نتایج جستجو برای: r 2002 seagull influence on soil properties
تعداد نتایج: 9202897 فیلتر نتایج به سال:
Routine soil surveys determine many soil properties but soil drainage and soil moisture indicators (soil permeability, hydrologic soil group, etc.) are often the most relevant for agro-environmental purposes. They influence in-field crop yield and affect several environmental processes, i.e., soil erosion, nutrient and pesticide transport by runoff water and leaching, nitrification, and greenho...
after the soviet union dissolution, a chaotic period was begun in the russia. russia lost its glory and felt disgrace. the first group of elites came to power under yeltsin; they tried to re-define russia’s identity as a european country and build a foreign policy on this baseline. therefore russia tried to become closer with the west especially with the u.s. according to their view the sovie...
Use of electromagnetic induction (EMI) sensors along with geospatial modeling provide a better opportunity for understanding spatial distribution of soil properties and crop yields on a landscape level and to map site-specific management zones. The first objective of this research was to evaluate the relationship of crop yields, soil properties and apparent electrical conductivity (ECa) at diff...
Field capacity (FC) and permanent wilting point (PWP) are important factors affecting irrigation scheduling and field management. FC and PWP can be estimated from some of the soil physical and chemical properties. Pressure Plate apparatus is usually used for determination of FC and PWP, but this is a time-consuming and laborious procedure besides, the apparatus may not be available in many labo...
gregate formation (Horn, 1990; Zhang, 1994). Understanding of mechanical properties of aggregates is cruAggregate properties determine the macroscale structural condicial to explain the macroscale functions of soil for plant tion of the soil. Understanding of impacts of no-till and traditional growth (DeFreitas et al., 1996). agricultural practices on the mechanical properties of aggregates is ...
World food security is under challenge to a great extent due to effects of climate change, continued population growth and resource-depleting practices on agriculture (IAASTD, 2009). Presently poor farmers use either organic manure or inorganic fertilizers (Mando et al., 2005; Topoliantz et al., 2005) for maintaining soil fertility as they cannot afford to apply fertilizers as a nutrient source...
Veterinary antibiotics such as oxytetracycline (OTC) increasingly are found in the environment and often come into direct contact with soils via the release of animal wastes. Oxytetracycline is known to sorb strongly to soils by interaction with soil organic matter, clay minerals, and metal oxides. However, current knowledge of the influence of soil properties on OTC sorption is limited, as is ...
ACCEPTED FOR AN ORAL PRESENTATION Park A, Lee G, Meenaghan N, Lee TH, Seagull FJ (2008) Patients benefit while surgeons suffer: an impending epidemic, Annual meeting of American College of Surgeons (ACS) Lee G, Lee TH, Dexter DJ, Godinez C, Meenaghan N, Park AE (2008) Joint kinetic data augments traditional biomechanical approach to assess the ergonomics of laparoscopic camera assistants, Annua...
Field capacity (FC) and permanent wilting point (PWP) are important factors affecting irrigation scheduling and field management. FC and PWP can be estimated from some of the soil physical and chemical properties. Pressure Plate apparatus is usually used for determination of FC and PWP, but this is a time-consuming and laborious procedure besides, the apparatus may not be available in many labo...
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