The bio-assessment studies show a clear relationship between increased water pollution and increased agricultural and urban land use . Nationwide, agricultural non-point pollution is the chief impediment to achieving national water quality objectives . The EPA lists the chief components of these non-point source agricultural pollutants as nitrogen and phosphorus from fertilizers, pesticides, animal sources, soil erosion, …
Tag Archives: agriculture
Any discharger that could affect water quality must obtain a permit to pollute
Exclusion discourse placed Chinese as more efficient than whites, whose “manhood” is wasted in repetitive tasks such as mining and service work. Lye shows that the Chinese were for this reason seen as more “modern,” more suited to a future of proletarian work. The Anglo-Saxon’s supposedly large, violent, inefficient body had been well adapted to …
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The mysterious decline of Chinese rice provides the possibility for the rise of American Wheat
Our results suggest that the yield effects of crop rotational histories in cotton are relatively modest in magnitude: the posterior means for effects of any specific crop were mostly under 15%. However, given the tight profit margins of commercial agriculture, a 15% change in yield could translate into a far greater percentage change in profit, …
Studies have shown that people consume less water at higher prices
The Southern California Comprehensive Water Reclamation and Reuse Study , for example, provides a comprehensive assessment of existing reuse and reuse potential in Southern California.The following is a review of key moments in history that changed water policy, from passage of water rights legislation to the voter approval of the State Water Project . Although …
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Higher real rates cause the demand for primary goods to fall
Accordingly, foreign monetary authorities will underestimate their own money demands, and their policy will turn out to be more restrictive than desired. Foreign monetary independence from U. S. policies is lost. A second possibility is that foreign authorities recognize unanticipated shifts in U. S. monetary policy quickly. They may act to maintain the value of …
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This paper begins with a review of regional impacts of climate change to California agriculture
Prior to Smith and Mendelsohn , several notable studies examined the state of the knowledge of climate assessments at the US level . In particular, Lewandrowski and Schimmelpfennig integrate the knowledge from both programming and econometric studies of the agricultural sector. Other reviews have focused on the technical details of the different modeling approaches without discussing …
This may be due to the deviation of linearity of the %AB and F530 metric at high biomass
Sobal sensitivity analysis utilizing polynomial regression like- wise determined FBS, MgSO4, and L-Phenylalanine were the most explanatory components when taking component-component interactions into account. Focusing on optimizing only those components might bring further improvements, which is now feasible because fewer experiments were needed to arrive at this conclusion. Another issue was that the HND algorithm …
The most common formats for these tests are the ELISA and lateral flow assay
The most straightforward approach to vaccine development would be based on inactivated or attenuated strains of SARSCoV-2, but the production of sufficient material generally takes longer than is the case for subunit vaccines, high-level containment would be necessary to grow the virus before attenuation/inactivation, and the candidates would carry a risk of reacquired virulence . For subunit …
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Panel data studies on farm profits are not able to capture adaptation even implicitly
The model even projects a reduction in annual groundwater pumping compared to the historical period until mid-century under some scenarios. Unfortunately, this positive effect of switching to drip irrigation is lost toward the end of the century as higher temperatures drive up crop water demands.One of the earliest econometric evaluations on the impacts of human-induced …
The lack of progress on agriculture was blocking any kind of trade agreement from being reached
After a series of political scandals, the LDP lost control of the upper house of the Diet, and with it, the desire for agricultural policy reform. In order to position itself for the 1990 elections, the LDP promised farmers that, “not one single grain of foreign rice would be permitted to enter the Japanese market” …