Agricultural marketing plays a vital role in economic development and livelihood of people in developing countries. Marketing of agricultural products which provide income to most farmers and marketers in Nigeria has been characterised with a lot of deficiencies which have constrained sustainable development and economic growth. This study, therefore, analysed carrot and cucumber marketing including constraints to their effective marketing in Enugu State, Nigeria. Data collected, primarily, were analysed using descriptive statistics, marketing margin and Likert type rating technique. The result shows that vegetable marketing was dominated by females (65%) who were still in their economically active age and did not belong to a cooperative society. Half of them perform a retail marketing function, 30% perform both retail and wholesale functions while 20% perform wholesale function. Vegetable marketing contributed to marketers’ income by providing N25,667.7 (USD 66.93) per month on average. The marketing margins were 26.30% and 20.18% for cucumber and carrot, respectively. The high cost of shop rent, high transportation cost, low capital, price fluctuation, poor credit facilities and a low supply of vegetables due to seasonal variation were the major constraints faced by vegetable marketers. Vegetable marketers, therefore, need support by providing affordable credit facilities and building of modern market stalls by the government. This would give them a conducive and hygienic environment. Also, vegetable marketers should form a cooperative society where they can pool resources and get financial assistance. This would lead to efficient marketing of the product.

Şekerpancarı üretiminde verim ve kalite için azot (N) ve bor (B) gübrelemesi önemlidir. Fakat fazla azotlu (N) gübreler kalite parametreleri üzerinde olumsuz etkilere neden olmaktadır. Hayvan yemi olarak kullanılan şeker pancarı yapraklarında nitrat birikiminin artması da olumsuz etkilenen kalite parametrelerinden birisidir. Bu çalışmanın amacı, şeker pancarına farklı dozda azot ve bor uygulamasının bitki yapraklarında nitrat birikimi üzerine etkisini incelemektir. Çalışma, Kahramanmaraş ili Elbistan İlçesinde 2017 yılında B içeriği 0,56 mg kg-1 olan bir arazide yürütülmüştür. Deneme tesadüf blokları faktöriyel deneme desenine göre 3 tekerrürlü olarak kurulmuştur. Denemede 5 farklı N dozu (0, 9,18, 27, 36 kg N da-1) ve 4 farklı B dozu (0, 200, 400, 600 g B da-1) uygulanmıştır. Araştırmada temmuz, ağustos, eylül ve ekim aylarında yaprak örnekleri alınmıştır. Araştırma sonuçlarına göre N dozu arttıkça yaprakların nitrat içeriği istatistiksel olarak önemli derecede artmıştır. Bor uygulamasının yaprakların nitrat içeriği üzerine etkisi önemli bulunmamıştır. Hasat dönemine doğru yaprakların nitrat içeriği istatistiksel olarak önemli düzeyde azalmıştır. Sonuç olarak hasat sonrası şekerpancarı yapraklarının hayvan yemi olarak kullanması, nitrat bakımından hayvanlar için bir risk oluşturmamaktadır.

In Ethiopia, maize is the second largest in production areas and first in its productivity but there are high yield gaps between the actual yield currently producing and the potential yield. Therefore, this study was aimed to identify factors that affecting maize production of smallholder farmers at the farm level in the Meta district in the east Hararge zone, Oromia, Ethiopia. A two-stage random sampling technique was employed and a total of 200 smallholder farmers were randomly and proportionally selected to collect primary data. Multiple linear regression models were used to analysis factors that affect maize production among smallholder farmers. The result showed that the production of maize was influenced by several factors. The coefficient provided that as the farmers obtained 1 dollar from non-farm activity, the maize production of farmers increased by 293.2 kg, keeping other factors constant. Thus, the farmers who had money from non-farm sources used as additional income to gain agricultural inputs for maize production and thus generate more maize quantity. The result was pointed out that the size of the cultivated areas of land had a positive influence on the quantity of maize production of farmers. The coefficient entailed that as the size of the cultivated areas of land increased by one hectare, the farmer’s quantity of maize production increased by 140.4 kg by keeping other factors constant. The result was also indicated that other factors being constant, the maize crop production of smallholder farmers of Meta district was decreased by 4 kg as Development Agent’s (DA’s) office distance increased by one minute. The possible explanation was that extension services were a critical source of information on agronomic practices. Therefore, policy makers should encourage the current maize production and supplying improved seed and chemical fertilizer which support to improve smallholder farm households’ welfare by increasing their sources of income.

‘Circular economy’ in agriculture centres on the production of agricultural commodities using a minimal amount of external inputs, closing nutrient loops and reducing negative discharges to the environment (in the form of wastes and emissions). This can be achieved through the (re)design of maintenance, repair, reuse, remanufacturing, refurbishing, and recycling. Under the principles of CE, products and materials approaching their end-of-life stage can be regenerated or restored or replaced. Circular agriculture is aimed at closing the loop of materials and substances, and reducing both resource use and discharges into the environment. New measures like environmental taxes, insurance for liability resulting from environmental damage, cap and trade system and environmental labelling can be explored to promote transition of a current linear model to a circular one. The circular economy in Nepal is in infant stage and there is plenty of works to be done in this sector. The results of the paper will be instrumental for the transition of Nepalese agricultural sector to a more circular one.

Bu çalışmada, Kelkit Çayı (Tokat) epilitik diyatomelerin aylık değişimi, yerleşim yeri altı ve tarım alanları altından seçilen iki istasyondan Mart-Aralık 2018 tarihleri arasında aylık periyotlarda alınan taş örneklerinde incelenmiştir. Çalışma süresince epilitik diyatomelere ait toplam 18 takson kaydedilmiştir. En fazla taksonla temsil edilen diyatome cinsleri Cymbella (3 takson) ve Nitzschia (3 takson) olurken, her iki istasyonda tüm aylarda kaydedilen diyatomeler arasındaki en yüksek nispi yoğunluklar ise Ulnaria ulna türüne ait olmuştur. İstasyonlardaki diyatomeler arasında Sorensen Benzerlik İndeksi ise %56,41 olarak bulunmuştur. Ayrıca istasyonlardan alınan su örneklerinde sıcaklık ve çözünmüş oksijen ölçümleri yapılmıştır. Ölçülen bu değişkenlerin epilitondaki diyatome gelişimini olumlu yönde etkilediği tespit edilmiştir. Epilitik florada tespit edilen diyatome türlerin nispi yoğunlukları belirlenmiştir. Elde edilen sonuçlara göre en düşük nispi yoğunluk 1. İstasyonda 4,76 olarak Mart ayında (Cymbella affinis ), 2. İstasyonda ise 2,83 olarak yine Mart ayında (Lindavia glomerata) kaydedilmiştir. En yüksek nispi yoğunluk değerleri dikkate alındığında ise 1. İstasyonda Navicula radiosa ve Ulnaria ulna türünde Aralık ayında (13,56), 2. İstasyonda ise Ulnaria ulna türünde Mart ayında (9,43) belirlenmiştir.

In this study, the eggs produced in uncontrolled village conditions were compared to free-range, organic and cage-system in two seasons, in autumn and spring, in terms of external and internal quality traits. In the autumn and spring period, 110 eggs were collected from the village eggs and 50 eggs from other production systems. In order to determine the fertility in the village eggs, 60 eggs were placed in a laboratory type incubator in both seasons and fertility control was made at the 18th day. All data of egg quality traits were performed by taking the average of the two seasons. Egg shape index, shell ratio, shell thickness, shell cleanness, shell defects, albumen and yolk traits differed significantly among production systems (P < 0.05). The lowest shape index, shell thickness and shell cleanness were found in village eggs. Higher shell rates were determined from eggs in cage and organic production compared to others (P < 0.05). The yolk height and yolk index were the lowest and the yolk colors were the darkest in the white cage eggs (P < 0.05). Brown cage eggs showed the better results in the majority of their quality traits. However, they had a higher meat and blood-spot level than other systems. In addition, the presence of cockerels in the village flocks caused the fertile eggs and approximately 85% fertility was obtained. Our results showed that it has become obvious that the village hen and free range hen eggs which can be marketed in high prices compared to the commercial eggs, have no superiority in terms of the traits they are considered. Besides, as they are significantly fertile, especially in hot summer months, according to storage duration and conditions, the probability of embryo development for these eggs has turned to be of high importance for consumption.

Fire blight, affecting more than one hundred and thirty species in the Rosaceae, is probably the most destructive disease affecting pear and apple cultivars in many countries. Currently, there are no effective synthetic compounds with systemic properties. Other major problem is the occurrence and spread of strains of Erwinia amylovora with resistance to streptomycin and copper. Taken into consideration the human and environmental health, the use of biocontrol agents either as an alternative or as a supplement within an integrated fire blight management strategy has attracted worldwide attention. In this study, E. amylovora solution of 107 CFU ml-1 was treated with bio-control agents, Bacillus subtilis str. QST 713, B. amyloliquefaciens str. MBI 600 and their mixture (at solution densities of 106, 107 and 108 CFU ml-1 for each one) on Petri dishes, containing King’s B medium and, compared with positive (streptomycin sulphate) and negative (sterile distilled water) controls. In vivo studies were performed on two-year-old apple cv. Gala seedlings grown in 45-cm-diameter pots containing a sterilized mix of soil–sand–peat under controlled greenhouse conditions (85% relative humidity, 25°C temperature and 16h of day light). The plants were irrigated as needed by drip-irrigation and each pot received a mineral solution (NPK: 20–20–20) at 2 g l-1 twice. When plant shoots reached a length of 30-35 cm, bio-control agents, individually and their mixture, were applied to the plants by a hand-sprayer. Obtaining the data, 108 CFU ml-1 of Bacillus spp. suspension mixture showed strongest in vitro antibacterial effect (26mm) among the tested treatments after positive control streptomycin (28.6mm). Parallel to in vitro findings, the mixture was most effective against the pathogen on cv. Gala (66.03%). Findings show that the use of mixture of beneficial microorganisms with individual antagonistic properties against the pathogen can be an effective strategy as a natural alternative to agrochemicals in the scope of good agriculture practices.

The sculpture, which is the expression of beliefs and fears in prehistoric times, has taken on different roles as an urban reinforcement element in all cultures with numerous themes. In the Middle Ages, it became an organic part of the architectural structure, teaching the truth about religious beliefs. With the Renaissance movement, it became independent by breaking away from the architectural structure and moved to the urban space. In the twenty-first century, its dimensions have grown to be equivalent to architecture, it has created its own space and established new aesthetic and functional relations with the audience. In this study, the relationship of some sculptures on the Alaeddin Keykubat campus of Selcuk University with the landscape elements was examined in terms of design elements and basic design principles. In the light of the data obtained, suggestions have been developed in order to increase the life and aesthetic quality of the campus.

In the present study, the production amount in the last five years (2015-2019) of Sinop province, which is located in the Black Sea Region and a significant part of fisheries production is carried out, was evaluated. For this purpose; Sinop Provincial Directorate of Agriculture and Forestry and TUIK (Turkish Statistical Institute) data were used. There are 2.326 commercial fishermen and 444 fishing boats in Sinop province. In the sea area of Sinop, 5 enterprises still produce culture fish in cages. The 2 potential marine culture areas identified in Sinop have an annual production capacity of 32.430 tons (31 enterprises). In addition, 5 bivalves (4.940 tons/year) and 1.000.000 number/year capacity juvenile fish production facilities are at the project stage. The total fisheries production of Sinop Province in 2019 was 34.620,9 tons, and 1.505 tons were obtained from aquaculture. In addition to these, 3.924 tons of fish processing facilities per year, and 35 tons of fish meal and oil processing facilities per year are operated. 66% of sea fish caught in Sinop are anchovy (Engraulis encrasicolus ponticus), 16% sprat (Sprattus sprattus phalericus), 13% horse mackerel (Trachurus trachurus), 3% bluefish (Pomatomus saltatrix) and 2% consists of other species. The most preferred marine fish by the consumers are anchovy (Engraulis encrasicolus ponticus), horse mackerel (Trachurus trachurus), whiting (Merlangus merlangus), red mullet (Mullus barbatus), bluefish (Pomatomus saltatrix), turbot (Psetta maxima) and bonito (Sarda sarda) and sea bream (Sparus aurata), sea bass (Dicentrarchus labrax) and rainbow trout (Oncorhyncus mykiss) are the culture fish species offered for sale throughout the year.