Arracacia xanthorrhiza Bancroft
... South America and still largely confined to that continent in its distribution. There are numerous domesticated umbellifers from Eurasia, many of which form edible roots or other subterraneous storage organs, such as parsnip, parsley, carrot and celeriac. All these cultigens and the vast majority of ...
... South America and still largely confined to that continent in its distribution. There are numerous domesticated umbellifers from Eurasia, many of which form edible roots or other subterraneous storage organs, such as parsnip, parsley, carrot and celeriac. All these cultigens and the vast majority of ...
PC 222 Final report 2005
... 1988 and 1994. The UK outbreak was detected in April 2000 on an all-yearround (AYR) chrysanthemum crop on the south coast, although the outbreak was well advanced and probably long established at this time. T. palmi was declared eradicated in July 2001 after freedom from the pest occurred over two c ...
... 1988 and 1994. The UK outbreak was detected in April 2000 on an all-yearround (AYR) chrysanthemum crop on the south coast, although the outbreak was well advanced and probably long established at this time. T. palmi was declared eradicated in July 2001 after freedom from the pest occurred over two c ...
Integrated Pest Management by Dale Bottrell
... organic pes&des and the cost of their application have risen significantly in recent years, placing a financial burden on those farmers and others who use large quantities of these materials to control serious pests. Potentially of even more concern, significant groups of pests have developed strain ...
... organic pes&des and the cost of their application have risen significantly in recent years, placing a financial burden on those farmers and others who use large quantities of these materials to control serious pests. Potentially of even more concern, significant groups of pests have developed strain ...
The History and Use of Kudzu in the Southeastern United States
... Some Alabama farmers still harvest kudzu from fields managed for this purpose by annual or biennial harvesting. It is most frequently used in this manner during dry periods, since its deep root system allows it to obtain moisture for growth when other forage species cannot. All types of grazing anim ...
... Some Alabama farmers still harvest kudzu from fields managed for this purpose by annual or biennial harvesting. It is most frequently used in this manner during dry periods, since its deep root system allows it to obtain moisture for growth when other forage species cannot. All types of grazing anim ...
Erosion and Sediment Control - International Erosion Control
... Sediment control suitable for stormwater outlets Rock filter dams (RFD) – Type 2 sediment trap for concentrated flows Sediment weirs (SW) – Type 2 sediment trap for concentrated flows Sediment basins (SB) – Type C (dry) basins Sediment basins (SB) – Type F & D (wet) basins Sediment basin spillways ...
... Sediment control suitable for stormwater outlets Rock filter dams (RFD) – Type 2 sediment trap for concentrated flows Sediment weirs (SW) – Type 2 sediment trap for concentrated flows Sediment basins (SB) – Type C (dry) basins Sediment basins (SB) – Type F & D (wet) basins Sediment basin spillways ...
Annotated Bibliography on Ecological Intensification
... inputs, such practices may deplete natural resources and impair the ability of agroecosystems to sustain production into the future. However, the Food and Agriculture Organization of the United Nations (FAO, 2011a) along with numerous recent reviews (The Royal Society 2009; Clay 2011; Foley et al. 2 ...
... inputs, such practices may deplete natural resources and impair the ability of agroecosystems to sustain production into the future. However, the Food and Agriculture Organization of the United Nations (FAO, 2011a) along with numerous recent reviews (The Royal Society 2009; Clay 2011; Foley et al. 2 ...
invasive ecology of exotic old world bluestem
... communities and ecosystems. Exotic Old World bluestem grasses (OWBG; Bothriochloa and Dichanthium spp.) have become increasingly invasive throughout the central and southern U.S. Little is known regarding the impacts of OWBG invasion on native grassland and savannah ecology and how to successfully c ...
... communities and ecosystems. Exotic Old World bluestem grasses (OWBG; Bothriochloa and Dichanthium spp.) have become increasingly invasive throughout the central and southern U.S. Little is known regarding the impacts of OWBG invasion on native grassland and savannah ecology and how to successfully c ...
A developed procedure for predicting the risk of liquefaction: A case
... and safety factor (FS) were proposed from which the liquefaction potential can be calculated directly. Soil liquefaction risk can be assessed by the proposed relationship between (PL) and (FS) based on deterministic approaches. Keywords: Probability of liquefaction, SPT, Safety factor, Empirical equ ...
... and safety factor (FS) were proposed from which the liquefaction potential can be calculated directly. Soil liquefaction risk can be assessed by the proposed relationship between (PL) and (FS) based on deterministic approaches. Keywords: Probability of liquefaction, SPT, Safety factor, Empirical equ ...
IMPACT OF PREDATORS ON THE ABUNDANCE OF
... on other species is more rarely taken into account. Earthworms, called “ecosystem engineers” ...
... on other species is more rarely taken into account. Earthworms, called “ecosystem engineers” ...
Schedonorus pratensis
... start acting against the infection. It should be noted though that any effects of litter quality on litter ...
... start acting against the infection. It should be noted though that any effects of litter quality on litter ...
Utilizing and conserving agrobiodiversity in agricultural landscape
... long term driving force behind organic farming systems was and is to support a stable crop growth by avoiding soil degradation through a management system that restores and maintains soil health as the basis for healthy crops, animals and humans. Soil fertility includes a good soil structure to allo ...
... long term driving force behind organic farming systems was and is to support a stable crop growth by avoiding soil degradation through a management system that restores and maintains soil health as the basis for healthy crops, animals and humans. Soil fertility includes a good soil structure to allo ...
Food Web Responses to Augmenting
... after 5 d on the agar. Accordingly, the procedure was modified in September 2004 in an effort to increase detection of trapping NF. On d 5, we added 1,000 live S. riobrave or S. diaprepesi to the dishes. Plates were resealed, and 48 hr later EPN were counted. Sporulation was abundant and cadavers we ...
... after 5 d on the agar. Accordingly, the procedure was modified in September 2004 in an effort to increase detection of trapping NF. On d 5, we added 1,000 live S. riobrave or S. diaprepesi to the dishes. Plates were resealed, and 48 hr later EPN were counted. Sporulation was abundant and cadavers we ...
Mycorrhizae – symbiotic mediators of rhizosphere and
... temperate and tropical ecosystems including agricultural systems. The fungal partners in AM associations are remarkably abundant, accounting for 5 to 50% of the microbial biomass in agricultural soils (Olsson et al. 1999). These fungi are members of the Glomeromycota, a monophyletic phylum containi ...
... temperate and tropical ecosystems including agricultural systems. The fungal partners in AM associations are remarkably abundant, accounting for 5 to 50% of the microbial biomass in agricultural soils (Olsson et al. 1999). These fungi are members of the Glomeromycota, a monophyletic phylum containi ...
L-14 Land Degradation and a Monitoring Framework in
... aspect of land degradation is that it is a process/change but not an event. Land degradation is a gradual negative environmental process which involves one or a combination of processes such as accelerated soil erosion by water or wind, sedimentation, long-term reduction of amount or diversity of na ...
... aspect of land degradation is that it is a process/change but not an event. Land degradation is a gradual negative environmental process which involves one or a combination of processes such as accelerated soil erosion by water or wind, sedimentation, long-term reduction of amount or diversity of na ...
Backyard Magic
... releases a variety of nutrients just when they’re required by the growing plants. Insects and diseases don’t seem to do as much damage where the soil is enriched with plenty of decayed organic matter. And there’s another bonus: dark compost draws the sun’s heat to warm the garden soil, making our sh ...
... releases a variety of nutrients just when they’re required by the growing plants. Insects and diseases don’t seem to do as much damage where the soil is enriched with plenty of decayed organic matter. And there’s another bonus: dark compost draws the sun’s heat to warm the garden soil, making our sh ...
symbiotic mediators of rhizosphere and ecosystem processes
... temperate and tropical ecosystems including agricultural systems. The fungal partners in AM associations are remarkably abundant, accounting for 5 to 50% of the microbial biomass in agricultural soils (Olsson et al. 1999). These fungi are members of the Glomeromycota, a monophyletic phylum containi ...
... temperate and tropical ecosystems including agricultural systems. The fungal partners in AM associations are remarkably abundant, accounting for 5 to 50% of the microbial biomass in agricultural soils (Olsson et al. 1999). These fungi are members of the Glomeromycota, a monophyletic phylum containi ...
The role of diversity in savannas: modelling plant functional diversity
... local conditions, such as soil texture, as well as on feedbacks between the vegetation and the soil. Rainfall input to the soil positively affects the local soil water balance and provides plant available water through increased soil moisture. Plants in turn take advantage of this soil water to prod ...
... local conditions, such as soil texture, as well as on feedbacks between the vegetation and the soil. Rainfall input to the soil positively affects the local soil water balance and provides plant available water through increased soil moisture. Plants in turn take advantage of this soil water to prod ...
Potential Role for the Vetiver System in Gulf Coast
... characteristics, and in its inherent ability to grow without becoming a weed and without attracting pests. Vetiver grass has a massive, finely structured root system that is unique among grasses. With no rhizomes or stolons that spread to the sides, the plant’s roots grow straight down as a mass as ...
... characteristics, and in its inherent ability to grow without becoming a weed and without attracting pests. Vetiver grass has a massive, finely structured root system that is unique among grasses. With no rhizomes or stolons that spread to the sides, the plant’s roots grow straight down as a mass as ...
626.pdf
... replacement originates from axillary buds, which require the greatest time interval following defoliation (Briske 1986). In contrast to the Great Plains, sagebrush-steppe plant communities in the Intermountain West have a very limited growing season because peak precipitation occurs in winter and sp ...
... replacement originates from axillary buds, which require the greatest time interval following defoliation (Briske 1986). In contrast to the Great Plains, sagebrush-steppe plant communities in the Intermountain West have a very limited growing season because peak precipitation occurs in winter and sp ...
Alfalfa Trap Cropping Increases Abundance Of Key Arachnids In An
... The three biological control techniques are classical, augmentation, and conservation. Classical biological control involves the introduction and establishment of natural enemies to reduce exotic pest densities below levels that are deleterious to crops. The key to success for classical biological c ...
... The three biological control techniques are classical, augmentation, and conservation. Classical biological control involves the introduction and establishment of natural enemies to reduce exotic pest densities below levels that are deleterious to crops. The key to success for classical biological c ...
symbiotic mediators of rhizosphere and ecosystem processes
... benefits between plants and fungi will generate a positive feedback, and asymmetrical delivery of benefits will generate a negative feedback. Positive feedback strengthens the mutualism between individual pairs of plants and fungi, yet decreases community diversity; while negative feedback weakens ...
... benefits between plants and fungi will generate a positive feedback, and asymmetrical delivery of benefits will generate a negative feedback. Positive feedback strengthens the mutualism between individual pairs of plants and fungi, yet decreases community diversity; while negative feedback weakens ...
linking fungal diversity and community dynamics to terrestrial
... 2006a; De Graaff, 2010). A wide range of organic compounds can be decomposed by more or less specialized fungi (Baldrian et al., 2011). Many of these fungi, which are also called molds, are opportunistic, fast-growing fungi that can produce huge numbers of spores or melanized resting structures of h ...
... 2006a; De Graaff, 2010). A wide range of organic compounds can be decomposed by more or less specialized fungi (Baldrian et al., 2011). Many of these fungi, which are also called molds, are opportunistic, fast-growing fungi that can produce huge numbers of spores or melanized resting structures of h ...
samson agro incorporator cm/cmx
... But also because the slurry no longer have contact with the air. Studies have shown that injecting slurry in grass crops limits the evaporation of ammonia/nitrogen by 20 to 75 percent compared to applying the slurry with a drip hose boom. ...
... But also because the slurry no longer have contact with the air. Studies have shown that injecting slurry in grass crops limits the evaporation of ammonia/nitrogen by 20 to 75 percent compared to applying the slurry with a drip hose boom. ...
Technical Digest - The National Lime Association
... Because quicklime chemically combines with water, it can be used very effectively to dry any type of wet soil. Heat from this reaction further dries wet soils. The reaction with water occurs even if the soils do not contain significant clay fractions. When clays are present, lime’s chemical reaction ...
... Because quicklime chemically combines with water, it can be used very effectively to dry any type of wet soil. Heat from this reaction further dries wet soils. The reaction with water occurs even if the soils do not contain significant clay fractions. When clays are present, lime’s chemical reaction ...
modelagem do escoamento, da produção de sedimentos e
... Defense Place and Date: Santa Maria, March 1st, 2011. Areas under intensive tobacco crop cultivation have been impacting the water balance and increasing soil erosion in Southern Brazil. Application of large amounts of mineral fertilizers, higher than the tobacco requirement, contributes to excessiv ...
... Defense Place and Date: Santa Maria, March 1st, 2011. Areas under intensive tobacco crop cultivation have been impacting the water balance and increasing soil erosion in Southern Brazil. Application of large amounts of mineral fertilizers, higher than the tobacco requirement, contributes to excessiv ...
Crop rotation
Crop rotation is the practice of growing a series of dissimilar/different types of crops in the same area in sequenced seasons.It also helps in reducing soil erosion and increases soil fertility and crop yield. Crop rotation gives various nutrients to the soil. A traditional element of crop rotation is the replenishment of nitrogen through the use of green manure in sequence with cereals and other crops. Crop rotation also mitigates the build-up of pathogens and pests that often occurs when one species is continuously cropped, and can also improve soil structure and fertility by alternating deep-rooted and shallow-rooted plants.Crop rotation is one component of polyculture.