توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Comparison of biodiversity with Shannon and Simpson indices in conventional rice (Oryza sativa L.) and organic rice–duck farming
اطلاعات انتشار: کنفرانس بین المللی دانش سنتی برای حفاظت از تنوع زیستی، سال
تعداد صفحات: ۵
Over the last quarter of the 20th century, dramatic declines in both rangeand abundance of many species associated with farmland (Liu et al., 2011).The use of chemical pesticides used in agriculture in addition water pollutionresources reduce biodiversity (including insects, plants, fungi, bacteria andanimals) and can cause illness in humans (Bi et al., 2009). Farming systemssuch as organic farming are now seen by many as a potential solution tothis continued loss of biodiversity (Hole et al., 2005). For example, rice–duck(organic farming) mutualism is one form of ecological engineering which makesuse of the symbiotic relationship between rice and ducks to more effectivelyutilize materials, reduce chemical fertilizer and pesticide inputs, increaseproduct safety and overall productivity and decrease the pollutants dischargedfrom rice–fields (Xi and Qin., 2009).<\div>

۲Investigation of some insects density in organic rice–duck farming
اطلاعات انتشار: کنفرانس بین المللی دانش سنتی برای حفاظت از تنوع زیستی، سال
تعداد صفحات: ۴
Biodiversity is one of the most important resources on earth, and human activitiesendanger the total number of hole wight species (Rahmann, 2011). Large numbersof those are already extinct or close to being erased. Over the last quarter of the 20thcentury, dramatic declines in both range and abundance of many species associatedwith farmland (Liu et al., 2011). The use of chemical pesticides used in agriculture inaddition water pollution resources reduce biodiversity (insects, plants, fungi, bacteria andanimals) and can cause illness in humans. Farming systems such as organic farming arenow seen by many as a potential solution to this continued loss of biodiversity (Bi et al.,2009). For example, rice–duck (organic farming) mutualism, as a indigenous knowledge,is one form of ecological engineering which makes use of the symbiotic relationshipbetween rice and ducks to more effectively utilize materials, reduce chemical fertilizerand pesticide inputs, increase product safety and overall productivity and decrease thepollutants discharged from rice–fields (Xi and Qin., 2009). The objective of this studywas compare insects density in organic rice–duck farming under field conditions innorthern of Iran.<\div>

۳The role of duck in biocontrol of weeds in organic rice–duck farming
اطلاعات انتشار: کنفرانس بین المللی دانش سنتی برای حفاظت از تنوع زیستی، سال
تعداد صفحات: ۵
Competition between the undesired plants and the crop was to be avoided ifreasonable yields were to be achieved. Weeds were removed first by handand then mechanically when new farming tools were developed (Le Baron,1991). During the 1950s, the first hormonal herbicides were developed;from that moment onwards, the spectrum of molecules known to havedeleterious physiological activity on weeds has increased dramatically andso has the effectiveness of new herbicides (Mortimer and Maxwell, 1994).The introduction of herbicides in agricultural systems, and their efficiencyin maintaining crops relatively free from competition, led to the idea ofweed eradication. It was soon evident, however, that weed eradication wasnot a reasonable objective and that infestation levels had not decreasedto the extent that had been expected. In fact, continuous use of herbicideled to the appearance of resistant biotypes of weeds and contaminationof the environment in Australia, Europe, and North America (Hammond,2010).<\div>
نمایش نتایج ۱ تا ۳ از میان ۳ نتیجه