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Dormant oil is used on woody plants during the dormant season. Originally used cruder oils were used, but the term now refers to the time of application. Summer oil or foliar oil refers to its use on plants when foliage is present, for which cruder grades could not be used. The US EPA recognises hundreds of grades of mineral oil. [1]
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Predictive dormancy occurs when an organism enters a dormant phase before the onset of adverse conditions. For example, photoperiod and decreasing temperature are used by many plants to predict the onset of winter. Consequential dormancy occurs when organisms enter a dormant phase after adverse conditions have arisen. This is commonly found in ...
An obvious solution is to reduce or eliminate pesticide use, but where pest pressure is high (e.g. with many tropical crops), this is not always feasible: but various measures can be taken, including better timing, application and the use of less deleterious products such as biopesticides.
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Well completion is the process of making a well ready for production (or injection) after drilling operations. This principally involves preparing the bottom of the hole to the required specifications, running in the production tubing and its associated down hole tools as well as perforating and stimulating as required.
Galeopsis bifida is an annual plant native to Europe and Asia but now found in Canada and the northeastern, midwestern parts of the United States.It has many common names such as bifid hemp-nettle, [2] split-lip hemp-nettle, common hemp-nettle, [2] and large-flowered hemp-nettle. [2]
Injection well used for enhanced oil recovery. Enhanced oil recovery (abbreviated EOR), also called tertiary recovery, is the extraction of crude oil from an oil field that cannot be extracted otherwise. Whereas primary and secondary recovery techniques rely on the pressure differential between the surface and the underground well, enhanced oil ...