Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Keith D Shepherd"'
Autor:
Gifty E Acquah, Javier Hernandez-Allica, Cathy L Thomas, Sarah J Dunham, Erick K Towett, Lee B Drake, Keith D Shepherd, Steve P McGrath, Stephan M Haefele
Publikováno v:
PLoS ONE, Vol 17, Iss 1, p e0262460 (2022)
With the increasing popularity of local blending of fertilisers, the fertiliser industry faces issues regarding quality control and fertiliser adulteration. Another problem is the contamination of fertilisers with trace elements that have been shown
Externí odkaz:
https://doaj.org/article/74ef375dad904f1d8f20f73dbece48a2
Publikováno v:
PLoS ONE, Vol 17, Iss 2, p e0262754 (2022)
Adept use of fertilizers is critical if sustainable development goal two of zero hunger and agroecosystem resilience are to be achieved for African smallholder agroecosystems. These heterogeneous systems are characterized by poor soil health mainly a
Externí odkaz:
https://doaj.org/article/71620b61cd9e4479bf6143e9ca77f4c8
Publikováno v:
PLoS Biology, Vol 19, Iss 11, p e3001441 (2021)
Open access, high-resolution soil property maps have been created for Africa at 30 m resolution, using machine learning trained on over 100,000 analysed soil samples. Combined with other field-level information, iSDAsoil enables the possibility of si
Externí odkaz:
https://doaj.org/article/ad239747cb6f486ba64169219f0f3fa5
Publikováno v:
PLoS ONE, Vol 15, Iss 6, p e0234213 (2020)
Agricultural development projects have a poor track record of success mainly due to risks and uncertainty involved in implementation. Cost-benefit analysis can help allocate resources more effectively, but scarcity of data and high uncertainty makes
Externí odkaz:
https://doaj.org/article/287b7920d9434db68df55290e773f31c
Autor:
Erick K Towett, Lee B Drake, Gifty E Acquah, Stephan M Haefele, Steve P McGrath, Keith D Shepherd
Publikováno v:
PLoS ONE, Vol 15, Iss 12, p e0242821 (2020)
Portable X-ray fluorescence (pXRF) and Diffuse Reflectance Fourier Transformed Mid-Infrared (DRIFT-MIR) spectroscopy are rapid and cost-effective analytical tools for material characterization. Here, we provide an assessment of these methods for the
Externí odkaz:
https://doaj.org/article/fdb602bb95104d0e9979d7774ecf89bf
Autor:
Tomislav Hengl, Gerard B M Heuvelink, Bas Kempen, Johan G B Leenaars, Markus G Walsh, Keith D Shepherd, Andrew Sila, Robert A MacMillan, Jorge Mendes de Jesus, Lulseged Tamene, Jérôme E Tondoh
Publikováno v:
PLoS ONE, Vol 10, Iss 6, p e0125814 (2015)
80% of arable land in Africa has low soil fertility and suffers from physical soil problems. Additionally, significant amounts of nutrients are lost every year due to unsustainable soil management practices. This is partially the result of insufficie
Externí odkaz:
https://doaj.org/article/5060dccad0bd44989be3d928e1db2fe3
Autor:
Keith D. Shepherd, Rich Ferguson, David Hoover, Fenny van Egmond, Jonathan Sanderman, Yufeng Ge
Publikováno v:
Soil Security, Vol 7, Iss , Pp 100061- (2022)
There is growing global interest in the potential for soil reflectance spectroscopy to fill an urgent need for more data on soil properties for improved decision-making on soil security at local to global scales. This is driven by the capability of s
Externí odkaz:
https://doaj.org/article/7c23da923c5f4d44b444e77d1eba7970
Autor:
Bertin Takoutsing, Gerard B. M. Heuvelink, Jetse J. Stoorvogel, Keith D. Shepherd, Ermias Aynekulu
Publikováno v:
European Journal of Soil Science 73 (2022) 2
European Journal of Soil Science, 73(2)
European Journal of Soil Science, 73(2)
Digital soil mapping (DSM) approaches provide soil information by utilising the relationship between soil properties and environmental variables. Calibration of DSM models requires measurements that may often have substantial measurement errors which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf51332168fcba746a382bf0a48fe360
https://research.wur.nl/en/publications/accounting-for-analytical-and-proximal-soil-sensing-errors-in-dig
https://research.wur.nl/en/publications/accounting-for-analytical-and-proximal-soil-sensing-errors-in-dig
Autor:
Jonah M. Prout, Keith D. Shepherd, Steve P. McGrath, Guy J. D. Kirk, Kirsty L. Hassall, Stephan M. Haefele
Publikováno v:
Scientific reports. 12(1)
Realistic targets for soil organic carbon (SOC) concentrations are needed, accounting for differences between soils and land uses. We assess the use of SOC/clay ratio for this purpose by comparing changes over time in (a) the National Soil Inventory
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63ae19aeac5b28f0bb7e0bc6dbc245ef
https://pubmed.ncbi.nlm.nih.gov/35338205
https://pubmed.ncbi.nlm.nih.gov/35338205
Autor:
Gifty E. Acquah, Javier Hernandez-Allica, Cathy L. Thomas, Sarah J. Dunham, Erick K. Towett, Lee B. Drake, Keith D. Shepherd, Steve P. McGrath, Stephan M. Haefele
Publikováno v:
PLoS ONE
PLoS ONE, Vol 17, Iss 1 (2022)
PLoS ONE, Vol 17, Iss 1, p e0262460 (2022)
PLoS ONE, Vol 17, Iss 1 (2022)
PLoS ONE, Vol 17, Iss 1, p e0262460 (2022)
With the increasing popularity of local blending of fertilisers, the fertiliser industry faces issues regarding quality control and fertiliser adulteration. Another problem is the contamination of fertilisers with trace elements that have been shown
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78870a56ff8a1003f0289cea14257b39
https://pubmed.ncbi.nlm.nih.gov/35015770
https://pubmed.ncbi.nlm.nih.gov/35015770