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Compost is commonly used as biofertilizers. It can be used directly on the soil or by using compost-derived products such as extracts or compost-tea made by fermenting compost mass. Vermicompost-based innoculants proposed by permaculture methods, Korean natural farming and JADAM [13] are examples of biofertilizers.
Other examples are natural enzyme-digested proteins. Decomposing crop residue (green manure) from prior years is another source of fertility. Compost provides little in the means of nutrients to plants, but it does provide soil stability through increasing organic matter.
For example, mono-ammonium phosphate fertilizer may have a cadmium content of as low as 0.14 mg/kg or as high as 50.9 mg/kg. [89] The phosphate rock used in their manufacture can contain as much as 188 mg/kg cadmium [ 90 ] (examples are deposits on Nauru [ 91 ] and the Christmas Islands [ 92 ] ).
Biostimulants also termed as plant conditioners or bioeffectors are substances, cultures of micro-organism, and mixtures of materials used to promote the growth of crop plants and can include natural or artificial plant growth regulators and biofertilizers. They do not include pesticides or fertilizers.
Nitrogen and potassium are also needed in substantial amounts. For this reason these three elements are always identified on a commercial fertilizer analysis. For example, a 10-10-15 fertilizer has 10 percent nitrogen, 10 percent available phosphorus (P 2 O 5) and 15 percent water-soluble potassium (K 2 O). Sulfur is the fourth element that may ...
Environmental biotechnology is biotechnology that is applied to and used to study the natural environment.Environmental biotechnology could also imply that one try to harness biological process for commercial uses and exploitation.
For example, in America in 2012 there were some 78 million dogs, 86 million cats, and 3.5 million rabbits. [55] [56] [57] There is a tension between the role of animals as companions to humans, and their existence as individuals with rights of their own. [58] Many animals are hunted for sport. [59]
Azotobacter beijerinckii on agar plate. Azotobacter is a genus of usually motile, oval or spherical bacteria that form thick-walled cysts (and also has hard crust) and may produce large quantities of capsular slime.
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