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The Universal Soil Loss Equation (USLE) is a widely used mathematical model that describes soil erosion processes. [1]Erosion models play critical roles in soil and water resource conservation and nonpoint source pollution assessments, including: sediment load assessment and inventory, conservation planning and design for sediment control, and for the advancement of scientific understanding.
The PLP is a set of loss figures, one for each link in the postharvest chain. Each PLP figure is the average of all those data available in the scientific literature for a particular crop (which include both quantitative weight loss figures and ‘informed guestimates’), under a particular climate, and at a particular scale of agriculture.
In integrated pest management, the economic threshold is the density of a pest at which a control treatment will provide an economic return. [1]An economic Injuryis the insect's population level or extent of crop damage at which the value of the crop destroyed exceeds the cost of controlling the pest. [2]
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Resultant damage can include splitting of fruits, internal bruising, superficial grazing, and crushing of soft produce. Poor handling can thus result in development of entry points for moulds and bacteria, increased water loss, and an increased respiration rate. [9] [10] Produce can be damaged when exposed to extremes of temperature.
In climate engineering, the residue-to-product ratio (RPR) is used to calculate how much unused crop residue might be left after harvesting a particular crop. Also called the residue yield or straw/grain ratio, the equation takes the mass of residue divided by the mass of crop produced, and the result is dimensionless.
Feb. 17—HARLINGEN — Valley citrus has been battered and bruised over the last year, and for some growers, the extreme cold may put an end to hopes of big profits this season. "I told somebody ...
The lawsuit also claims the South Carolina officials were involved in a conspiracy to violate the farmer’s civil rights.