World Journal of Agriculture and Soil Science最新文献_第5页

Suitability Evaluation of Urban Soils underline by Asu River Parent Material forCassava Manihotesculenta and Bambara groundnut (Vignasubterranea (L.) Verdc) Production in Ebonyi, Southeastern Nigeria 阿苏河母质基质下城市土壤对木薯和班巴拉花生的适宜性评价Verdc)尼日利亚东南部Ebonyi的生产

World Journal of Agriculture and Soil Science Pub Date : 2020-05-11 DOI: 10.33552/wjass.2020.04.000599

C.M.Chris Emenyonu

{"title":"Suitability Evaluation of Urban Soils underline by Asu River Parent Material forCassava Manihotesculenta and Bambara groundnut (Vignasubterranea (L.) Verdc) Production in Ebonyi, Southeastern Nigeria","authors":"C.M.Chris Emenyonu","doi":"10.33552/wjass.2020.04.000599","DOIUrl":"https://doi.org/10.33552/wjass.2020.04.000599","url":null,"abstract":"Cassava and Bambara groundnut are commonly consumed crops in Nigeria. Cassava is a tuber crop of utmost importance in Nigeria and increasing the production of cassava will enhance food security because cassava is consumed widely in Nigeria and Bambara groundnut is the third most important legume after groundnut (Arachishypogaea) and cowpea (Vignaunguiculata) in Africa. Soil suitability evaluation of some urban soils derived from Asu river group in Ebonyi rainforest agroecological zone of South eastern Nigeria was undertaken to define the fitness of the soil for production of River for Cassava (Manihotesculenta and Bambara groundnut (Vignasubterranea (L.) Verdc). The FAO guideline for land evaluation was used. Results obtained showed that sand content ranged from 481.85 – 669.6 g kg-1, silt content ranged from 192.8 – 330.27 g kg-1 while clay content ranged from 137.6-258.35 g kg-1. Bulk density ranged from 1.43- 1.44 gcm-3 and textural class ranged from sandyloam to sandy clay loam. PH varied from very strongly acidic (4.37) to moderately acidic (5.79). Organic matter ranged from 5.08-7.94 g kg-1. Soils were low in available phosphorus with values ranging from 7.60-10.34 g kg-1 and total nitrogen ranged from 0.30 to 0.85 g kg-1. Suitability evaluation showed that all the sites studied were currently not suitable (N1) for cassava production when the pH requirement for cassava was matched with pH of the study area. These urban soils were also currently not suitable (N1) for Bambara groundnut production due to limitation of rainfall and total nitrogen. Therefore, this study recommends liming of soil of the study area to encourage cultivation and promote sustainable cassava production and in the cassava of bambara groundnut, since rainfall of the area is not suitable for its production, there is no need to embark on its cultivation except in alternative irrigation pattern is to be used.","PeriodicalId":194042,"journal":{"name":"World Journal of Agriculture and Soil Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129308241","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

Effects of Calcium with and without Surfactants on Fruit Quality, Mineral Nutrient, Respiration and Ethylene Evolution of ‘Red Spur Delicious’ Apple 添加和不添加表面活性剂钙对红刺鲜苹果果实品质、矿质营养、呼吸和乙烯释放的影响

World Journal of Agriculture and Soil Science Pub Date : 2020-04-28 DOI: 10.33552/wjass.2020.04.000598

E. Fallahi

引用次数: 1

Iodine Nutrition Knowledge of Food Handlers: A Capricorn and Waterberg District Study, Limpopo Province, South Africa 食品处理人员的碘营养知识:南非林波波省摩羯座和沃特伯格地区研究

World Journal of Agriculture and Soil Science Pub Date : 2020-04-28 DOI: 10.33552/wjass.2020.04.000597

M. Solomon

引用次数: 0

Creating a Multivariate-Multifunctional Database for Weed Control to Support Organic Mixed Vegetable Production 创建一个多变量多功能的杂草控制数据库，支持有机混合蔬菜生产

World Journal of Agriculture and Soil Science Pub Date : 2020-04-17 DOI: 10.33552/wjass.2020.04.000596

Yaqeen Salatneh Ashqer

引用次数: 0

Remediation Methods of Crude Oil Contaminated Soil 原油污染土壤的修复方法

World Journal of Agriculture and Soil Science Pub Date : 2020-03-06 DOI: 10.33552/wjass.2020.04.000595

Ding Xuezhi

引用次数: 20

Nutrient Intake, Fermentation, Digestibility and Growth Performance of Barbarin Lamb Supplemented with Sweet Lupin 枸杞羔皮添加甘露的营养摄入、发酵、消化率及生长性能

World Journal of Agriculture and Soil Science Pub Date : 2020-03-02 DOI: 10.33552/wjass.2020.04.000594

S. Abidi

{"title":"Nutrient Intake, Fermentation, Digestibility and Growth Performance of Barbarin Lamb Supplemented with Sweet Lupin","authors":"S. Abidi","doi":"10.33552/wjass.2020.04.000594","DOIUrl":"https://doi.org/10.33552/wjass.2020.04.000594","url":null,"abstract":"This study aims to evaluate the effect of white lupine seeds as a substitute for soybean meal in the diets of Twenty-four 6 and a half monthold Barbarine lambs (average initial weight 23 kg) were divided into three equal groups. Three types of concentrates, the first two of which were iso-nitrogenous, were formulated as follows: CC1 containing 75% barley, 22.5% soybean meal and 2.5%mineral and vitamin supplement; CC2 containing lupine as a substitute for soybeans; and CC3 containing only barley and CMV (This is the concentrated 1 devoid of soybean meal). In addition to the hay that was distributed ad libitum, animals assigned to the first and the second group received daily, 500 g of concentrate 1 and 500g of concentrate 2, respectively. Those assigned to the third one received alternately concentrate 2 (day1) and concentrate 3 (day2). Experiment period was divided in a growth period (80 days) followed by a digestible period (10 days). Diet had no significant effect on total dry matter and water intakes, average daily gain, diet digestibility and microbial synthesis (P > 0.05). For the nitrogen balance, the animals showed different retained nitrogen level (P < 0.05). Fermentation parameters were not affected by protein source. However, only the number of protozoa was influenced by the day of fluid collection (P < 0.05). It can be concluded that lupine grains can substitute safely soybean meal in diets of Barbarine lambs.","PeriodicalId":194042,"journal":{"name":"World Journal of Agriculture and Soil Science","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115433655","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: 2

Current Application of Microencapsulation Technology in Bioremediation of Polluted Groundwater 微胶囊技术在污染地下水生物修复中的应用现状

World Journal of Agriculture and Soil Science Pub Date : 2020-02-28 DOI: 10.33552/wjass.2020.04.000593

S. Ethica

引用次数: 0

Antimicrobial Effects of Herb Extracts Against Foodborne Pathogen Listeria monocytogenes in Vitro 中药提取物对食源性单核增生李斯特菌的体外抑菌作用

World Journal of Agriculture and Soil Science Pub Date : 2020-02-19 DOI: 10.33552/wjass.2020.04.000590

Han Yang

{"title":"Antimicrobial Effects of Herb Extracts Against Foodborne Pathogen Listeria monocytogenes in Vitro","authors":"Han Yang","doi":"10.33552/wjass.2020.04.000590","DOIUrl":"https://doi.org/10.33552/wjass.2020.04.000590","url":null,"abstract":"Herb extract is a type of well-known natural antimicrobial from plants. Food Drug Administration recognized that most herb extracts as Gen - erally Recognized as Safe for human consumption. The objective of this study is to conduct three experiments and to evaluate the inhibitory and bactericidal effects of nine herb extracts against five representative strains of Listeria monocytogenes in vitro . In the experiment 1, each of herb extracts 2, 4, 5, 8 exhibited inhibitory effects against five strains of monocytogenes individually at 37 °C in Mueller-Hinton broth (MHB). The MIC values of those four herb extracts ranged between 5 - 50 mg/mL. In experiment 2, herb extract 4, which showed the lowest MIC value (5 mg/mL), reduced populations of L. monocytogenes in a range of 0.38 - 0.91 log CFU/mL after 30 min treatment at 37oC in MHB, indicating that herb extract 4 may not expected to be used as an antimicrobial agent for the purpose of reducing within a short period of time. In experiment 3, at concentrations of 1.56 and 0.78 mg/mL, herb extracts 2, 4, 5, 8 inhibited the growth of a five-strain monocytogenes cocktail individually at the abused refrigerator temperature of 12 o C, except herb extract 8 at the concentration of 0.78 mg/mL. At a concentration of 3.13 mg/mL, those four herb extracts reduce cell populations in a range of 2.2 to 1.6 mg/mL at 11 days. Herb extracts 2, 4, 5 and 8 could be potentially developed into food preservatives for controlling foodborne L. monocytogenes .","PeriodicalId":194042,"journal":{"name":"World Journal of Agriculture and Soil Science","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121393476","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

Isolation, Identification and Characterization of Pectinase Producers from Agro Wastes (Citrus sinensis and Ananas comosus) 农业废弃物中果胶酶产生菌的分离、鉴定与鉴定

World Journal of Agriculture and Soil Science Pub Date : 2020-02-18 DOI: 10.33552/wjass.2020.04.000589

Ebuehi Oat

{"title":"Isolation, Identification and Characterization of Pectinase Producers from Agro Wastes (Citrus sinensis and Ananas comosus)","authors":"Ebuehi Oat","doi":"10.33552/wjass.2020.04.000589","DOIUrl":"https://doi.org/10.33552/wjass.2020.04.000589","url":null,"abstract":"Fruits detached from the living plants cannot repair its cells or defend its tissues against natural deterioration. Pectinases, the first enzymes to be secreted by fungal pathogens, weakens the plant cell wall and expose other polymers to degradation by hemicellulases and cellulases, are of significant importance in current biotechnological era, with their applications in various industries. The objective of this study, is to isolate and characterize pectinase producers from Bacillus subtilis and Aspergilus niger based on their carbon and nitrogen sources, using different assays. Fresh and rotten orange and pineapple peel were incubated in nutrient broth and the resulting microorganisms subtilis were subculture in pectin agar. Pectinase was extracted with pectin agar incubated at room temperature for 6 days. Clear zones of pectinase were isolated for secondary screening by estimating polygalacturonase (PG) and pectin lyase (PL) production under solid state fermentation by using the modified medium. Pectinase activity was analysed by alternating certain parameter, such as temperature and pH. Concentration of D-galacturonic acid and polygalacturonase were adjusted to investigate pectinase activity. The effect of inoculum size (10 6 CFU/ml, 10 5 CFU/ml, 10 4 CFU/ml and 10 3 CFU/ ml) for the production of pectinase. From this study, 10 4 CFU/ml and 10 3 CFU/ml were optimum inoculum sizes for the production of pectinase for both rotten and fresh oranges and pineapples respectively with level of significance (p < 0.05). Optimum pectinase activity was recorded at pH 5 and temperature 35 °C and 30 °C and pH5 and temperature 30 °C and 35 °C for both fresh and rotten oranges and pineapples respectively. Considering its great significance, with tremendous potential pectinase offers industries, one can conclude that strategic ways to produce maximum pectinase with low cost production should be studied","PeriodicalId":194042,"journal":{"name":"World Journal of Agriculture and Soil Science","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124530994","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: 3

Ailanthus Altissima (Mill.) and Varroa Destructor (Anderson & Trueman) - Two Alien and Invasive Species with Impact on the Environment and on the “Hive System” Ailanthus Altissima (Mill.)和Varroa Destructor (Anderson & Trueman) -两种对环境和“蜂巢系统”有影响的外来和入侵物种

World Journal of Agriculture and Soil Science Pub Date : 2020-02-12 DOI: 10.33552/wjass.2020.04.000586

T. Gardi

引用次数: 0