کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5761281 | 1624433 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Predicting the slow decline of root lesion nematodes (Pratylenchus thornei) during host-free fallows to improve farm management decisions
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Dynamic populations of P. thornei existed within the upper layers (<0.6Â m) of the soil and these declined at a rate that could be described by the negative exponential model YÂ =Â aeâbt. The time taken for a population to decline was dependent on the initial population density at harvest of the previous host crop. Generally, between 300-600Â days of host-free fallow was required to reduce a moderately high initial population of 80âP. thornei/cm3 soil to the damage threshold of 2âP. thornei/cm3. The rate of decline varied between soil layers, particularly in the surface layer (0-0.15Â m), but remained constant from year to year for each layer. There was no interaction between year and soil layer. Knowing the expected rate of decline of a P. thornei population at the start of a fallow allows better management of the crop rotation to ensure populations do not continue to rise and thus reduce the yield potential of future crops.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Agronomy - Volume 91, November 2017, Pages 44-53
Journal: European Journal of Agronomy - Volume 91, November 2017, Pages 44-53
نویسندگان
J.P.M. Whish, J.P. Thompson, T.G Clewett, J. Wood, H.E. Rostad,