedical Microdevices     Hybrid Journal   (Followers: 8)
Biomedical Science and Engineering     Open Access   (Followers: 4)
Biomicrofluidics     Open Access   (Followers: 7)
Biotechnology Progress     Hybrid Journal   (Followers: 42)
Black Sea Journal of Engineering and Science     Open Access  
Botswana Journal of Technology     Full-text available via subscription   (Followers: 1)
Boundary Value Problems     Open Access  
Bulletin of Canadian Petroleum Geology     Full-text available via subscription   (Followers: 12)
Bulletin of Engineering Geology and the Environment     Hybrid Journal   (Followers: 15)
Bulletin of the Crimean Astrophysical Observatory     Hybrid Journal  
Cahiers Droit, Sciences & Technologies     Open Access   (Followers: 1)
Calphad     Hybrid Journal  
Canadian Geotechnical Journal     Hybrid Journal   (Followers: 28)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 51)
Carbon Resources Conversion     Open Access   (Followers: 2)
Carpathian Journal of Electronic and Computer Engineering     Open Access  
Case Studies in Thermal Engineering     Open Access   (Followers: 9)
Catalysis Communications     Hybrid Journal   (Followers: 7)
Catalysis Letters     Hybrid Journal   (Followers: 3)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 9)
Catalysis Science and Technology     Hybrid Journal   (Followers: 9)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 4)
Catalysis Today     Hybrid Journal   (Followers: 4)
CEAS Space Journal     Hybrid Journal   (Followers: 6)
Cell Reports Physical Science     Open Access  
Cellular and Molecular Neurobiology     Hybrid Journal   (Followers: 2)
CFD Letters     Open Access   (Followers: 7)
Chaos : An Interdisciplinary Journal of Nonlinear Science     Hybrid Journal   (Followers: 3)
Chaos, Solitons & Fractals     Hybrid Journal   (Followers: 1)
Chaos, Solitons & Fractals : X     Open Access   (Followers: 1)
Chinese Journal of Catalysis     Full-text available via subscription   (Followers: 2)
Chinese Journal of Engineering     Open Access   (Followers: 1)
Chinese Journal of Population, Resources and Environment     Open Access  
Chinese Science Bulletin     Open Access  
Ciencia e Ingenieria Neogranadina     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencia y Tecnología     Open Access  
Ciencias Holguin     Open Access   (Followers: 1)
CienciaUAT     Open Access  
Cientifica     Open Access  
CIRP Annals - Manufacturing Technology     Hybrid Journal   (Followers: 10)
CIRP Journal of Manufacturing Science and Technology     Hybrid Journal   (Followers: 12)
City, Culture and Society     Hybrid Journal   (Followers: 23)
Clay Minerals     Hybrid Journal   (Followers: 7)
Cleaner Engineering and Technology     Open Access   (Followers: 3)
Cleaner Environmental Systems     Open Access   (Followers: 3)
Coastal Engineering     Hybrid Journal   (Followers: 15)
Coastal Engineering Journal     Hybrid Journal   (Followers: 7)
Coastal Engineering Proceedings : Proceedings of the International Conference on Coastal Engineering     Open Access   (Followers: 1)
Coastal Management     Hybrid Journal   (Followers: 29)
Cogent Engineering     Open Access   (Followers: 1)
Cognitive Computation     Hybrid Journal   (Followers: 2)
Color Research & Application     Hybrid Journal   (Followers: 1)
COMBINATORICA     Hybrid Journal  
Combustion Theory and Modelling     Hybrid Journal   (Followers: 18)
Combustion, Explosion, and Shock Waves     Hybrid Journal   (Followers: 21)
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Communications in Numerical Methods in Engineering     Hybrid Journal   (Followers: 2)
Components, Packaging and Manufacturing Technology, IEEE Transactions on     Hybrid Journal   (Followers: 27)
Composite Interfaces     Hybrid Journal   (Followers: 6)
Composite Structures     Hybrid Journal   (Followers: 244)
Composites Part A : Applied Science and Manufacturing     Hybrid Journal   (Followers: 177)
Composites Part B : Engineering     Hybrid Journal   (Followers: 221)
Composites Part C : Open Access     Open Access  
Composites Science and Technology     Hybrid Journal   (Followers: 149)
Comptes Rendus : Mécanique     Open Access   (Followers: 2)
Computational Geosciences     Hybrid Journal   (Followers: 17)
Computational Optimization and Applications     Hybrid Journal   (Followers: 9)
Computer Applications in Engineering Education     Hybrid Journal   (Followers: 6)
Computer Science and Engineering     Open Access   (Followers: 15)
Computers & Geosciences     Hybrid Journal   (Followers: 29)
Computers & Mathematics with Applications     Full-text available via subscription   (Followers: 8)
Computers and Electronics in Agriculture     Hybrid Journal   (Followers: 7)
Computers and Geotechnics     Hybrid Journal   (Followers: 11)
Computing and Visualization in Science     Hybrid Journal   (Followers: 6)
Computing in Science & Engineering     Full-text available via subscription   (Followers: 31)
Conciencia Tecnologica     Open Access  
Concurrent Engineering     Hybrid Journal   (Followers: 3)

        1 2 3 4 5 6 7 8 | Last

Similar Journals
Journal Cover
CFD Letters
Number of Followers: 7  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2180-1363
Published by ISSR Journals Homepage  [3 journals]
  • Influences of Host Plants and Shade on the Outbreak of Analeptes
           Trifasciata F. On Cashew Plantations in the Center-North of Côte
           d'Ivoire

    • Authors: Siela Kone, Nygble Angèle Sika-Piba, Mamadou Dagnogo, Kouassi Allou
      Pages: 4437 - 4547
      Abstract: Cashew cultivation in certain areas of the Ivory Coast is facing significant damage from the double chisel of cashew trees (Analeptes trifasciata). This study determined the influence of host plants and leaf shade on insect outbreaks in plantations. In each of the 4 plantations (Méhankaha, Yakoukaha, Kéminkaha and Konékaha), two paths following the diagonals of the plots were traced using machetes up to 100 m in the bush surrounding the plots. All the trees, shrubs and plant suckers cut from these 5 m wide lines were prospected from the trunk (stem) to the leaves, passing through the branches and twigs. Then in each of these 4 plantations, it was a matter of evaluating the average number of individuals of the insect in dead branches on the ground under shade, in dead branches on the ground in the sun and in dead branches hanging in the trees. Branches (under shade and in the sun). This study showed that adults of A. trifasciata feed in addition to cashew trees, various host plants. Host plants attacked by the insect are Spondias monbin (Anacardiaceae), Terminalia macroptera (Combretaceae), Ficus capensis (Moraceae), Mangifera indica (Anacardiaceae), Sterculia tragacantha (Sterculiaceae), and Ceiba pentandra (Bombacaceae). Beyond food intake, only host plants such as Spondias monbin (Anacardiaceae), Terminalia macroptera (Combretaceae) and Ceiba pentandra (Bombacaceae) have been branched by insects. The presence of these host plants in the vicinity of cashew plots would therefore promote the maintenance and proliferation of the insect in the plantations. In addition to the host plants, the study showed that maintaining extensive shade in the plantations due to a high density of the plantations favored a high outbreak of the larval populations of A. trifasciata in cut branches. On the other hand, significant lighting of the plantations favoring the penetration of solar rays would significantly reduce the number of larval individuals per dead branch
      PubDate: 2022-01-10
      Issue No: Vol. 11, No. 01 (2022)
       
  • Growth and Flower Production as Influenced by Pinching in African
           marigold: A Review

    • Authors: Shalini Badge, G.B. Ganvir
      Pages: 4527 - 4536
      Abstract: Flowers are symbolize the most sensitive, delicate and loving feelings eloquently what our words fail to express. It also symbolizes the quintessence of human spirit; it adorns the surface of earth with a splendid array of colours – soft, mutated and dazzling, filling the whole atmosphere with its delicate fragrance. Flowers are grown and admired by human beings wherever he lives. A study was carried out to review on effect of pinching in marigold. The experiments consist of treatments like no pinching, single pinching after 15,22,28,30 and 45 days after transplanting. The results showed that maximum plant spread, number of primary branches diameter of stem, diameter of flower, weight of single flower, flower yield per plant and per ha were found superior in pinching treatment. However, pinching treatment delay the flowering so it best for avoid the glut in the market. From the study, plant pinched between 30 days after transplanting were found best for better growth, flowering and yield of marigold.
      PubDate: 2022-01-10
      Issue No: Vol. 11, No. 01 (2022)
       
  • An Experimental Studies on Performance of Various Onion Genotypes for
           Yield Behavior, Diseases, Insect Attack and Storage Losses

    • Authors: Dr. Richa Pyasi
      Pages: 4548 - 4553
      Abstract: The present investigation was carreid out during kharif season 2012-13 at the Horticulture Complex, Department of Horticulture, College of Agriculture, JNKVV, Jabalpur (M.P.). The experimental material for the present investigation was comprised of 33 genotypes of onion. These genotypes were sown in randomised complete Block design with three replication to estimate the yield, diesease & insect and storage losses. Genotypes BSKO-1256 performed best in terms of yield and gave marketable yield of 296.90 q/ha followed by genotype ASKO-1231, 291.90 q/ha and genotype CSKO-1266, 230.50 q/ha. Genotype ASKO-1213 was minimum affected by incidence of stemphyllium blight 8.68% at 60 DAT whereas genotype BSKO-1231 had shown lowest thrips count per plant 12.00 at 60 DAT. So these genotypes can be further exploited in selection programmes of disease & insect resistance
      PubDate: 2022-01-10
      Issue No: Vol. 11, No. 01 (2022)
       
  • Defoliators Infestation of Mulberry Plant (Morus Alba L) and Its Damages
           and Management: A Review

    • Authors: Jyoti Prasad Baruah, Jyotismita Saikia
      Pages: 4554 - 4560
      Abstract: Sericulture is an agro-based industry and as well as it is one of the important branches of agriculture entomology. This industry produces four types of silk such as mulberry, muga, eri and tassar. Among these mulberry silk having great demand in the world agriculture market. This mulberry silk is produced by the mulberry silkworm, Bombyx mori (Order: Lepidoptera & family: Bombycidae). Mulberry silkworm (Bombyx mori) feeds only the mulberry (Morus alba L) plant. During the cultivation of mulberry silkworm (Bombyx mori) host plants play a very important role for complete successful rearing. But various insect pests infestation the host plant very badly. Among these, defoliators are the major insect pest for the mulberry plant. They affect the various part of the plant such as the leaf, bud, stem, etc. Infested plants stop the growth and decreased leaf production. As well as affected leaves are not suitable for silkworm bodies. This review mainly focuses on defoliators (Order: Lepidoptera, Orthoptera, Coleoptera) of the mulberry plant, their damages, and management.
      PubDate: 2022-01-10
      Issue No: Vol. 11, No. 01 (2022)
       
  • Male Sterility in Vegetable Crop: A Mini Review

    • Authors: Shubham Singh, Abhilash Singh
      Pages: 4561 - 4570
      Abstract: Male sterility is a cost-effective and efficient method of facilitating the development of hybrid seeds in a variety of vegetable crops. The development of new genomic tools, molecular markers, and sequencing technology has aided in the mapping and introduction of new male sterility in various vegetable backgrounds. For the development of cytoplasmic male sterility (CMS) and genic male sterility (GMS), male sterility is produced by interactions between mitochondrial genes and nuclear genes, or by nuclear genes alone. CMS and GMS facilitate hybrid seed production in several vegetable crops. In CMS, layers of interaction between mitochondrial and nuclear genes control its male specificity, occurrence and restoration of fertility. Environment-sensitive GMS (EGMS) mutants are controlled by non-coding RNAs and can revert to fertility under different growth conditions, making them useful breeding materials in the hybrid seed industry. Despite the fact that a great deal of study has been done, we still know very little about the biochemical and molecular basis of male sterility system inheritance in many vegetable crops. The genetical, biochemical, and molecular underpinnings of male sterility expression in several vegetable crops, as well as generic models of male sterility and fertility restoration, have been described, and the evolutionary importance of these reproductive systems examined
      PubDate: 2022-01-10
      Issue No: Vol. 11, No. 01 (2022)
       
  • Cartographic Supply in Evaluation of Quality and Quantity of Land

    • Authors: Muhabbat B. Nurmanova
      Pages: 4571 - 4575
      Abstract: This article summarizes the estimated value of our irrigated lands that are considered productive on the basis of quality of agricultural lands in our country Uzbekistan. The growing population of the republic from year to year increases their demand for food, as well as a constant increase in living degrees
      PubDate: 2022-01-10
      Issue No: Vol. 11, No. 01 (2022)
       
  • A Success Story of Biogas Bottling Plant at DFRS, Bhilwara: Providing
           Solution to Agricultural and Kitchen Waste Managemen

    • Authors: Dr. Diksha Shrivastva, Dr. Deepak Sharma, Er. Kapil Samar, Dr. A. Kothari
      Pages: 4576 - 4586
      Abstract: India, where majority of population lives in rural areas, faces problem of environmental pollution, food security, post-harvest losses, waste disposal and energy availability. The rural energy needs can be fulfilled through application of locally available waste management technologies. Agrowaste and kitchen waste are the two most viable options for energy generation in rural areas that can not only enhance the standard of living but also help the rural areas to be self-sustainable in energy and economic terms. This research paper presents biomethanation or biogas technology as one of the economic and feasible technology for converting rural agricultural and kitchen waste to clean energy in addition to environmental benefits. It also explains the techno-economic feasibility of biomethanation for energy generationfrom agro and kitchen waste using a case study of RKVY project of 120cubic meter (60cum × 2no.) biogas plant decomposing 3 tons of agricultural and kitchen waste at DFRS, Bhilwara (Rajasthan). The research station is using the biogas either to produce daily approximately 50 kg Bio-CNG, which is used for running CNG- based vehicles at the station or generating 80 units of electricity. Along with biogas; daily 700-800 kg bio- manure worth of Rs. 3 lakhs per annum is also produced. A screw press dewatering system for slurry has also been installed, giving bio- manure with 30% moisture content. This paper clearly depicts the technoeconomic benefits, assistance and subsidies given for the development of biogas technology
      PubDate: 2022-01-13
      Issue No: Vol. 11, No. 01 (2022)
       
  • Dynamic Global Vegetation Models (DGVMs) and its Applicability to Climate
           Simulations- A Review

    • Authors: Srinivasan; K, Bilyaminu, H
      Pages: 4587 - 4597
      Abstract: The terrestrial biosphere interacts with the atmosphere through exchanges of energy, water and momentum. On one hand, climate conditions determine the distributions and types of local vegetation and on the other the terrestrial vegetation tends to greatly influence the: (i) thermal structure of the atmosphere by changing the physical properties at the surface, such as albedo, Bowen ratio and roughness length, and (ii) chemical composition of the atmosphere via biogeochemical processes, such as photosynthesis, respiration, allocation and decomposition. Ultimately, these biophysical and biogeochemical processes of the terrestrial vegetation give substantial feedback to the climate. However, these processes and feedbacks are dependent on time and space (Myoung. et al., 2011). In this regard, understanding the underlying mechanisms of the response of vegetation to climate change and, in turn, the effects of vegetation on the climate (both past and present) at various temporal and spatial scales are crucial for predicting the effects of the future climate change on terrestrial ecosystems and global carbon cycles. Reliable simulations of these interactions are crucial for predicting the potential impacts of future climate change and anthropogenic intervention on terrestrial ecosystems
      PubDate: 2022-01-13
      Issue No: Vol. 11, No. 01 (2022)
       
  • The Impact of Integrated and Balanced Fertilization on the Productivity of
           Olive Crop and its Quality in New Land

    • Authors: Mahmoud M. Abd El-Fattah, Osama A. Nofal, Abdel Halim I. Rezk, Adel B. El-Nasharty, Faiza A. Mohamed, Hatem M. El-Sanosy
      Pages: 4598 - 4608
      Abstract: Olive is one of the agricultural incomes in Egypt. The total area of olive in old, new and republic lands ranged between (25, 173, 198) thousand feddans respectively as average for the period (2006-2019). Where the search values showed that the olive total area in old lands decreased to 3.37 thousand feddans and the exchange rate represents about 13.05%,  the reverse was true with olive total area in new and republic were increased to (14.74 , 11.37) thousand feddans respectively. Moreover, the results indicated that the annual average of olive fruit area in old, new and republic lands gained (22, 129, 150) thousand feddans respectively. In addition, the olive total area in old lands reached to 3.45 thousand feddans with exchange rate about 15.10%.  In contrary, olive fruit area in new and republic enhanced by about (12.86, 9.41) thousand feddans respectively. On the other side, the values showed that the annual average of olive total production in old, new and republic lands recorded (102, 557, 659) thousand tons respectively. Meanwhile, the olive total production in old lands decreased to 17.59 thousand tons with exchange rate about 16.62%, where, the olive total production in new and Republic lands reached (66.28 and 48.68 ) thousand tons respectively. From another point, the values presented that the annual average of olive productivity in old, new and republic lands showed to (4.58, 4.24, 4.31) ton /fed.Respectively. Furthermore, these values pointed to a relative stability of the productivity for both types of lands during the search period.  Concerning geographical distribution of olive fruit area in Egypt, the information of annual average in outside the valley amounted to 83.6 thousand feddans during the period (2006-2019) by represent about 64.90% from total republic mounted to 128.8 thousand feddans. In this connection, Matrouh Governorate occupied the first arrangement of olive fruit area followed by Noubaria sector represented by 25 and 24,8 thousand feddans respectively, at the outside the valley with representing an area of the total cultivated land of the Republic by 19.41 %, 19,25% respectively. However, the productivity average of both gained 79.2, 165.7 thousand tons with representing 14.2, 29.70 % from the total cultivated land of republic. As for applying Integrated and balanced fertilization program (IBF), the results showed that using the program led to increase olive yield over the normal farm fertilization (NFF).Where Picual cultivar achieved the maximum yield which amounted to 28.9 kg/tree, while amounted to 23 kg/tree with applying (NFF) program. Regarding olive oil percent, Picual cultivar recorded the maximum oil percent which represents about 20.7% with applying (IBF), however, with applying (NFF) the oil percent showed 17.6%. From another point, the correlation between leaf nutrient contents of olive and yield showed a positive correlation where (K) recorded the maximum with for all cases. Furthermore, a positive correlation between leaf nutrient contents of olive and oil percent  obtained  with N,Cu,Ca,P,Zn,Fe While, the negative correlation gained with N ,Mg,Mn.  As for chemical fertilizer units (nitrate, phosphate and potassium) which were used in production of olive in new lands, the results of production functions for units cleared that these fertilizer units were used well and achieved the maximum of productivity, according to drip irrigation system and Integrated Balanced Fertilization Program (IBF).Meanwhile, the search results showed that the revenue and net return from the four olive cultivars (Picual, Manzanello, Coratina, Egazy) increased with using Integrated Balanced Fertilization Program (IBF) and drip irrigation system compared to Normal Farm Fertilization (NFF), where the total revenue amounted to (9472, 8784, 7997, 6752) pound/fed. for the four olive cultivars respectively. Whereas, total revenue amounted to (7538, 7145, 6424, 5178) pound /fed. for the four cultivars respectively using (NFF). It is worth to observe that the net return amounted to (2850, 2162, 1375, 130) pound/fed. for the four olive cultivars respectively using (IBF) and drip irrigation system compared to (NFF) which amounted to (916, 523, -198,-1444) pound/fed. for the four olive cultivars (Picual, Manzanello, Coratina, Egazy) respectively
      PubDate: 2022-01-13
      Issue No: Vol. 11, No. 01 (2022)
       
  • Genetic Engineering Strategies for Improving Saccharification Efficiency
           of Lignocellulosic Biomass in Bioenergy Plants

    • Authors: Yogesh K. Ahlawat
      Pages: 4609 - 4620
      Abstract: The first-generation biofuels have limited capability to meet the growing transportation fuel demands of the burgeoning world population because food availability and food security are the prime concerns. Therefore, lignocellulosic biomass from plant cell walls is being explored as an alternate yet significant resource to produce second-generation biofuels. Current biofuel production technologies are largely dependent on using sugarcane and corn due to the ease in substrate handling and processing. However, commercial production of bioethanol from lignocellulosic biomass requires substantial improvements in plant feedstocks, pretreatment conditions, saccharification or sugar release processes and fermentation of released simple sugars. Plant biotechnology provides an effective means of developing targeted structural alterations in the lignocellulosic secondary cell walls of bioenergy plants for improved saccharification. This review provides a comprehensive and critical assessment of the published reports about genetic modifications of bioenergy plants toward reducing the secondary cell wall recalcitrance to enhance bioethanol production
      PubDate: 2022-01-10
      Issue No: Vol. 11, No. 01 (2022)
       
 
JournalTOCs
School of Mathematical and Computer Sciences
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