Category: Commercial Grow
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Ecological diversity can function at multiple taxonomic and spatial scales
Similar to demeaning of the dependent variable, this method uses only the variation in the data that is not explained by differences in pesti- evaluate if crop diversity, field size, or cropland extent drives in- cide use between years, regions, or crop types . In contrast, the pooled OLS pendent on the classification and taxonomic…
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Cooler regions are characterized by often large positive correlations
As Auffhammer et al. point out, many econometric studies in this literature do not or cannot control for all relevant dimensions of climate as many of them are not measured. At the extreme, the focus is on the impact of a single weather variable. As we have argued above, in the absence of cloud setting, one…
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The impacts of deleterious alleles can be substantial
We predict that modern pathogen resistance alleles may trade off with the maintenance of symbiotic function because plant responses to pathogens and beneficial microbes proceed via similar molecular pathways, as explored in Box 4.Plants could adapt to avoid some of the trade-offs we describe. Plants could evolve more sensitive adaptive plasticity to express robust symbiosis…
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Organic blueberries regularly command a price premium of around two dollars per pound
As global temperatures rise, my findings suggest that firms in outdoor industries like agriculture and construction will have a reduced ability to effectively incentivize their employees’ productivity. This can have large economic consequences. In the $76 billion U.S. specialty crop sector, for instance, harvest labor can account for more than half a farm’s operating costs.This…
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Deeper soil cores were removed from the same hole
Ideally soil microbial processing of organic matter releases sufficient N synchronously with crop N demand to lead to high productivity but with minimal N losses via leaching and denitrification, thereby reducing tradeoffs among yields, water quality, and potentially greenhouse gas emissions. The complex plant and microbial ecological processes related to N cycling are strongly influenced by…
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The benefits of CA can be best achieved through proper use of machinery
It is likely that these situations respond differently to CA compared with other regions where CA has been evaluated in less-intensive systems and under rain-fed situations.One unique aspect of South Asia is the small size of farms, and many farmers cannot afford to own equipment. More service providers and promotion through policies, loans and training…
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Most questions were framed either in Likert-like scales or as a relative response
Searching the EconLit database for “frost” in article titles returns only four results involving actual frost in agriculture, none dealing with temperature altering. A search in the abstracts of papers published by the American Journal of Agricultural Economics results in two papers, neither mentioning air disturbance technologies. The seeming dis-interest in these technologies is even…
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The results showed that age and gender related directly to the levels of stress and anxiety
Different isoenzymes in the reference material and soil may also have contributed to variation in enzyme stability towards fumigation with different pesticides. In order to show whether there is a direct relationship between the activity of any enzyme and its protein concentration in soil enzyme protein concentrations were calculated for acid phosphatase, β-glucosidase and arylsulfatase…
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Displacement ratio is an important factor in the calculation of carbon payback time
Due to the dominant use of HR and Bt crops, pests and weeds have evolved to be increasingly resistant . As a result, farmers may need to resort to earlier pest control practices that rely more on conventional pesticides, hence increasing crops’ freshwater ecotoxicity impact. Early LCA estimates differed with respect to whether corn ethanol…
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Thirty-five concession plots were designated and allocated to farmers of the TFCGA
The histogram for agriculture displays the strongest evidence of bimodality, which indicates persistence in trade flows. These histograms are therefore consistent with the C-statistic results, suggesting more persistence in the composition of agricultural trade, compared to the other two groups. Finally, the results of an additional test for association are reported in Table 6. We…