Sentences with phrase «increases nitrogen content»

Adding leaves to compost effectively increases nitrogen content and creates a valuable natural fertilizer that can be used in the spring.

By increasing the nitrogen content of the soil, cyanobacteria provide an important source of natural fertilizer.

«This year I am using favas as «green fertilizer» — they increase nitrogen content naturally by letting them grow — doing their brilliant N - fixing job all fall and winter, then I hoe them under before planting my beds in February.»

Not exact matches

Here, the only nitrogen source was the air, yet the leaves» nitrogen content still increased by 77 % after passing through the garden.

This material has been tested as a fertilizer and has proven to stimulate the growth of several plant species, both forestry and herbaceous, increasing up to the 10 % its total content of nitrogen and carbon as well as an increase of its roots.

Reduced nitrogen content in atmospheres with raised carbon dioxide has previously been attributed to a kind of dilutive effect, in which nitrogen absorption fails to keep pace with the increase in plants» photosynthesis and growth.

The embryos produce nitrogen - rich waste that is useful to algae, and the algae increases the oxygen content of the fluid around the respiring embryos.

Possible mechanisms include (iv) fertilization of phytoplankton growth in the Southern Ocean by increased deposition of iron - containing dust from the atmosphere after being carried by winds from colder, drier continental areas, and a subsequent redistribution of limiting nutrients; (v) an increase in the whole ocean nutrient content (e.g., through input of material exposed on shelves or nitrogen fixation); and (vi) an increase in the ratio between carbon and other nutrients assimilated in organic material, resulting in a higher carbon export per unit of limiting nutrient exported.

At the same time it increases the content of Thiol in the skeletal muscle neutralising various nitrogen - based radicals.

In general, when energy intake is sufficient to meet energy demand, increasing the protein content of the diet imparts no added influence on nitrogen retention (12).

These include CO2 concentrations (which generally mediate a positive influence), temperature increases (beneficial to some crops in some regions and harmful elsewhere), increases in droughts, flash floods, weeds, and insect infestations (all harmful), as well as drains on the availability of soil nitrogen needed for the protein content of food crops.

Elevated atmospheric CO2 is associated with decreased plant nitrogen concentration, and therefore decreased protein, in many crops, such as barley, sorghum, and soy.210, 211,212,213 The nutrient content of crops is also projected to decline if soil nitrogen levels are suboptimal, with reduced levels of nutrients such as calcium, iron, zinc, vitamins, and sugars, although this effect is alleviated if sufficient nitrogen is supplied.214 Fourth, farmers are expected to need to use more herbicides and pesticides because of increased growth of pests215, 216,217,218 and weeds219, 220 as well as decreased effectiveness221 and duration222of some of these chemicals (Ch.

Soil analysis in 1990 suggested that nitrogen fertilizer application since 1967 had increased the organic carbon content in the surface soil layer by about 3 t / ha in a continuous wheat cropping system.

Scientific confidence of the occurrence of climate change include, for example, that over at least the last 50 years there have been increases in the atmospheric concentration of CO2; increased nitrogen and soot (black carbon) deposition; changes in the surface heat and moisture fluxes over land; increases in lower tropospheric and upper ocean temperatures and ocean heat content; the elevation of sea level; and a large decrease in summer Arctic sea ice coverage and a modest increase in Antarctic sea ice coverage.