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Soil Parameter Mapping and Ad Hoc Power Analysis to Increase Blocking Efficiency Prior to Establishing a Long-Term Field Experiment
المؤلفون المشاركون
Bary, Andy I.
Collins, Doug
Benedict, Chris
Cogger, Craig G.
المصدر
العدد
المجلد 2015، العدد 2015 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-8، 8ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2015-07-13
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الطب البشري
تكنولوجيا المعلومات وعلم الحاسوب
الملخص EN
The spatial heterogeneity of soil and weed populations poses a challenge to researchers.
Unlike aboveground variability, below-ground variability is more difficult to discern without a strategic soil sampling pattern.
While blocking is commonly used to control environmental variation, this strategy is rarely informed by data about current soil conditions.
Fifty georeferenced sites were located in a 0.65 ha area prior to establishing a long-term field experiment.
Soil organic matter (OM) and weed seed bank populations were analyzed at each site and the spatial structure was modeled with semivariograms and interpolated with kriging to map the surface.
These maps were used to formulate three strategic blocking patterns and the efficiency of each pattern was compared to a completely randomized design and a west to east model not informed by soil variability.
Compared to OM, weeds were more variable across the landscape and had a shorter range of autocorrelation, and models to increase blocking efficiency resulted in less increase in power.
Weeds and OM were not correlated, so no model examined improved power equally for both parameters.
Compared to the west to east blocking pattern, the final blocking pattern chosen resulted in a 7-fold increase in power for OM and a 36% increase in power for weeds.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Collins, Doug& Benedict, Chris& Bary, Andy I.& Cogger, Craig G.. 2015. Soil Parameter Mapping and Ad Hoc Power Analysis to Increase Blocking Efficiency Prior to Establishing a Long-Term Field Experiment. The Scientific World Journal،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1078558
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Collins, Doug…[et al.]. Soil Parameter Mapping and Ad Hoc Power Analysis to Increase Blocking Efficiency Prior to Establishing a Long-Term Field Experiment. The Scientific World Journal No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1078558
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Collins, Doug& Benedict, Chris& Bary, Andy I.& Cogger, Craig G.. Soil Parameter Mapping and Ad Hoc Power Analysis to Increase Blocking Efficiency Prior to Establishing a Long-Term Field Experiment. The Scientific World Journal. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1078558
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1078558
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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