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Phytoremediation technologies use living plants to clean up soil, air and water contaminated with hazardous contaminants. [1] It is defined as "the use of green plants and the associated microorganisms, along with proper soil amendments and agronomic techniques to either contain, remove or render toxic environmental contaminants harmless". [2]
Plant diseases can also be partially controlled by use of pesticides and by cultivation practices such as crop rotation, tillage, planting density, disease-free seeds and cleaning of equipment, but plant varieties with inherent (genetically determined) disease resistance are generally preferred. [2]
Now the dominant nitrogen-fixing plant in the eastern United States, kudzu fixes an estimated 235 kilograms per hectare (209 + 11 ⁄ 16 lb/acre) of nitrogen per year, which is an order of magnitude higher than the rates of native species. [6] This ability allows it to flourish in nitrogen-poor sites where other plants are unable to grow.
Harmful plant strategies – implementing existing methods and developing new technologies for the identification, exclusion, eradication, and management of invasive weeds and regulated plants. Biological control – developing technologies to allow natural enemies to effectively mitigate the impacts of invasive pests, arthropods, weeds, and ...
Target 5: At least 75% of the most important areas for plant diversity of each ecological region protected with effective management in place for conserving plants and their genetic diversity. Target 6: At least 75% of production lands in each sector managed sustainably, consistent with the conservation of plant diversity.
The Lunar greenhouse is an underground farm made by Phil Sadles and Gene Giacomelli of the University of Arizona's Controlled Environment Agriculture Center (CEAC) [4] [5] The urine and exhaled air of the astronauts is reused in the system by the plants. [6] GreenForges is a Canadian startup developing underground farming systems. [7] [8] [9]
The following is a breakdown of the energetics of the photosynthesis process from Photosynthesis by Hall and Rao: [6]. Starting with the solar spectrum falling on a leaf, 47% lost due to photons outside the 400–700 nm active range (chlorophyll uses photons between 400 and 700 nm, extracting the energy of one 700 nm photon from each one)
Maize plants with severe zinc deficiency in the foreground, with healthier plants (planted at the same time) in the background. Zinc deficiency is common in many different types of soil; some soils (sandy soils, histosols and soils developed from highly weathered parent material) have low total zinc concentrations, and others have low plant-available zinc due to strong zinc sorption ...