scholarly journals Adaptation of Mediterranean Olive Groves to Climate Change through Sustainable Cultivation Practices

Climate ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 54 ◽  
Author(s):  
G. Michalopoulos ◽  
K. A. Kasapi ◽  
G. Koubouris ◽  
G. Psarras ◽  
G. Arampatzis ◽  
...  
Keyword(s):  
Management Practices ◽  
Organic Materials ◽  
Crop Management ◽  
Point Of View ◽  
Yield Increase ◽  
Biennial Bearing ◽  
Mediterranean Countries ◽  
Cultivation Practices ◽  
Olive Groves ◽  
Phosphorus And Potassium

Olive cultivation is considered as one of the most significant agricultural activities in Greece, from a financial, social, and ecological point of view. Intensive cultivation practices in combination with the Mediterranean climate, lead to depletion of soil organic matter, erosion, desertification, and degradation of water resources. This paper describes sustainable olive crop management practices that were comparatively applied in 120 olive groves in Greece for 5 years with the participation of three farmers groups. Organic materials recycled in the olive groves during the present study were valuable sources of carbon, nitrogen, phosphorus, and potassium. Carbon content was highest in pruning residue (53.8–54.2%) while all materials studied were considered rich in C ranging between 41.9–46.2% (compost) and 34.9–42.5% (three-phase olive mill waste-OMW). The highest content in nitrogen was detected in compost (2–2.45%) followed by pruning residue (0.93–0.99%) and OMW (0.03–0.1%). Compost was considered a good source of phosphorus (0.3–0.6%) followed by pruning residue (0.08–0.13%) and OMW (0.01–0.3%). Potassium was also considerable in the organic materials recycled ranging 0.5–1.5% in compost followed by pruning residue (0.5–0.7%) and OMW (0.3–1.1%). Adoption of modified pruning also had important contribution toward sustainable management of olive trees. Sustainable pruning resulted in a well-balanced ratio between vegetative growth and fruiting (balanced, every year, in order to eradicate biennial bearing). Significant fluctuation in olive yields was observed in the first years of the project while yields were gradually stabilised by applying sustainable crop management. In parallel, yield increase without additional inputs, lowers the carbon—environmental footprint of the product regarding several environmental impact categories. Results can be integrated in the national agricultural and environmental policy in Mediterranean countries toward the achievement of a circular economy.

Influence of Crop Management Practices on Nutrient Movement Below the Root Zone in Nebraska Soils

1976 ◽  
Vol 5 (3) ◽  
pp. 255-259 ◽  
Author(s):  
John Muir ◽  
J. S. Boyce ◽  
E. C. Seim ◽  
P. N. Mosher ◽  
E. J. Deibert ◽  
...  
Keyword(s):  
Management Practices ◽  
Root Zone ◽  
Crop Management

Increasing the Productivity and Profitability of Paddy through Front Line Demonstrations in Irrigated Agro Ecosystem of Kaymore Platue and Satpura Hills

2016 ◽  
Vol 3 (3) ◽  
Author(s):  
DHANANJAI SINGH ◽  
A.K. PATEL ◽  
S.K. SINGH ◽  
M.S. BAGHEL
Keyword(s):  
Management Practices ◽  
Agricultural Practices ◽  
Cost Ratio ◽  
Scientific Practices ◽  
Economic Returns ◽  
Front Line ◽  
Yield Increase ◽  
Benefit Cost Ratio ◽  
Sustainable Agricultural Practices ◽  
Improved Technology

Krishi Vigyan Kendra laid down Front Line Demonstration in the year 2010-11 and 2011-12 introducing new, high yielding and scented variety “Pusa Sugandha-3” and applying scientific practices in their cultivation. The FLDs were carried out in village “Dainiha” of Sidhi district in supervision of KVK scientist. The productivity and economic returns of paddy in improved technologies were calculated and compared with the corresponding farmer's practices (local check). Improved practices recorded higher yield as compared to farmer's practices. The improved technology recorded higher yield of 30.83 q/ha and 32.65 q/ha in the year 2010-11 and 2011-12, respectively than 22.13 and 24.21 q/ha. The average yield increase was observed 37.15 per cent. In spite of increase in yield of paddy, technology gap, extension gap and technology index existed. The improved technology gave higher gross return (37020 and 39180 Rs./ha), net return (16820 and 18920 Rs./ha) with higher benefit cost ratio (1.83 and 1.93) as compared to farmer's practices. The variation in per cent increase in the yield was found due to the poor management practices, lack of knowledge and poor socio economic condition. Under sustainable agricultural practices, with this study it is concluded that the FLDs programmes were effective in changing attitude, skill and knowledge of improved package and practices of HYV of paddy adoption.

scholarly journals Semi-Automatic Method for Early Detection of Xylella fastidiosa in Olive Trees Using UAV Multispectral Imagery and Geostatistical-Discriminant Analysis

2020 ◽  
Vol 13 (1) ◽  
pp. 14
Author(s):  
Annamaria Castrignanò ◽  
Antonella Belmonte ◽  
Ilaria Antelmi ◽  
Ruggiero Quarto ◽  
Francesco Quarto ◽  
...  
Keyword(s):  
Discriminant Analysis ◽  
Early Detection ◽  
Plant Pathogens ◽  
Early Stage ◽  
Xylella Fastidiosa ◽  
Mediterranean Countries ◽  
Parametric Classification ◽  
Aerial Vehicle ◽  
Olive Groves ◽  
Olive Trees

Xylella fastidiosa subsp. pauca (Xfp) is one of the most dangerous plant pathogens in the world. Identified in 2013 in olive trees in south–eastern Italy, it is spreading to the Mediterranean countries. The bacterium is transmitted by insects that feed on sap, and causes rapid wilting in olive trees. The paper explores the use of Unmanned Aerial Vehicle (UAV) in combination with a multispectral radiometer for early detection of infection. The study was carried out in three olive groves in the Apulia region (Italy) and involved four drone flights from 2017 to 2019. To classify Xfp severity level in olive trees at an early stage, a combined method of geostatistics and discriminant analysis was implemented. The results of cross-validation for the non-parametric classification method were of overall accuracy = 0.69, mean error rate = 0.31, and for the early detection class of accuracy 0.77 and misclassification probability 0.23. The results are promising and encourage the application of UAV technology for the early detection of Xfp infection.

scholarly journals Individual and Combined Effects of Planting Date, Seeding Rate, Relative Maturity, and Row Spacing on Soybean Yield

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 605
Author(s):  
Peder K. Schmitz ◽  
Hans J. Kandel
Keyword(s):  
Seed Yield ◽  
Management Practices ◽  
Synergistic Effects ◽  
Canopy Cover ◽  
Planting Date ◽  
Row Spacing ◽  
Growth Stages ◽  
Seeding Rate ◽  
Yield Increase ◽  
Beginning Of Flowering

Planting date (PD), seeding rate (SR), relative maturity (RM) of cultivars, and row spacing (RS) are primary management factors affecting soybean (Glycine max (L.) Merr.) yield. The individual and synergistic effects of PD, SR, RM, and RS on seed yield and agronomic characteristics in North Dakota were herein investigated. Early and late PD, early and late RM cultivars, two SR (408,000 and 457,000 seed ha−1), and two RS (30.5 and 61 cm) were evaluated in four total environments in 2019 and 2020. Maximizing green canopy cover prior to the beginning of flowering improved seed yield. Individual factors of early PD and narrow RS resulted in yield increase of 311 and 266 kg ha−1, respectively. The combined factors of early PD, late RM, high SR, and narrow RS improved yield by 26% and provided a $350 ha−1 partial profit over conventional practices. Canopy cover and yield had relatively weak relationships with r2 of 0.36, 0.23, 0.14, and 0.21 at the two trifoliolate, four trifoliolate, beginning of flowering, and beginning of pod formation soybean growth stages, respectively. Producers in the most northern soybean region of the USA should combine early planting, optimum RM cultivars, 457,000 seed ha−1 SR, and 31 cm RS to improve yield and profit compared to current management practices.

scholarly journals Agro-Economic Evaluation of Alternative Crop Management Options for Teff Production in Midland Agro-Ecology, Ethiopia

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 298
Author(s):  
Fekremariam Asargew Mihretie ◽  
Atsushi Tsunekawa ◽  
Nigussie Haregeweyn ◽  
Enyew Adgo ◽  
Mitsuru Tsubo ◽  
...  
Keyword(s):  
Management Practices ◽  
Smallholder Farmers ◽  
Early Stage ◽  
Crop Management ◽  
Production Costs ◽  
Agronomic Performance ◽  
Labor Costs ◽  
Management Options ◽  
Area Index ◽  
Weed Population

Teff is an important crop for smallholder farmers in Ethiopia. Improved crop management practices are needed to increase teff productivity and decrease production costs. Here, we used a split–split plot design to evaluate the impacts of different tillage, sowing, and soil compaction practices, and their combinations, on agronomic performance, weed population, lodging, and cost in teff production at the Aba Gerima watershed in northwestern Ethiopia in 2018–2020. Reduced tillage (RT) improved soil moisture, resulting in increased agronomic performance and decreased production costs compared with conventional tillage (CT); however, the weed population was substantially larger with RT than with CT. Row planting (RP) reduced seed cost and lodging but increased sowing and weeding costs compared with broadcast planting (BP). Plant population and leaf area index were substantially greater with BP than with RP during early-stage growth, but this reversed during late-stage growth. Despite labor costs being significantly greater with (WC) compaction than without (NC), little to no differences were observed in the weed population or in agronomic performance. Partial cost–benefit analysis revealed that RT–RP–WC followed by RT–RP–NC was the most economical treatment combination, suggesting that RT–RP–NC could be a labor-effective means of increasing teff production by smallholder farms in Ethiopia.

The inseparable nature of working and learning: peripheral management practice that facilitates employee learning

2014 ◽  
Vol 28 (5) ◽  
pp. 10-12 ◽  
Author(s):  
Jay Andrew Cohen
Keyword(s):  
Management Practices ◽  
Management Practice ◽  
Point Of View ◽  
Management Activity ◽  
Content Type ◽  
Employee Learning ◽  
Frontline Managers ◽  
Social Act ◽  
Practical Implications ◽  
Good Manager

Purpose – This paper aims to look at the peripheral management practice that facilitates employee learning. Such management practices are embedded or inseparable to working and being a good manager. Design/methodology/approach – Point of view. Findings – For many frontline managers and their employees, the separation between working and learning is often not apparent. There appears to be no clear distinction between when they are working and when they are learning. Practical implications – Better development of organizational managers. Originality/value – This paper highlights the informal nature of learning and working and builds on the understanding that much of the learning that occurs at work occurs as part of a social act, often involving managers and their employees. In this way, employee learning that is identified and facilitated by frontline managers is so often entwined in other management activity. Furthermore, this paper outlines some practical actions that organizations can undertake to aid greater frontline management involvement in employee learning.

scholarly journals β-Thalassemia Intermedia in Northern Iraq: A Single Center Experience

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Nasir A. S. Al-Allawi ◽  
Sana D. Jalal ◽  
Ameen M. Mohammad ◽  
Sharaza Q. Omer ◽  
Raji S. D. Markous
Keyword(s):  
Management Practices ◽  
Iron Chelation ◽  
Globin Genes ◽  
Thalassemia Intermedia ◽  
Severe Phenotype ◽  
Contributing Factors ◽  
Northern Iraq ◽  
Single Center Experience ◽  
Skeletal Changes ◽  
Mediterranean Countries

To investigate the molecular basis ofβ-thalassemia intermedia in Northern Iraq and evaluate its management practices, a total of 74 patients from 51 families were enrolled. The patients were clinically and hematologically reevaluated, and had theirβ-thalassemia mutations characterized, as well as the number ofα-globin genes andXmnIGγ−158 (C>T) polymorphism studied. Out of 14β-thalassemia mutations identified, the four most common were IVS-I-6 (T>C) [33.3%], IVS-II-I (G>A) [21.1%], codon 82/83(−G) [10.1%], and codon 8 (−AA) [8.1%]. The most common contributing factors to the less severe phenotype of thalassemia intermedia were found to be the inheritance of mildβ-thalassemia alleles and theXmnI polymorphism, while concomitantα-thalassemia had a limited role. Several complications were documented including: pulmonary hypertension in 20.4%, diabetes mellitus in 1.4%, hypothyroidism in 2.9%, and heart failure in 2.7%, while no documented cases of venous thrombosis were found. Compared to their counterparts in several Mediterranean countries, it appears that our patients were much less frequently transfused and had a lower proportion of patients who were splenectomized, on iron chelation, or hydroxycarbamide therapy. Such practices require further scrutiny to ensure that a better level of care is provided and that growth retardation, skeletal changes, and other complications are prevented or reduced.

Play it Again Sam — an Essay on Salmon Enhancement

1974 ◽  
Vol 31 (8) ◽  
pp. 1433-1456 ◽  
Author(s):  
P. A. Larkin
Keyword(s):  
Management Practices ◽  
Pacific Salmon ◽  
Point Of View ◽  
Provincial Government ◽  
Research Information ◽  
Control Programs ◽  
Successful Program ◽  
The Pacific ◽  
Management And Development ◽  
Economic Worth

For more than 100 years efforts have been made to increase the abundance of the various species of Pacific salmon. The success of these ventures is largely a matter of conjecture because the scale of natural fluctuations is sufficient to mask the effect of human intervention. No well-defined program for salmon enhancement has yet been developed for British Columbia as a whole. This is mainly attributable to the pressures for providing protection for the existing stocks in the circumstances of an intensive fishery and increasing effects of other resource uses.From a social point of view, salmon enhancement is a highly desirable activity. Salmon occupy a special place in the culture of residents of the Pacific coast. Salmon arc economically valuable and salmon fishing provides a rich source of employment. Recreational fisheries are valuable but their true economic worth is difficult to judge. Benefit:cost ratios for salmon enhancement should be calculated for whole programs rather than for individual projects to obtain an approach consistent with the desirable strategy of development.From a biological point of view, salmon enhancement is feasible. There is potential in the ocean for growing more salmon; many historic runs can be rebuilt and there are many opportunities for colonizing watersheds that are currently inaccessible to salmon. Harvesting of increased stocks of salmon could pose risks for natural stocks that are relatively unproductive. More effective management and development of new strains of salmon may be required in these circumstances. Predator-control programs may in some instances be useful adjuncts to salmon-enhancement projects.The types of enhancement activity that will most likely be rewarding are those that interfere least with the natural life history. Removal of obstructions, regulation of stream flow, construction of artificial spawning channels, are typical simple measures that involve less research information and less risk than rearing hatcheries.Priorities for different salmon-enhancement projects involve consideration of the regional economic and social conditions as well as appreciation of the biological and physical problems. Regardless of priorities it is essential to a successful program that there be a commitment to continuity. Additionally, the total administrative complex for salmon enhancement should involve research components.The execution of a successful salmon-enhancement program depends on the establishment of an agency with the single responsibility of salmon enhancement. The financing of a successful program should depend partly on revenues generated from the resource users, such as a tax on commercially caught salmon, a license for saltwater angling. Special grants from federal and provincial governments would also be appropriate. Regardless of the administrative arrangements, it is urgently necessary that provincial government involvement be more substantial than it is at present. With their control over resource management practices, the provincial government is in a vital position for maintenance of freshwater environments.An investment of at least $100 million, and probably twice that amount, could be undertaken in a salmon-enhancement program that could be executed within 10 years. There are compelling reasons for starting on this enhancement program immediately.

Tillage and Planting Date Effects on Weed Dormancy, Emergence, and Early Growth in Organic Corn

Weed Science ◽  
2015 ◽  
Vol 63 (2) ◽  
pp. 477-490 ◽  
Author(s):  
John R. Teasdale ◽  
Steven B. Mirsky
Keyword(s):  
Cover Crop ◽  
Dominant Species ◽  
Management Practices ◽  
Crop Management ◽  
Planting Date ◽  
Hairy Vetch ◽  
Planting Dates ◽  
Weed Biomass ◽  
Giant Foxtail ◽  
Smooth Pigweed

Insufficient weed control is a major constraint to adoption of reduced-tillage practices for organic grain production. Tillage, cover crop management, and crop planting date are factors that influence emergence periodicity and growth potential of important weed species in these systems. We assessed two hairy vetch cover crop management practices, disk-kill and roll-kill, across a range of corn planting dates from early May to late June in three experiments in Beltsville, MD. Patterns of seed dormancy, emergence, and early weed growth were determined for overseeded populations of common ragweed, giant foxtail, and smooth pigweed, three important species in the Mid-Atlantic states that represent early to late emergence. Common ragweed emergence was lowest and dormancy was highest of the three species across all planting dates. Giant foxtail emergence was higher than the other species in roll-killed hairy vetch and included a significant number of seeds that germinated before rolling operations in late June. Smooth pigweed had the highest emergence and lowest dormancy in disk-killed hairy vetch in June. Individual giant foxtail plant weight was higher in roll-killed than disk-killed hairy vetch in 2 of 3 yr, whereas that of smooth pigweed plants was higher in disk-killed than roll-killed vetch in 2 of 3 yr. Giant foxtail was the dominant species in roll-killed hairy vetch (averaged 79% of total weed biomass at corn silking), probably because of early germination and establishment before rolling operations. Smooth pigweed was the dominant species in disk-killed hairy vetch at June planting dates (averaged 77% of total weed biomass), probably because of high growth rates under warm conditions in tilled soil. This research demonstrated that cover crop management practices and the timing of planting operations can shift the dominant species of weed communities in organic farming systems and must be considered in long-term weed management planning.

scholarly journals Influence of green manure phytomass treatment by microbial preparations on grain productivity and quality indicators of winter wheat

2020 ◽  
Author(s):  
A.V. Prikhodko ◽  
◽  
I.A. Kameneva ◽  
A.I. Yakubovskaya ◽  
N.V. Karaeva ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Green Manure ◽  
Organic Fertilizer ◽  
Point Of View ◽  
Plant Residues ◽  
Net Income ◽  
Economic Point ◽  
Yield Increase ◽  
Stage Of Development ◽  
Biological Preparation

Treatment of the triticale phytomass with the complex biological preparation KBP-5M before incorporation into the soil contributed to the activation of microbiological processes in the 0-30 cm layer. In the variants when the plant was in the phenological stage of spike emergence, we noted an increase in the content of N-NO3 by 0.19-0.46 mg per 100 g of soil; Р2О5 – up to 2.97; K2О – up to mg/100 g. The reason for that was the maximum accumulation of organic matter in the phytomass of triticale at the aforementioned stage of development (8.25-8.52 t/ha). The use of KBP-5M had a positive effect on the development of winter wheat when green manure was the preceding crop. There is a tendency to increase the density of the stalk by 13.3 %, including productive stems – by 3.9 % and the number of grains from 10 plants – by 1.7 % compared to the use of triticale plants as an organic fertilizer without the treatment with biological preparation. Despite the trend of increasing yields from 4.32 to 4.43 t/ha, no reliable yield increase was obtained. When applying KBP-5M on triticale plant residues, there was an increase in protein content by 0.3 % and gluten – by 1.1 % compared to variants without the biological preparation. According to the indicators of 1000-grain weight and hectolitre weight, there were no significant differences between the studied variants. The use of KBP-5M has been justified from an economic point of view since 277 to 1535 rubles per ha of contingent net income was obtained and the payback ratio for the use of the biological product was 1.05–5.79.

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