Zobrazeno 1 - 10
of 16
pro vyhledávání: '"J. H. Moolman"'
Publikováno v:
Soil Science Society of America Journal. 61:1627-1633
The EM-38 electromagnetic induction sensor of Geonics Ltd. (Canada) is a most useful instrument for rapid field identification and mapping of soil salinity. Interpretation of instrument measurements in terms of meaningful parameters of soil salinity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::984ec89e17d902ef88896757b7f46d12
https://doi.org/10.2136/sssaj1997.03615995006100060013x
https://doi.org/10.2136/sssaj1997.03615995006100060013x
Publikováno v:
Hydrogeology Journal. 5:98-108
The water-distribution system of the Breede River Irrigation Scheme, South Africa, consists of the river itself, a series of canals, and various pumping schemes. However, the river not only conveys water to the various farms, but it also acts a a hug
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6055f1f980958649781dea5b5473d8cc
https://doi.org/10.1007/s100400050126
https://doi.org/10.1007/s100400050126
Publikováno v:
South African Journal of Plant and Soil. 13:110-114
A commercially available salinity sensor (model EM-38 of Geonics Ltd., Canada) has been developed for diagnosing and quantifying soil salinity in the field. There is a need, however, to calibrate the instrument reading against a more commonly used me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bda512226fecb206a4db014ef949810c
https://doi.org/10.1080/02571862.1996.10634385
https://doi.org/10.1080/02571862.1996.10634385
Autor:
P. A. Myburgh, J. H. Moolman
Publikováno v:
South African Journal of Plant and Soil. 10:17-21
Waterlogged conditions in hydromorphic soils during spring cause low temperatures which may restrict grapevine performance. Ridging is a soil preparation method that can improve internal drainage in the root zone. Temperature measurements showed that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c7cb0214eb5112f0df4b5656bffde72
https://doi.org/10.1080/02571862.1993.10634637
https://doi.org/10.1080/02571862.1993.10634637
Autor:
P. A. Myburgh, J. H. Moolman
Publikováno v:
South African Journal of Plant and Soil. 8:189-193
Waterlogged soil conditions during early spring can result in poor grapevine performance. In this study the effect of ridging as a method of soil preparation on the depth to the water table, soil air composition and vine reaction, as indicated by lea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e82098c8e4523b152cddbc6801f9900
https://doi.org/10.1080/02571862.1991.10634832
https://doi.org/10.1080/02571862.1991.10634832
Autor:
P. A. Myburgh, J. H. Moolman
Publikováno v:
South African Journal of Plant and Soil. 8:184-188
In a field trial conducted in a vineyard on a low-lying hydromorphic soil, it was established that ridging increased the depth from the soil surface to the water table. Ridging did not lower the level of the water table, but increased the soil depth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43f921ecbdddffd789c0fb7efef6ec69
https://doi.org/10.1080/02571862.1991.10634831
https://doi.org/10.1080/02571862.1991.10634831
Autor:
K. D. Fuller, J. H. Moolman
Publikováno v:
South African Journal of Plant and Soil. 6:64-69
Hydraulic properties of three soils from the western Cape and two from the eastern Cape were studied. Water content (θ) data, obtained during drainage of field plots were used to estimate soil hydraulic conductivity [K(θ)] using five methods based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b53b09aade9b1f667f3437df9809082f
https://doi.org/10.1080/02571862.1989.10634482
https://doi.org/10.1080/02571862.1989.10634482
Autor:
J. H. Moolman
Publikováno v:
South African Journal of Plant and Soil. 2:72-78
The variability of the soluble salt content and the textural composition of the soil were investigated in a 28-ha sub-catchment of the Ecca River, a tributary of the Great Fish River. The frequency distribution of the soluble salts in the 0–300 mm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ddc84ea2e0b51b8891167613c055ab7
https://doi.org/10.1080/02571862.1985.10634140
https://doi.org/10.1080/02571862.1985.10634140
Autor:
J. H. Moolman
Publikováno v:
South African Journal of Plant and Soil. 5:173-181
The variability of soil sorptivity within a semi-arid catchment was investigated on a macro- (28 ha) and microscale (16 m2). In the macroscale study, sorptivity was measured at 176 sites using a falling hydraulic head technique. The mean sorptivity o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89993e4bc1bd3ed538acfd642cb245ab
https://doi.org/10.1080/02571862.1988.10634980
https://doi.org/10.1080/02571862.1988.10634980
Autor:
J. H. Moolman, D. J. Beukes
Publikováno v:
Irrigation Science. 2:33-47
The unsaturated flow and unsaturated chemistry submodels of a conceptual computer simulation model, developed at the United States Bureau of Reclamation to predict water and salt behaviour in soils, were tested under field conditions. The comparison
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e69cd924fe0ca239a2893d951b0ba1d
https://doi.org/10.1007/bf00285428
https://doi.org/10.1007/bf00285428