Zobrazeno 1 - 10
of 41
pro vyhledávání: '"K. W. Jaggard"'
Autor:
Fang-Jie Zhao, K. W. Jaggard
Publikováno v:
The Journal of Agricultural Science. 149:305-311
SUMMARYSix field experiments were carried out in eastern England between 2003 and 2005 to test the effect of sulphur (S) fertilizer on the yield of sugar beet (Beta vulgaris L.). The experiments were undertaken at sites where there had previously bee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b39062a5484234577f8160aec3de6964
https://doi.org/10.1017/s0021859610000985
https://doi.org/10.1017/s0021859610000985
Publikováno v:
European Journal of Agronomy. 28:47-56
This study investigated whether nitrogen (N) fertilizer is necessary to maintain the efficiency of sugar beet foliage in late summer or whether the crop can continue to operate effectively on N mineralized from the soil. Three field experiments were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afda1a4d5e71a8e580881e211bb03aed
https://doi.org/10.1016/j.eja.2007.05.001
https://doi.org/10.1016/j.eja.2007.05.001
Publikováno v:
The Journal of Agricultural Science. 145:367-375
SUMMARYSince the 1970s, the delivered sugar yield per hectare has risen at an average annual rate of 0·111 t/ha, while the sugar yield in the official variety trials has increased at an average annual rate of 0·204 t/ha. These increases are usually
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a7fac2ef5c5399a72a17c50fd6c2a6e
https://doi.org/10.1017/s0021859607006922
https://doi.org/10.1017/s0021859607006922
Publikováno v:
Journal of the Indian Society of Remote Sensing. 33:315-321
The present work was aimed to compare the abilities of radar and optical satellite data to estimate crop canopy cover, which is a key component of productivity estimates. Three ERS-1 SAR images were obtained of East Anglia (UK) in 1995 and one ERS-2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a04a17ee1cac411bdbdc81c9821407b2
https://doi.org/10.1007/bf02990051
https://doi.org/10.1007/bf02990051
Publikováno v:
Agriculture, Ecosystems & Environment. 107:341-358
J. Tzilivakis, K. Jaggard, K. A. Lewis, M. May, and D. J. Warner, ‘Environmental impact and economic assessment for UK sugar beet production systems’, Agriculture, Ecosystems & Environment, Vol. 107 (4): 341-358, first published online 19 Februar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::942d68430c151d094071e1e81387ed4e
https://doi.org/10.1016/j.agee.2004.12.016
https://doi.org/10.1016/j.agee.2004.12.016
Publikováno v:
International Journal of Remote Sensing. 24:1071-1082
This paper reports a comparison of the capabilities of radar and optical satellite sensor data to estimate crop canopy cover, which is a key component of productivity estimates for sugar beet crops. A version of the water-cloud model that had previou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfa31f28f956e4899ebddf65307a9c66
https://doi.org/10.1080/01431160210164262
https://doi.org/10.1080/01431160210164262
Publikováno v:
Climatic Change. 58:93-108
The impact of future climate change on sugar beet yields is assessed over western Europe using future (2021–2050) climate scenario data from a General Circulation Model (GCM) and the Broom's Barn simulation model of rain-fed crop growth and yield.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f098137dd73c434822a49680000f0051
https://doi.org/10.1023/a:1023420102432
https://doi.org/10.1023/a:1023420102432
Publikováno v:
The Journal of Agricultural Science. 139:129-138
The effects of supplying the fertilizer nitrogen (N) as a recommended quantity of ammonium nitrate or as a commonly used dose of poultry manure on yield of sugarbeet infected with Beet mild yellowing virus (BMYV) or Beet yellows virus (BYV) were stud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5de5f39f92614e807d14b65f4073cad
https://doi.org/10.1017/s002185960200254x
https://doi.org/10.1017/s002185960200254x
Autor:
K. W. Jaggard, R. K. Scott
Publikováno v:
The Journal of Agricultural Science. 134:341-352
This is part of the text of an invited lecture given by R. K. Scott on 1 December 1998, the first in a series to commemorate the memory of R. Hull, the first Director of Broom's Barn. Dr Hull devoted his career to the science underpinning the homegro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a409a941077376401e4290b664b8304
https://doi.org/10.1017/s0021859699007832
https://doi.org/10.1017/s0021859699007832
Publikováno v:
The Journal of Agricultural Science. 130:337-343
Drought stress and virus yellows disease are two of the major problems of sugarbeet crop production in the UK. We have calculated the annual national drought losses from 1980 to 1995 by using long term data sets for two sites (IACR-Broom's Barn, Suff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78d358d17a6ffbe282deb952519356ad
https://doi.org/10.1017/s0021859698005371
https://doi.org/10.1017/s0021859698005371