Agricultural Science and Technology最新文献

Suitability of some growing media for cashew seedling growth and development in the nursery 几种培养基对腰果苗圃生长发育的适宜性

Agricultural Science and Technology Pub Date : 2023-09-01 DOI: 10.15547/ast.2023.03.024

Aremu-Dele Olufemi, Nduka Beatrice Abanum, Sobowale Ibrahim Olalekan, Adesanya Kehinde Ademola, Olorundare Bunmi Olaoluwa

{"title":"Suitability of some growing media for cashew seedling growth and development in the nursery","authors":"Aremu-Dele Olufemi, Nduka Beatrice Abanum, Sobowale Ibrahim Olalekan, Adesanya Kehinde Ademola, Olorundare Bunmi Olaoluwa","doi":"10.15547/ast.2023.03.024","DOIUrl":"https://doi.org/10.15547/ast.2023.03.024","url":null,"abstract":"Abstract. Using the right growing media is pivotal for cultivating high-quality seedlings. While topsoil remains a prevalent choice in nurseries, there is a growing need to explore its effectiveness in cashew seedling production and find potential alternatives that might reduce our dependence on it. A three-month experiment was undertaken at the Cocoa Research Institute of Nigeria’s nursery. The setup followed a Completely Randomized Design (CRD) incorporating ten treatment variations, each replicated thrice. These treatments involved two cashew nut types, Jumbo and Medium, and five distinct growing media: 100% Topsoil, 100% Sawdust, 75% Topsoil + 25% Sawdust, 50% Topsoil + 50% Sawdust, and 25% Topsoil + 75% Sawdust. For the procedure, each of these media was filled into perforated polythene bags measuring 30cm x 15cm, with one seed planted per bag. Data collected were on % emergence, morphological, shoot and root data. Data were subjected to ANOVA using SAS (version 2010) statistical package and means were separated using DMRT at (P≤0.05). Findings revealed no notable variance in percentage mean emergence at four weeks post-planting or in leaf count at the twelve-week mark. Control treatments (100% topsoil) for jumbo and medium had the shortest plant height, lowest number of leaves, seedling vigour, fresh root weight and taproot length. 100% topsoil as a growing medium for raising cashew seedlings should be discouraged as the experimented growing media offered statistically the same or improved emergence, morphology, and root growth development.","PeriodicalId":55762,"journal":{"name":"Agricultural Science and Technology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135639229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of green pruning on the fruitfulness of winter buds, quantity and quality of yield in Cabernet Franc cultivar 绿色修剪对品丽珠品种冬芽结实性及产量质量的影响

Agricultural Science and Technology Pub Date : 2023-09-01 DOI: 10.15547/ast.2023.03.029

F. Emurlova, A. Ivanov

引用次数: 0

Systematic review of macrofungi biodiversity in Eastern Africa countryside: uses, distribution, and conservation checklists 东非农村大型真菌生物多样性的系统综述:使用、分布和保护清单

Agricultural Science and Technology Pub Date : 2023-09-01 DOI: 10.15547/ast.2023.03.022

Ndifon E. Mjaika

{"title":"Systematic review of macrofungi biodiversity in Eastern Africa countryside: uses, distribution, and conservation checklists","authors":"Ndifon E. Mjaika","doi":"10.15547/ast.2023.03.022","DOIUrl":"https://doi.org/10.15547/ast.2023.03.022","url":null,"abstract":"Abstract. Mushroom biodiversity covers some indispensable non-timber forest products that are wide-spread in Africa, although these resources are currently underutilized, underdeveloped, and left to face the vagaries of climate change and human activities unmanaged. The mushrooms of Eastern Africa have barely been identified or examined for their potential to better the livelihood of the inhabitants. This review of published-online-only literature was carried out to systematically document this biodiversity and its potentials. There were 135 edible mushrooms, 9 edible+medicine mushrooms, and 59 species with no ascribed uses out of 205 species altogether in Eastern Africa. Two mushrooms were identified as poisonous. There were 32 key edible mushrooms in Eastern Africa based on their usage. A tally of mushrooms species (based on country where they were sighted) showed that Ethiopia accounted for 96 species, Tanzania (75), Burundi (37), Rwanda (24), Kenya (18), and Uganda (6) while no information was available from the rest of the countries in the region. The most common genera of mushrooms included Termitomyces, Russula, Pleurotus, Marasmius, Lactarius, Coprinus, Cantharellus, Armillaria, Amanita, and Agaricus. While the most popular species (based on consumption by more locations/tribes) were Amanita zambiana, Hypholoma fasciculare (could be poisonous), Pleurotus cystidiosus, Polyporus tenuiculus, Termitomyces letestui, and Termitomyces striatus. However, it was observed that these tribes or locations were often only within a few countries. Therefore, truly regional mushrooms included Schizophyllum commune (could be poisonous), Suillus luteus, Termitomyces clypeatus, Termitomyces striatus, and Termitomyces microcarpus based on their being found in at least three or more countries. Fungi biodiversity conservation is inadequate in the region.","PeriodicalId":55762,"journal":{"name":"Agricultural Science and Technology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135639237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Factors determining the competitiveness of grain production and opportunities for their digital optimization 决定粮食生产竞争力的因素及其数字化优化的机会

Agricultural Science and Technology Pub Date : 2023-09-01 DOI: 10.15547/ast.2023.03.031

G. Aleksiev, D. Doncheva

{"title":"Factors determining the competitiveness of grain production and opportunities for their digital optimization","authors":"G. Aleksiev, D. Doncheva","doi":"10.15547/ast.2023.03.031","DOIUrl":"https://doi.org/10.15547/ast.2023.03.031","url":null,"abstract":"Abstract. Grain production is one of the traditional agricultural sub-sectors in Bulgaria, which has been identified for its comparative advantages. The significant levels of social support provided for these businesses after the accession of Bulgaria to the EU and under the influence of Common Agricultural Policy (CAP) have incited considerable investments in their innovative technological development. Given the significant economic role of this sector in the sectoral development determines the need for studying their competitiveness and analysis of the factors that determine it. The present study investigated the level of competitiveness of Bulgarian grain production during the period 2014-2020 and its determining factors by using the Relative Trade Advantage index in order to identify opportunities for digital optimization. The results showed that Bulgarian grain production is a competitive sector but at the end of the studied period the competitiveness of barley and maize is increasing while the wheat competitiveness is decreasing. Finally, some digital possibilities for increasing the technical efficiency of Bulgarian grain production were revealed.","PeriodicalId":55762,"journal":{"name":"Agricultural Science and Technology","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135639226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing the energy efficiency of irrigation pump systems 评估灌溉泵系统的能源效率

Agricultural Science and Technology Pub Date : 2023-09-01 DOI: 10.15547/ast.2023.03.026

G. Popov, K. Klimentov, B. Kostov, I. Ivanov

{"title":"Assessing the energy efficiency of irrigation pump systems","authors":"G. Popov, K. Klimentov, B. Kostov, I. Ivanov","doi":"10.15547/ast.2023.03.026","DOIUrl":"https://doi.org/10.15547/ast.2023.03.026","url":null,"abstract":"Abstract. The operating modes of pump units play a crucial role in determining the energy consumption of irrigation systems. Thus, the necessity of performing qualitative and quantitative assessments of the energy efficiency of such systems is of significant importance. This paper proposes a method, newly established by authors, for accomplishing such an assessment. Using dimensionless criteria from Dimensional Analysis (as outlined in earlier publications), we propose a method to determine the specific energy consumption (ev) for a given flow rate, regulated by either VFD or throttle flow control, which are commonly used in practice. The specific relative energy consumption is depicted as an exponential relationship with four other criteria, each expressed relatively. The exponents are determined depending on the type of pump system flow rate control method applied. This energy exponent is also expressed in the dimensionless form obtained depending on the main parameters of the pump and pipe system. In this regard, two energy efficiency coefficients are introduced – of the pump and pipe system . Results obtained after performing numerical studies of a pump system, consisting of Bulgarian double-suction pumps, are presented.","PeriodicalId":55762,"journal":{"name":"Agricultural Science and Technology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135639366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Method for obtaining gluten-free high protein animal feeds 无麸质高蛋白动物饲料的制备方法

Agricultural Science and Technology Pub Date : 2023-09-01 DOI: 10.15547/ast.2023.03.025

I. Lazova-Borisova, N. Markov

引用次数: 0

A new type of laboratory microdevice for distillation of lavender and herb raw materials 一种用于薰衣草及草本原料蒸馏的新型实验室微型装置

Agricultural Science and Technology Pub Date : 2023-09-01 DOI: 10.15547/ast.2023.03.030

A. Dobreva, M. Todorova

{"title":"A new type of laboratory microdevice for distillation of lavender and herb raw materials","authors":"A. Dobreva, M. Todorova","doi":"10.15547/ast.2023.03.030","DOIUrl":"https://doi.org/10.15547/ast.2023.03.030","url":null,"abstract":"Abstract. Bulgaria is known for its essential oils and medicinal plants, which occupy increasing parts in the agricultural areas. In recent years, the boom in lavender production has made our country the largest producer of lavender oil in the world. This intensified the scientific work with it and led to the creation of new lavender varieties and lines that are used in production. All research and tests on an industrial scale go through the laboratory distillation of small amounts of plant material to determine the quantity and quality of essential oil. In laboratory practice, micro-apparatus for water distillation is widely used, which does not reflect the real results for the yield and quality of the product. This necessitated the creation of a new laboratory device for determining the content of essential oil in raw materials with labile (rich in esters) oil by the application of steam distillation. The design of this apparatus mirrors industrial installations, thus the results it produces accurately simulate those of industrial production. Tests with herbal raw materials, like Lavandula angustifolia Mill., Salva sclarea L. and Helichrysum italicum (Roth) G. Don showed that the model is effective and applicable. The oils obtained by the new apparatus retained an ester content of 40.2%, 75.0% and 4.8%, respectively; these figures represent a significant improvement over previous methods.","PeriodicalId":55762,"journal":{"name":"Agricultural Science and Technology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135639102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of physicochemical parameters and assessment of trace metals bioaccumulation in the Lagos lagoon and edible tissues of the southern pink shrimp (Farfantepenaeus notialis - Pérez-Farfante, 1967) 拉各斯泻湖和南方粉红虾(Farfantepenaeus notialis - p<s:1> - farfante, 1967)食用组织中痕量金属生物积累的理化参数测定和评价

Agricultural Science and Technology Pub Date : 2023-09-01 DOI: 10.15547/ast.2023.03.027

V.F. Akinjogunla, C.E. Ejikeme, E.P. Udoinyang, A.A. Mustapha

{"title":"Determination of physicochemical parameters and assessment of trace metals bioaccumulation in the Lagos lagoon and edible tissues of the southern pink shrimp (Farfantepenaeus notialis - Pérez-Farfante, 1967)","authors":"V.F. Akinjogunla, C.E. Ejikeme, E.P. Udoinyang, A.A. Mustapha","doi":"10.15547/ast.2023.03.027","DOIUrl":"https://doi.org/10.15547/ast.2023.03.027","url":null,"abstract":"Abstract. Bio-inorganic chemistry is found as an endearing aspect to research in today’s epoch. It deals with chemical reactions between the metals with natural resources, such as air, soil, water and byproducts (foods). To assess the decline in the quality of southern pink shrimps and water quality on samples from the Lagos lagoon, the morphometric assessment of the crustacean (Farfantepenaeus notialis – F. notialis), physicochemical parameters (pH, temperature, salinity, conductivity, total hardness, total dissolved solids, total suspended solids, biological oxygen demand, chemical oxygen demand, dissolved oxygen, sulphates, nitrate and phosphate) and levels of six (6) trace metals (Cadmium, Chromium, Zinc, Iron, Manganese and Copper) were collected from three sampling points with renowned anthropogenic activities along the stretch of the Lagos Lagoon using standard analytical procedures and the results were compared with standard acceptable limits. The crustaceans used had total length (4.0 – 14.4 cm), carapace length (1.6 – 6.4 cm), total weight (1.1 – 20.8 g) and carapace weight (0.9 – 11.5 g). The results obtained in the physicochemical analysis revealed that a few parameters such as biochemical oxygen demand and total suspended solids were beyond acceptable limits, while the trace metals were present in the samples at different levels but still within the maximum residual levels in the edible tissues of the pink shrimps. The obtained results showed that the crustacean and water from the lagoon contained metals but did not exceed both local and international standards of limit and thus, they are still safe for consumption and domestic uses.","PeriodicalId":55762,"journal":{"name":"Agricultural Science and Technology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135639765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Control of plum fruit moth Cydia (Grapholita) funebrana in organic plum production 有机梅生产中梅果蛾的防治

Agricultural Science and Technology Pub Date : 2023-09-01 DOI: 10.15547/ast.2023.03.028

V. Petrova

引用次数: 0

Primary bud necrosis in vine propagation material 葡萄藤繁殖材料初生芽坏死

Agricultural Science and Technology Pub Date : 2023-09-01 DOI: 10.15547/ast.2023.03.023

N. Prodanova-Marinova, Y. Belberova, F. Emurlova

引用次数: 0