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Publisher: InfinityPress   (Total: 5 journals)   [Sort by number of followers]

Showing 1 - 5 of 5 Journals sorted alphabetically
Advances in Bioscience and Bioengineering     Open Access   (Followers: 6)
Communications in Applied Sciences     Open Access  
J. of Agriculture and Sustainability     Open Access   (Followers: 4)
J. of Studies in Social Sciences     Open Access   (Followers: 5)
J. of Sustainable Development Studies     Open Access   (Followers: 9)
Journal Cover Journal of Agriculture and Sustainability
  [4 followers]  Follow
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2201-4357
   Published by InfinityPress Homepage  [5 journals]
  • Assessment of the Variability of Soil Properties for OFC Cultivation under
           Minor Irrigation Systems

    • Authors: Pradeep Gajanayake, Y.G.D.P. Wijewardana, S.K.D. Wijesinghe, M.I.M. Mowjood, L.W. Galagedara
      Abstract: Combined paddy and other field crops (OFC) fields are unique from other wetland or upland soils, because of seasonal alternation of wetting and drying conditions resulting anaerobic and aerobic conditions. Therefore, objective of this study was to assess spatio-temporal variation of soil properties in paddy fields under minor tanks with respect to OFC cultivation. Soil samples were collected at two soil depths from 24 locations covering the entire command area of the Bayawa Minor Irrigation Tank (MIT), Sri Lanka. Soil properties were analyzed and mapped using Arc GIS. Hardpan depth (HPD) was also determined by collecting undisturbed core samples at 0, 15, 25, 30, 45 and 60 cm depths from the same locations Statistical analysis was done to identify spatio-temporal variability of each property. Results revealed that, Bayawa command area showed low coefficient of variation (CV) for pH and bulk density, but high CV for saturated hydraulic conductivity (Ks). HPD was found to be varied in each section within the effective root zone. Overall, low Ks, high clay content, high field capacity, poor drainage and the presence of hardpan are major obstacles to introduce OFC. Therefore, introduction of site specific OFC by considering the variability of soil properties is very important for sustainability of the MIT system.
      PubDate: 2017-11-13
      Issue No: Vol. 11 (2017)
  • Resource Use and Productivity Among Rain-Fed and Irrigated Irish Potato
           Producers in Plateau State, Nigeria

    • Authors: Panwal Ephraim Fomyol
      Abstract: Although Potato is grown in all the three zone of Plateau State, reports indicate that only part of the central and northern zones produce substantial quantities for consumption within the zones and sale to others. Its importance to plateau State its people are evidenced in the number of producers involved, land area cropped, quantities realised and valued. This study which lasted from October, 2004 to September, 2005 was carried out to evaluate the resources use and productivity among rain-fed and irrigated Irish potato producers in Plateau state. A questionnaire was designed to collect data from 90 randomly selected irrigated irish potato producers and 90 randomly selected Irish potato producers in the study area, making a total sample size of 180 Irish potato producers (respondent) that were surveyed. The data were analysed using regression analysis model. Also an average comparative cost-returns analysis was used to compare the costs and return of the rain-fed and irrigated Irish potato producers. The major findings of the result for rain-fed shows that the resources used have 705 influence on productivity with fc>Ft (23.8823>2.02). This therefore implies that we should reject the three hypotheses which seem to accept that:- • The Socio-economic characteristics of producers do not influence resources efficiency and productivity. • There is no significant difference in resource use and productivity between rain-fed and irrigated Irish producers. • There is no significant difference between rain-fed and irrigated Irish potato production. for the irrigated Irish potato production, the result of the findings show that the resources used ha 95% influence on Irish potato productivity, with high value of Fc=282.373. the overall model is statistically significant, hence we are to reject the three hypotheses as stated above. From the findings, we therefore recommend among others a realistic and aggressive Irish potato programme which will promote all season production through rain-fed and irrigated Irish potato production. The research therefore solve a range of problems in Irish potato production
      PubDate: 2017-11-03
      Issue No: Vol. 11 (2017)
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
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Fax: +00 44 (0)131 4513327
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