Category Archives: Hydroponic Horticulture

Some gene families associated with plant detoxifcation and insecticide resistance have rapidly expanded , whereas others have contracted . Finally, gene families associated with immune defense exhibit expansions that may be linked to defense against pathogens and parasitoids that commonly attack exposed herbivores. A substantial proportion of the rapidly evolving gene families include proteins with transposable …

Continue reading “High levels of standing variation are one mechanism for rapid evolutionary change”

This addendum called for the establishment of an Urban Agriculture Program to coordinate public efforts to encourage and develop urban gardens . The legislation also updated city goals for urban agriculture to facilitate incentive programs and resource distribution to urban gardens . In April 2013, the City Administrator’s Office initiated a task force to gather …

Continue reading “Nathan McClintock of Cultivating the Commons was one of these founding members”

While squatting and the politicized aims of land reclamation remain in common, gardens have become an important part of oppositional spatial politics of radical urban movements not necessarily interested in long-term gardening. Today organized garden projects engaged in occupations may have momentary, short-term, or long-term aspirations of access to garden space. Guerilla gardening continues to …

Continue reading “The Hayes Valley Farm was a high profile urban garden located in downtown San Francisco”

While other scholars have traced these tendencies, like that of localism, to libertarian and neoliberal ideologies, this chapter emphasizes the autonomous Marxist and social anarchists framings of strategies towards justice, many originating out of broader global social movements. Alternative economic analyses are complicated and thickened with the increase in the importance of cultural and racial …

Continue reading “Socially acceptable solutions help determine and limit the problem definition of obesity”

Harvey claimed, “if the seeds of revolutionary transformation must be found in the present and if no society can launch upon a task of radical reorganization for which it is not at least partially prepared, then those internal contradictions provide raw material for growing an alternative” . To construct a utopian dialectics that engages concerns …

Continue reading “Historical movements have shaped a terrain of discourse and desire that stoke the fires of contemporary gardeners”

Our estimation strategy follows Angrist and Pischke , who advocate the use of two alternative approaches for dealing with omitted variable bias in panel data. The first employs a lagged dependent variable to account for the possibility that the subsidy was targeted based on pre-treatment trends in party support. The second uses a difference-in-difference model that …

Continue reading “Matching eliminates 105 observations by dropping 86 treated observations and 19 untreated respondents”

Wages fall by only 0.5% in El Salvador but nearly 3% in Guatemala, 8.5% in Nicaragua and 26% in Honduras. Because of these wage decreases and an imperfect transmission of output price changes across households, subsistence grain production increases by 1.8% and 2.1% in Guatemala and Nicaragua, respectively, while remaining almost unchanged in El Salvador …

Continue reading “The chief exceptions are medium and large commercial households in El Salvador”

Consistent with scientific theory, empirical research suggests that warmer climates, such as those projected for the Southwest, will lead to more extreme precipitation intensity and frequency , particularly during the winter season . Since annual precipitation is projected to decline , more extreme events do not translate into higher total rainfall for a given year. Instead, …

Continue reading “Benefits from elevated CO2 concentrations depend upon plant type and irrigation level”

Smallholders cannot compete. Under these conditions, they struggle to recoup the expenses of producing crops that require intensive agriculture. It is, therefore, vital that the rural poor continue to participate in self-sufficient agriculture, at least in part, given the precariousness of their ability to secure buyers at prices that will benefit them, even domestically. Risks …

Continue reading “The overwhelming implication of hybrid and genetically-modified seed is monoculture”

Often, PGPR must be repeatedly added to a soil to maintain high population densities. One of the greatest research gaps limiting this field is inconsistent results when cultures are taken from lab to field. To better manage the ecosystem function of PGPR it is critical to study the survival and activity of both inoculated and …

Continue reading “Physico-chemical properties of biochar account for some of its agricultural benefits”