What's the difference between compost and humus?

Compost


Definition:

  • (n.) A mixture; a compound.
  • (n.) A mixture for fertilizing land; esp., a composition of various substances (as muck, mold, lime, and stable manure) thoroughly mingled and decomposed, as in a compost heap.
  • (v. t.) To manure with compost.
  • (v. t.) To mingle, as different fertilizing substances, in a mass where they will decompose and form into a compost.

Example Sentences:

  • (1) In autumn, leaf-heaps composted themselves on sunken patios, and were shovelled up by irritated owners of basement flats.
  • (2) Composting loos should be the answer to the world's toilet crisis Read more The water and sanitation target is simple and unambiguous: by 2030 every man, woman and child – whether at home, school, hospital or their workplace – should have access to a safe water supply and be able to go to the toilet in a clean space with privacy.
  • (3) To give a plant a good start, sow the seed into fine compost – this is usually called seed compost and is available at garden centres.
  • (4) There are numerous sustainable options, including packing materials made from corn starch or sorghum , which can be composted .
  • (5) At most sampling points, coliform bacteria declined to low or undetectable numbers early in the composting period.
  • (6) Dairy waste solids in each compost pile were heated into the thermophilic temperature range and generally composted well.
  • (7) It was concluded that the active indigenous flora of compost establishes a homeostatic barrier to colonization by salmonellae, and in the absence of competing flora, reinoculated salmonellae may grow to potentially hazardous densities.
  • (8) Studies have shown that more natural soil amendments, like compost, manure and charcoal products, like those produced by the Biochar Company , can reduce atmospheric carbon and keep soils highly productive.
  • (9) Findings of this study suggest that composting offers little benefit toward net reduction in coliform bacterial numbers in dairy waste solids.
  • (10) I picked the strawberries growing up the side of my compost loo for breakfast; physalis and ferns were growing inside my shower; I snacked on pitanga, a delicious sweet-sour berry.
  • (11) With a proper storage time of 12 months, the resulting compost can be used to grow trees and food crops.
  • (12) The high-concentration metals in municipal refuse compost were tested for effects on cellulase production and activity in Thermomonospora curvata.
  • (13) It was also regularly isolated as a dominant fungus during forced aeration composting and after 30 days in an unaerated stationary curing pile; in both cases, the fungus was found in pile zones with temperatures less than 60 degrees C. Compost stored outdoors in stationary unaerated piles from 1 to 4 months after screening out of woodchips contained easily detectable amounts of A. fumigatus in the exterior pile zones (0- to 25-cm depths).
  • (14) Over the last five years, we’ve trained more than 20 compost technicians and built over a dozen large compost sites for emergency settings, primary schools, NGO compounds, and housing projects — providing simple, clean composting toilets and on-site waste treatment for thousands of people.
  • (15) Courgettes like full sun, well composted fertile ground and regular watering in dry weather.
  • (16) Composting of wastes from swine feeding operations was studied.
  • (17) But in terms of building the actual toilets and compost site, simple inexpensive materials are all that are needed.
  • (18) The compost piles consisted of ground corn husks, straw, and race horse manure.
  • (19) This made it necessary to compost the manure liquid and use it after subsidiary thermal treatment.
  • (20) It has been proved that the method can be successfully used for the determination of biochemical changes in microbe cultures, the soil, in composts, in farmyard manures etc.

Humus


Definition:

  • (n.) That portion of the soil formed by the decomposition of animal or vegetable matter. It is a valuable constituent of soils.

Example Sentences:

  • (1) Removal of humus by anionic exchange is a potential process for small waterworks in Norway.
  • (2) The partition coefficient (Kp) of BaP to the humus content of the water was determined by an equilibrium dialysis technique.
  • (3) The humus synthesis processes were most active in the wheat and lucerne plots, they were less effective in the fallow and virgin soils.
  • (4) Naturally occurring humic substances are particular chemical compounds which are found in humus.
  • (5) The bioaccumulation of benzo[a]pyrene (BaP) into Daphnia magna from two natural humic waters (one lake water and one bog water), and two humus preparations (Nordic Reference fulvic acid (Nordic FA) and a lyophilized concentrate) of the same aquatic origin was measured by using several dissolved organic carbon (DOC) concentrations for each sample.
  • (6) The application of humus had a positive effect on grain and straw yield of paddy and the yield increased with the increasing concentration of humus.
  • (7) When bacterial cells were counted daily in humus-gleisolic soil, their number did not depend on time if the soil was incubated for five days.
  • (8) At present such a custom is very rare owing the chemical pollution of sewage continuously increasing; but in some countries it is still in use, and is our opinion and experience that organic waste material must be reused as fertilizer of land, more and more devoid of humus and subject to erosion of winds and waters.
  • (9) "Organic" or "organically grown" foods are commonly represented as "food grown without pesticides; grown without artificial fertilizers; grown in soil whose humus content is increased by the additions of organic matter; grown in soil whose mineral content is increased with applications of natural mineral fertilizers; has not been treated with preservatives, hormones, antibiotics etc."
  • (10) As pH is decreasing, the physical and chemical properties of humus change.
  • (11) Four PAH compounds, fluorene, anthracene, fluoranthene and benzo(a)pyrene were dissolved in humus poor (lake) and humus rich water.
  • (12) The rate of biological nitrogen fixation was determined by the acetylene technique in soils and on the roots of orange, mandarin and lemon trees growing in red, yellow, podzolic, alluvial brown forest, and humus-calcareous soils.
  • (13) In all four samples, an increase in humus concentration decreased the bioavailability of BaP in a logarithmic manner.
  • (14) His deep commitment to the freedom of the human spirit is reflected in his actions as well as artistic creations.” • This article was amended on 8 September 2016 to clarify that Eno’s music was replaced; the dance piece Humus was not withdrawn entirely.
  • (15) Chlorinated fluorene, fluoranthene and benzo(a)pyrene were formed during chlorination of PAH polluted lake water, but not during chlorination of the humus rich water samples.
  • (16) In soils with native organic matter (humus) the rate of sulfate reduction was very low; it slightly increased with increased clay content of the soils.
  • (17) Root nodulation, growth and yield of gram crop were appreciably increased due to humus application.
  • (18) The fertilizer content and humus value of such wastes are useful for agricultural purposes, and the recycling of sewage onto the land eliminates many of our stream pollution problems.
  • (19) From humus obtained from Stuttgart, a bacterium was isolated with lawsone (2-hydroxy-1,4-naphthoquinone) as selective source of carbon.
  • (20) The maximum nitrogen fixation (48--51 kg N per hectare) was found in red and humus-calcareous soils of orange plantations.