Sentences with phrase «of soil organic»

We found that soil warming results in a four - phase pattern of soil organic matter decay and carbon dioxide fluxes to the atmosphere, with phases of substantial soil carbon loss alternating with phases of no detectable loss.

Interest in high - latitude methane and carbon cycles is motivated by the existence of very large stores of carbon (C), in potentially labile reservoirs of soil organic carbon in permafrost (frozen) soils and in methane - containing ices called methane hydrate or clathrate, especially offshore in ocean marginal sediments.

Earth system models disagree on the fate of soil organic carbon under climate change.

... in seeking to maximize yields to meet growing global food demand, has caused loss of soil organic carbon (SOC) and compaction, impairing critical regulating and supporting ecosystem services upon which humans also depend.

Furthermore, the team found that land that had been cultivated using conservation tillage since the 1980s had been able to recover more than a fourth of the soil organic carbon it had lost.

The importance of soil organic matter key to drought - resistant soil and sustained crop production.

The recovery of natural vegetation in abandoned areas depends upon the intensity and length of the agricultural activity and the amount of soil organic matter on the site at the time of abandonment.

The sequestration potential also depends on the chemical characteristics of the soil organic matter and its ability to resist microbial decomposition.

Permafrost thawing and precipitation in drainage basins of Arctic rivers are projected to intensify with escalating atmospheric temperatures and thereby enhance the mobilization of soil organic matter to the Arctic Ocean32, 33, 34, 35, 36.

Linkosalmi M., Pumpanen J., Biasi C., Heinonsalo J., Laiho R., Lindén A., Palonen V., Laurila T. and Lohila A. (2015) Studying the impact of living roots on the decomposition of soil organic matter in two different forestry - drained peatlands.

A call to investigate drivers of soil organic matter retention vs. mineralization in a high CO2 world.

-- Research shows that wheat crops benefit from a preceding legume pulse crop through the addition of soil organic matter leading to conservation of soil moisture and the addition of nitrogen (Miller et al 2002; Miller et al 2003; Cutforth et al 2007).

Humic substances, which refer to a mixture of soil organic matter resulting from the decomposition of plant and animal residues, contain three fractions — fulvic acid, humic acid and humin — that have been shown through previous research to have a beneficial effect on plant root initiation and elongation.

Scientists have recently used the Canadian Light Source (CLS) to evaluate the effects of various sources of supplemental nitrogen fertilizer on the chemical composition of soil organic matter.

Known more accurately as soil organic carbon, it is part of soil organic matter, which is made up of decaying plant and animal matter, and essential elements for good plant growth such as calcium, phosphorous, and nitrogen.

Conversion of natural vegetation to agriculture is a major source of CO2, not only due to losses of plant biomass but also, increased decomposition of soil organic matter caused by disturbance and energy costs of various agricultural practices such as fertilization and irrigation.

Many soils in such lowland tropical areas are considered infertile and so Terra Preta, with its enhanced fertility due to high levels of soil organic matter and nutrients such as nitrogen, phosphorus, potassium and calcium, is quite an anomaly.

The review of relevant research conducted by Stolze et al. (2000) concludes that under European conditions organic agriculture has beneficial effects on the characteristics of soil organic matter because the soil organic carbon content is higher on organically farmed soils than on conventional ones.

No - tilled fields often have more beneficial insects and annelids, [29] a higher microbial content, and a greater amount of soil organic material.

Also, there has not been a uniform definition of soil organic carbon sequestration among researchers.

Drivers of soil organic carbon (SOC) storage are likely to vary in importance in different regions and at different depths due to local factors influencing SOC dynamics.

No - till farming has carbon sequestration potential through storage of soil organic matter in the soil of crop fields.

There are also questions around the rates of soil organic carbon sequestration that have been researched and published for the past 20 years.

The importance of soil organic matter key to drought - resistant soil and sustained crop production.

Not exact matches

Speaking at the Soil Association conference in Manchester on Wednesday (9 February), Mr Kendall said organic producers needed to convince consumers about the quality of their produce rather than making claims which might not stand up.

This destruction of elements vital to the ecology and renewal of the land — elimination of entire communities, their flora and fauna, their roots and seeds, their organic soils....

The latin «humus» refers to the natural organic compounds that enrich the soil through the biological decomposition of plant and animal particles.

And it is apparent in the recurrent themes of returning to the natural, to the soil, to simpler forms of life, and to the elemental experiences of common people, that manifest themselves in folk music, communes, handicrafting, and classes in organic gardening.

As microorganisms in the soil break down the organic material into an inorganic soluble form, a slow release of nutrients is provided over a longer period of time.

With organic fertilizers a buildup of toxicity in the soil is unlikely, as long as the amount of organic material incorporated into the soil is fully decomposed.

When a seed is planted in the appropriate soil, it is planted in a rich composite of properties such as organic elements, minerals, rock and clay particles, acids, water, etc..

The land is deprived of nutrients and organic matter which is essential for maintaining productive soil - structure.

Here Germanic blood and soil were identified with the unspoiled realm of organic nature — a realm to which the German Volk needed to return in order to be made whole.

On Thursday, I was part of a distinguished panel (see photo) on Agro-Ecology and Soil which described how regenerative organic agriculture can reduce emissions, while mitigating climate change through carbon capture by plants and storage by soil biological procesSoil which described how regenerative organic agriculture can reduce emissions, while mitigating climate change through carbon capture by plants and storage by soil biological processoil biological processes.

The Initiative is based on the finding that «4 ‰» annual growth rate of the soil carbon stock would make it possible to stop the present increase in atmospheric CO2 and aims to use a range of agricultural systems to sequester CO2 and store it in the ground as soil organic carbon (SOC).

«Policymakers have not yet grasped the significance of organic agriculture for resilient, reliable, non-toxic food production, and its ability to mitigate climate change while restoring our nation's soil health.

Local customers purchase a 3 - peck organic apple share ahead of harvest time making it possible for him to purchase soil amendments and natural spray materials for the trees.

U.S. Department of Agriculture organic regulations have established regulations on appropriate waiting times, and now all organic producers must wait either 90 or 120 days to harvest their crops following the use of untreated manure, depending on whether the crop has contact with the soil (90 days: think cherries or apples; 120 days: think lettuce or carrots).

Rodale Institute, in turn, began specific research at the Burkholder's Farm, studying the health of the cows, soil, and milk to see how organic management affects omega - 3, omega - 6 and conjugated linoleic acid levels in the dairy products.

Tags: organic farming, new farm, farm business, organic certification, cost of production, soil testing, Mary - Howell and Klaas Martens, women in ag

Ideas that organic food could be healthier and better for the environment originated in the early days of the organic movement as a result of publications like the 1943 book The Living Soil [14][15] and Farming and Gardening for Health or Disease (1945).

(Kutztown, PA) Today Rodale Institute announced the launch of a global campaign to generate public awareness of soil's ability to reverse climate change, but only when the health of the soil is maintained through organic regenerative agriculture.

Organic matter does this either by «gluing» soil particles together or creating favorable living conditions for soil microorganisms, which in turn can «glue» soil particles together through production of various organic compounds such as glomalin or by the action of fungal hyphae (Sylvia et al., 2005).

Soil organic matter in tilled manure organic systems increased from 3.3 % in 1981 to about 4.5 % in 2013 representing a net increase of 27 % (Figure 5).

Addition of organic matter to the soil increases its water holding capacity mainly because organic matter increases soil macroaggregates, hence the number of micropores and macropores in the soil (Bot and Benites, 2005).

Analysis of 35 years of data from the FST also found that the volume of water percolating through the soil was 15 - 20 % greater in the organic systems than the conventional system.

We have seen a growing outcry from farmers over this issue for the past few years and farmers are adamant that healthy soil is the foundation of the organic label.

Analysis of FST data over a 35 year period has established that soil health in the organic system has continued to increase over time while the conventional system has remained essentially unchanged (Figure 5).

The harsh winters allow for the natural death of organic plant life that returns nutrient rich organic matter to the soil each year.

No - till production has gained popularity among farmers as a result of potential reduction in labor and energy use [1] and soil quality benefits such as improved soil structure and increased soil organic matter levels [2 - 5].