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A biofertilizer is a substance containing living micro-organisms which, when applied to seeds, plant surfaces, or soil, colonize the rhizosphere or the interior of the plant and promotes growth by increasing the supply or availability of primary nutrients to the host plant. [1]
Nitrogen is an essential element needed for the creation of biomass and is usually seen as a limiting nutrient in agricultural systems. Though abundant in the atmosphere, the atmospheric form of nitrogen cannot be utilized by plants and must be transformed into a form that can be taken up directly by the plants; this problem is solved by biological nitrogen fixers.
Azotobacter chroococcum is a bacterium that has the ability to fix atmospheric nitrogen. It was discovered by Martinus Beijerinck in 1901, and was the first aerobic, free-living nitrogen fixer discovered. [2]
A range of microalgae species are produced in hatcheries and are used in a variety of ways for commercial purposes. Studies have estimated main factors in the success of a microalgae hatchery system as the dimensions of the container/bioreactor where microalgae is cultured, exposure to light/irradiation and concentration of cells within the reactor.
T. Misaka / Seminars in Cell & Developmental Biology 24 (2013) 222–225 223 Fig. 1. The “miracle fruit”, R. dulcifica. to easily consume these foods due to the sweetness produced by
They are an important group of microorganisms used in biofertilizer. Biofertilization accounts for about 65% of the nitrogen supply to crops worldwide. [citation needed] PGPRs have different relationships with different species of host plants. The two major classes of relationships are rhizospheric and endophytic.
This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. Ah, New Year’s Day. You can set goals at any time of year, of course, but the new year provides that extra rush of motivation.
#12 Northern Iowa (23-10) 16-13 ATS 6-4 L10 6.4 3PT High Scorers: Koch 12.3, Ahelegbe 11.8, Eglseder 10.1 #4 Washington ★ (25-8) 18-11-1 ATS 8-2 L10 4.2 3PT