For growing plants

In low shear, there is low mixing which means the bioreactor can be used for growing plant and animal cells. 

Hoagland, D. R., Arnon, D. I. "The water-culture method for growing plants without soil," Calif. Agrlc. Exp. Stn. Manual 347, 1950. 

Because of limits on the amount of land accordingly available for growing plants that can be used for energy, bioenergy cannot be viewed globally as the sole replacement or substitute for fossil fuels, but rather as one element in a broader portfolio of renewable energy sources [1]. In rural locations in developing countries without current access to electricity, however, biomass can provide a transformative local power source. 

The direct method for sewage disposal was originally developed for use on space vehicles where the hydrogen would be transduced in fuel cells to on-board electricity. The C02 evolved would be used for growing plants on board. 

In choosing a lamp for a controlled-environment chamber for growing plants, both the total energy emitted and the wavelength distribution of the photons should be considered. Tungsten lamps are comparatively poor sources of visible radiation because about 90% of their radiant energy is emitted in the IR—the actual amount depends on the operating temperature... 

The "forced flowering" process is a specialized technique for growing plants in which the time required to bring your crop to production or harvest is shortened by controlling the light period. All aspects of the planfs life are controlled so that the shortest amount of time is taken to produce the largest amount of product in the least amount of space with a minimal amount of work. I have fashioned the process to be easily accomplished by using common items and equipment. 

Brown, D.A., Ul-Haq, A., 1984. A porous membrane-root culture technique for growing plants under controlled soil conditions. Soil Sci. Soc. Am. J. 48, 692-695. 

The NO formed naturally in this manner eventually suffers oxidation to nitric acid (see the Ostwald process in Section 21.4 of the text) which precipitates as rain. The nitrate ion is a natural source of nitrogen for growing plants. 

Unlike other hormones, cytokinins are found in both plants and animals. They stimulate cell division and often are included in the sterile media used for growing plants from tissue culture. If the growth-regulating compounds in a medium is high in cytokinins but low in auxin, the tissue culture explant (small plant part) will produce numerous shoots. On the other hand, if the mixture has a high ratio of auxin to cytokinin, the explant will produce more roots. Cytokinins also are used to delay aging and death (senescence). 

Moisture-absorbing antistatic film with enhanced permeability to UV radiation is used primarily for seed beds, as it does not become dusty and therefore creates better conditions for growing plants inside hot-houses. The film also has a surface that prevents the deposition of condensed droplets, increasing the yield of vegetable crops by 15%-20% compared to normal PE film. 

Boron, chlorine, copper, iron, manganese, molybdenum (for N-fixation), and zinc are considered essential plant micronutrients. These elements are needed by plants only at very low levels and frequently are toxic at higher levels. There is some chance that other elements will be added to this list as techniques for growing plants in environments free of specific elements improve. Most of these elements function as components of essential enzymes. Manganese, iron, chlorine, and zinc may be involved in photosynthesis. Though not established for all plants, it is possible that sodium, silicon, and cobalt may also be essential plant nutrients. 

The growth of weeds reduces the soil nutrients available for growing plants and these are normally controlled by herbicides. The use of herbicide-resistant strains of food crops by genetic modification has so far proved very controversial and recently weeds have been found to build up their resistance to the same herbicides. A simpler and less controversial way of achieving the same result is to use dark coloured mulching films. These do not need to be... 

---