Efforts Toward Improving Maize Yields on Smallholder Farms in Uasin Gishu County,Kenya, through Site-specific,Soil-testing-based Fertiliser Recommendations: A Transdisciplinary Approach     

Arusey Chebet  Njoroge Ruth  Otinga A. Nekesa  Wilson Ng’etich  Koech Julius  Roland W. Scholz 《East African Agricultural and Forestry Journal》2017,82(2-4):201-213

This study evaluated the effects of site-specific, soil-testing-based fertiliser recommendations on maize yields using the transdisciplinary (TD) process. The TD process utilizes knowledge from science and practice. Farmers, extension officers, local financial institutions, and other practitioners collaborated with local scientists from the University of Eldoret in the process of financing, purchasing, and applying fertilisers in adequate amounts and composition. A total of 144 farmers participated in the study, which lasted for two seasons. The data sampling was based on a randomized 2?×?3?×?4?×?2 factorial complete block design, including the following factors: TD (non-participation vs participation in the TD process); ST (soil testing in the following categories: fertiliser application with no soil testing, fertiliser application following government recommendations, and application of site-specific, soil-testing-based fertiliser recommendations), and location (Kapyemit, Kipsomba, Ng’enyilel, and Ziwa). The “no soil testing” (ST₁) category refers to farmers’ own practices at an average fertilisation of about 60?kg?N?ha^?1 and 15?kg?P?ha^?1. The government recommendation (ST₂) calls for 75?kg?N?ha^?1, 25?kg?P?ha^?1, and 6?t?ha^?1 manure, and site-specific fertiliser recommendations (ST₃) were based on actual soil-testing results; generally, this resulted in the recommendation of 90?kg?N?ha^?1, 30?kg?P?ha^?1, 25 kg K ha^?1, 2?t?ha^?1 lime, and 1?t?ha^?1 manure. Highly significant effects were seen where farmers participated in the TD process (TD) for soil testing (ST). The farmers’ yields in Uasin Gishu County of 4.5?t?ha^?1 increased by approximately 1.5?t?ha^?1 based on site-specific, soil-testing fertilisation recommendations and by approximately 1.0?t?ha^?1 based on participation in the transdisciplinary process. However, as indicated by a significant interaction of the variables ST and TD—and while there is a significant main effect of participating in a TD process—the latter increase occurs only if site-specific, soil-testing-based recommendations can be used in the transdisciplinary process with farmers.  相似文献   

Intentions to consume foods from edible insects and the prospects for transforming the ubiquitous biomass into food     

Kennedy O. Pambo  Robert M. Mbeche  Julius J. Okello  George N. Mose  John N. Kinyuru 《Agriculture and Human Values》2018,35(4):885-898

Edible insects are a potentially less burdensome source of proteins on the environment than livestock for a majority of rural consumers. Hence, edible insects are a timely idea to address the challenges of the supply side to sustainably meet an increasing demand for food. The objective of this paper is twofold. The first is to identify and compare rural-households’ intentions to consume insect-based foods among households drawn from two regions in Kenya—one where consumption of insects is common and the other where the practice is uncommon. The second is to explore consumers’ trust in sources of information regarding quality and appropriateness of food items. The study employed an extended theory of planned behaviour and involved 432 participants. Results indicate that rural households have positive intentions to consume insect-based foods and those intentions are higher for individuals who are more familiar with the practice. Results also show that information sources from industry are more trusted than those from the media. Further, the study revealed that control variables such as perceived availability of insect-based foods and their level of fit with the culinary practices have a higher influence on consumption intentions than general attitudes. In addition, age of the respondent, gender, household size and level of formal education, significantly influence the consumption intentions. The study discusses the implications of these findings in the development of sustainable agri-food systems.  相似文献   

Volume index     

Georg Erhardt  Ignacy Misztal  Lawrence R Schaeffer  Henner Simianer  Julius Van Der Werf 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》2004,121(6):no-no

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The role of immunostimulation in the development of postweaning multisystemic wasting syndrome in pigs under field conditions          下载免费PDF全文

Julius Haruna  Paul Hanna  Daniel Hurnik  Basil Ikede  Lisa Miller    Carmencita Yason 《Canadian journal of veterinary research》2006,70(4):269-276

We evaluated the effects of immunostimulation in the development of postweaning multisystemic wasting syndrome (PMWS) in 930 pigs 53 to 54 d old in a grower/finisher barn with a history of PMWS. The pigs were allocated to 5 treatment groups: 4 groups received a single intramuscular injection of RespiSure-ONE (a commercial Mycoplasma hyopneumoniae vaccine; n = 197), Emulsigen (an oil-based adjuvant; n = 172), Alhydrogel (an aluminum-hydroxide-based adjuvant; n = 172), or physiologic saline (n = 218); 1 group received no treatment (n = 171). Pigs affected by PMWS were found in all the groups. Antigen to Porcine circovirus type 2 (PCV-2) was detected by immunohistochemical testing within lesions of mesenteric lymph node, spleen, Peyer's patch, and lung of affected pigs. There was no significant difference in the incidence of PMWS among the groups. The findings indicate that immunostimulation did not influence the expression of PMWS in this study. Thus, routine vaccination against swine diseases may not significantly contribute to the occurrence of PMWS under field conditions.  相似文献   

Acknowledgements to referees     

Asko Mäki-Tanila  Georg Erhardt  Ignacy Misztal  Larry Schaeffer  Henner Simianer  Julius van der Werf 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》2007,124(6):390-390

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金沙滩林场立地类型划分和树种选择     

郭学斌  栾胜强 《山西林业科技》1997,(2):14-18

通过对金沙滩林场土壤、植被的详细调查和定点试验，认为土壤水分是影响树木成活及生长的主要因子，并以土壤水分为标准，把该林场划分为７个立地类型，针对各种立地类型的特点，提出了不同区域适宜栽植的树种和林种  相似文献   

Detection of peste des petits ruminants virus in formalin-fixed tissues     

Kihu  Simon Mwangi  Gitao  George Chege  Bebora  Lily Caroline  Njenga  Munene John  Wairire  Gidraph Gachunga  Maingi  Ndichu  Wahome  Raphael Githaiga  Oyugi  Julius Otieno  Lutomia  Ernest 《Tropical animal health and production》2015,47(1):247-249

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Epirubicin in the adjuvant treatment of splenic hemangiosarcoma in dogs: 59 cases (1997-2004)     

Kim SE  Liptak JM  Gall TT  Monteith GJ  Woods JP 《Journal of the American Veterinary Medical Association》2007,231(10):1550-1557

OBJECTIVE: To determine the efficacy and toxic effects of epirubicin for the adjuvant treatment of dogs with splenic hemangiosarcoma and identify prognostic factors. DESIGN: Retrospective case series. ANIMALS: 59 client-owned dogs that underwent splenectomy for splenic hemangiosarcoma treated with or without epirubicin. PROCEDURES: Medical records were examined for signalment, clinical signs, diagnostic and surgical findings, and postoperative outcome. For dogs treated with epirubicin, dose numbers, intervals, and reductions and type and severity of toxic effects were recorded. Dogs were allotted to 2 groups: splenectomy alone and splenectomy with adjuvant epirubicin treatment. RESULTS: 18 dogs received epirubicin (30 mg/m(2)) every 3 weeks for up to 4 to 6 treatments. Forty-one dogs were treated with splenectomy alone. The overall median survival time was significantly longer in dogs treated with splenectomy and epirubicin (144 days), compared with splenectomy alone (86 days). Median survival time for dogs with stage I disease (345 days) was significantly longer than for dogs with either stage II (93 days) or III disease (68 days). Seven of 18 dogs treated with epirubicin were hospitalized for signs of adverse gastrointestinal effects. Inappetence, long duration of clinical signs, thrombocytopenia, neutrophilia, and high mitotic rate were negative prognostic factors. CONCLUSIONS AND CLINICAL RELEVANCE: Epirubicin may be as efficacious as adjuvant doxorubicin-based protocols, but may result in a higher incidence of adverse gastrointestinal effects. Epirubicin should be considered as an alternative to doxorubicin in dogs with preexisting cardiac disease, as clinical epirubicin cardiotoxicity was not diagnosed in treated dogs.  相似文献   

Market‐led options to scale up legume seeds in developing countries: Experiences from the Tropical Legumes Project     

Jean‐Claude Rubyogo  Essegbemon Akpo  Lucky Omoigui  Gaur Pooran  Sushil Kumar Chaturvedi  Asnake Fikre  Desmae Haile  Ajeigbe Hakeem  Emmanuel Monyo  Stanley Nkalubo  Berhanu Fenta  Papias Binagwa  Michael Kilango  Magdalena Williams  Omari Mponda  David Okello  Mekasha Chichaybelu  Amos Miningou  Joseph Bationo  Dramane Sako  Zoumana Kouyate  Sory Diallo  Richard Oteng‐Frimpong  Julius Yirzagla  Teryima Iorlamen  Umar Garba  Haruna Mohammed  Chris Ojiewo  Alpha Kamara  Rajeev Varshney  Shyam Narayan Nigam  Pasupuleti Janila  Hajisaheb Lalasab Nadaf  Sylvia Kalemera 《Plant Breeding》2019,138(4):474-486

There are several hurdles to ensure sustainable seed production and consistent flow of improved legume varieties in sub‐Saharan Africa (SSA) and South Asia (SA). The unreliable demand, autogamous nature of most of the grain legumes, and slow variety replacement rate by smallholder farmers do not provide strong incentive for private seed companies to invest in legume seed business. Unless a well thought‐out and comprehensive approach to legume seed delivery is developed, current seed shortages will continue, eroding emerging market opportunities. The experiences reported here are collated through a 10‐year partnership project, the Tropical Legumes in SSA and SA. It fostered innovative public–private partnerships in joint testing of innovative market‐led seed systems, skills and knowledge enhancement, de‐risking private sector initiatives that introduced in new approaches and previously overlooked entities in technology delivery. As new public and private seed companies, individual seed entrepreneurs and farmer organizations emerged, the existing ones enhanced their capacities. This resulted in significant rise in production, availability and accessibility of various seed grades of newly improved and farmer demanded legume varieties in the target countries.  相似文献   

    

Julius Fr?hlich 《Forstwissenschaftliches Centralblatt》1940,62(11):242-245

Ohne Zusammenfassung  相似文献