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
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Predicting the slow decline of root lesion nematodes (Pratylenchus thornei) during host-free fallows to improve farm management decisions
چکیده انگلیسی
Dynamic populations of P. thornei existed within the upper layers (<0.6 m) of the soil and these declined at a rate that could be described by the negative exponential model Y = ae−bt. The time taken for a population to decline was dependent on the initial population density at harvest of the previous host crop. Generally, between 300-600 days of host-free fallow was required to reduce a moderately high initial population of 80 P. thornei/cm3 soil to the damage threshold of 2 P. thornei/cm3. The rate of decline varied between soil layers, particularly in the surface layer (0-0.15 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
نویسندگان
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