Sentences with phrase «as soil fertility»

This simple, locally adapted technology, developed by scientists at the International Centre for Research in Agroforestry in Nairobi, has enabled farmers to double their grain yields within a matter of years as soil fertility builds.

Over the last decade, Lesotho's grain harvest dropped by half as its soil fertility fell.

Such marginal lands face challenges such as soil fertility and susceptibility to erosion.

Not exact matches

Erosion and the loss of soil fertility cause further complications, and as yields decline, more and more petrochemical fertilizers are applied to the soil, finding their way into already polluted water supplies.

Healthy soil can be defined as soil that allows plants to grow to their maximum productivity without disease, fertility or pest problems that limit production, and without a need for unusual supplements or support.

Unlike rice and wheat that require many inputs in terms of soil fertility and water, millets grow well in dry regions as rainfed crops.

MASIPAG promotes diversification and integration of farms, as well as using local resources for soil fertility management, enabling the farmers to avoid the use of harmful synthetic chemical inputs.

Developing and demonstrating practical methods of rebuilding natural soil fertility became J.I. Rodale's primary goal when World War II's sudden shortage of nitrogen fertilizer — as it was diverted to making munitions — exposed the natural nutrient poverty of the nation's soil.

It is about supporting a system of sustainable agricultural management that promotes soil health and fertility through the use of such methods as crop rotation and cover cropping, which nourish plants, foster species diversity, help combat climate change, prevent damage to valuable water resources, and protect farmers and farmersâ $ ™ families from exposure to harmful chemicals.

It promotes greater soil fertility by rotating crops and using natural materials, such as compost, manure and cover crops.

The frequent use of under - utilized species (often as rotation crops to build soil fertility) reduces erosion of agro-biodiversity, creating a healthier gene pool - the basis for future adaptation.

The soil sample report will typically give the following information: soil type or texture, pH, salinity (expressed as electro - conductivity), percentage of organic matter, and fertility status as indicated by the levels of nitrogen, potassium, and phosphorous.

As mineralization processes proceed much faster on ferralitic soils in the tropics and subtropics than on soils typical to temperate and continental zones, a high organic matter content and high biological activity are the pre-requisite for sustainable soil fertility.

As well as the characteristic high fertility of these soils, another identifying trait is the high presence of ceramics, charcoal and highly aromatic humic substanceAs well as the characteristic high fertility of these soils, another identifying trait is the high presence of ceramics, charcoal and highly aromatic humic substanceas the characteristic high fertility of these soils, another identifying trait is the high presence of ceramics, charcoal and highly aromatic humic substances.

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.

Global food experts discuss soil fertility, carbon management, regulatory framework, and sustainable food production as focal points for the food industry as a whole.

The food industry needs to take greater steps towards sustainable development — one of the key messages from the Sustainable Foods Summit 2015, hosted in Amsterdam on June 4 - 5, 2015, also citing soil fertility, carbon management, regulatory framework, and sustainable food production as major areas of concern.

Organic matter content is usually higher in organically - managed soils, indicating higher fertility and stability of organic soils as well as moisture retention capacity, which reduce the risk of erosion and desertification.

He mentioned the Free Seedlings Distribution programme which provides early bearing and high yielding planting materials to farmers at no cost, the Free Fertilizer Distribution Programme which is helping to improve upon soil fertility and increase yield, the National Cocoa Rehabilitation Programme which has facilitated the replanting of large hectares of over-aged, moribund and diseased farms as well as the Youth in Cocoa Initiative which is curbing the ageing - cocoa - farmers situation in Ghana.

They found that returning Earth to 350 ppm by 2100 requires planting trees on an epic scale, as well as substantial investments to boost soil fertility so it holds more carbon.

Near the top of that list is the New Zealand flatworm, a relative newcomer to Ireland's shores, which feeds on native earthworms that provide important ecosystem services as well as currying favor with farmers for enhancing the fertility and drainage of agricultural soils.

Schlesinger noted that as the ecosystem changed, key nutrients in the soil — such as nitrogen, phosphorus, and various organic elements — accumulated beneath the canopies of the mesquite bushes, forming what he called islands of fertility and starving out the surrounding grasses.

Fortunately, there are ways to remove crop residues for use as biofuels while increasing soil fertility.

THE AUTHORS REPLY: Biofuels researchers are striving to improve soil fertility as much as possible during biofuels production.

+ / - 500,000: km2 of land is degraded due to factors such as deforestation, unsustainable agriculture, overgrazing, uncontrolled mining activities, invasive alien species and climate change, leading to soil erosion, salinization, pollution, and loss of vegetation or soil fertility

«A significant amount of black carbon» So researchers have counted the biochar locked in the soil — where it enhances fertility — as carbon out of circulation for millions of years.

Since initial studies published several years ago promoted biochar, farmers around the world have been using it as a soil additive to increase fertility and crop yields.

«Plants supply biomass which forms the beginning of the food chain, but insects act as pollinators and soil organisms increase soil fertility through the breakdown and retention of chemical elements such as phosphorus.

«These organisms fulfill various functions, like allowing the soil to absorb processed organic matter such as leaves, wood, trunks and branches and with this nourishing crops; they also maintain an ecological balance capable of preventing the invasion of pests and provide greater fertility without using chemicals.

Changes in the Metagenome of Prokaryotic Community as an Indicator of Fertility of Arable Soddy - Podzolic Soils upon Fertilizer Application — A. N. Naliukhin — Eurasian Soil Science

Researchers grew tree seedlings in plots with varying soil fertility, and with and without different mixes of early succession plants such as broomsedge and goldenrod.

Estimates show that 795 million people worldwide are chronically undernourished, often as a direct consequence of land degradation, declining soil fertility, unsustainable water use, drought and loss of biodiversity.

Suze: The name William Albrecht resonates with many involved in the Weston A. Price Foundation as Albrecht wrote a chapter in Price's Nutrition and Physical Degeneration entitled «Food is Fabricated Soil Fertility.»

Once it became known that plants could be grown without soil organic matter, or humus, so long as there was an adequate supply of all essential mineral nutrients, Liebig used his fame as a chemist to devalue the important role of humus to soil fertility and promote inorganic mineral fertilizers as all that was necessary.

They are native to open grasslands in California and Oregon and as nitrogen fixers they play an important role in enhancing the fertility of the soil at Milagra.

The Terra Preta soils in the Amazon formations have retained their remarkable fertility for at least centuries, still until today, as documented by generational histories of many South American farm families.

prokaryotes — Biochar is best categorized simply as an adjunct to sustainable organic agriculture, like proper composting, it improves all aspects of soil productivity: tilth, fertility and vital nutrient sequestration.

Superior results in terms of range ecosystem improvement, productivity, soil carbon and fertility, water holding capacity and profitability have been regularly obtained by ranchers using multiple paddocks per herd with short periods of grazing, long recovery periods and adaptively changing recovery periods and other management elements as conditions change [4,5].

Fertility depends on deep rich soil development as much as it depends on temperature.

Clearly, the loss of biodiversity (estimated at thousands of times the natural backgroud rate), the number of well known species that are threatened (10 - 40 % depending on taxonomic group), the loss of 10,000 - 30,000 genetically distinct populations per day (see Hughes et al., 1997) massive declines of groundwater, soil productivity and fertility, etc. as well as the fact that human activities now impact biogeochemical cycles over huge spatial scales is sufficient evidence that our species is living off of natural capital, rather than income.

Activities include crop rotation, erosion control, soil fertility improvements, as well as the establishment of small agro-businesses, such as small - scale livestock and poultry production.

Healthy soil can be defined as soil that allows plants to grow to their maximum productivity without disease, fertility or pest problems that limit production, and without a need for unusual supplements or support.

Developing and demonstrating practical methods of rebuilding natural soil fertility became J.I. Rodale's primary goal when World War II's sudden shortage of nitrogen fertilizer — as it was diverted to making munitions — exposed the natural nutrient poverty of the nation's soil.

Projected impacts of climate change include extended periods of drought and, on the other hand, loss of soil fertility and degradation as a result of increased precipitation, both of which will negatively impact on agriculture and food security.

The most common feedstocks will likely be agricultural wastes, such as rice straw, or natural grasses such as switchgrass, a variety of prairie grass that is often planted on soil bank land to replenish the soil's fertility.

In addition to climate conditions, soil characteristics such as water storage capacity, fertility and texture are well known to limit forest productivity (Viereck et al. [1983]; Powers et al. [2005]; Xu et al. [2008]; Puhlick et al. [2012]-RRB-.

Growth is partitioned above - and below - ground as a function of soil fertility and to a lesser extent, soil water deficit (Landsberg and Waring [1997]-RRB-.

Biodynamics treats soil fertility and plant growth as ecologically interrelated tasks — indeed, the term «ecology» was originally defined by the German scientist Ernst Haeckel.

Soil organic matter, with carbon as its main component, is crucial to soil health and fertility, water infiltration and retention as well as food productSoil organic matter, with carbon as its main component, is crucial to soil health and fertility, water infiltration and retention as well as food productsoil health and fertility, water infiltration and retention as well as food production.

Fertility as more N is applied more residue is produced and more carbon is sequestered, Janzen (1987); Rasmusson and Rohde (1988); Campbell et al. (1991a); Ismail et al. (1994); Solberg et al. (1995); except where soil organic C is already high, Campbell et al. (1991 a, b); Nyborg et al. (1995).