Competitive interactions across a soil fertility gradient in a
... whole soil fertility gradient and that the number of interspecific interactions remains manageable. In addition, short-term controlled experiments have the potential for measuring the mechanism of competition (e.g. nutrient or water uptake) rather than just the outcome as measured by, for example, bi ...
... whole soil fertility gradient and that the number of interspecific interactions remains manageable. In addition, short-term controlled experiments have the potential for measuring the mechanism of competition (e.g. nutrient or water uptake) rather than just the outcome as measured by, for example, bi ...
Dry matter and root colonization of plants by indigenous
... et al., 2009). The two-phase extraction process generates a liquid phase (olive oil) and a water-rich solid organic waste (alpeorujo), which is dried and extracted with solvents to obtain an extra yield of oil and the dry olive-mill residue (DOR). It has been estimated that the annual production of ...
... et al., 2009). The two-phase extraction process generates a liquid phase (olive oil) and a water-rich solid organic waste (alpeorujo), which is dried and extracted with solvents to obtain an extra yield of oil and the dry olive-mill residue (DOR). It has been estimated that the annual production of ...
New primary resource increases predation on a pest in a banana
... with our hypothesis. These results will be useful for the design of cropping systems that enhance the biological regulation of pests. Keywords Apparent competition, Cosmopolites sordidus, cover crop, diet, Musa spp., predation rate, Solenopsis geminata, stable isotope. ...
... with our hypothesis. These results will be useful for the design of cropping systems that enhance the biological regulation of pests. Keywords Apparent competition, Cosmopolites sordidus, cover crop, diet, Musa spp., predation rate, Solenopsis geminata, stable isotope. ...
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... available N (134 kg/ha) compared to the district practice wheat / pasture treatments (95 kg/ha) or the high input intensive rotations with no legume component (79 kg/ha). Subsoil constraints (salt and boron) at this site are only moderate but they still limit the uptake of all the potentially availa ...
... available N (134 kg/ha) compared to the district practice wheat / pasture treatments (95 kg/ha) or the high input intensive rotations with no legume component (79 kg/ha). Subsoil constraints (salt and boron) at this site are only moderate but they still limit the uptake of all the potentially availa ...
Lesson Plan - Growing Soybeans
... F. Weed problems should be handled early so that yield is not reduced. Tilling before planting and when plants are young is one method of weed control. Pre-emergence herbicides are also used to control weeds. The use of genetically modified soybeans that can withstand selected herbicides is another ...
... F. Weed problems should be handled early so that yield is not reduced. Tilling before planting and when plants are young is one method of weed control. Pre-emergence herbicides are also used to control weeds. The use of genetically modified soybeans that can withstand selected herbicides is another ...
Stable Isotope Ecology in the OmoTurkana Basin
... ambient CO2 of about 380 ppmV) and oxygen is 210,000 ppmV. In such atmospheres with a O2:CO2 ratio 800, C3 plants have a tendency to make ‘‘mistakes,’’ and the oxygenconsuming reaction takes place. This problem is exacerbated by high temperatures. In effect, the oxygen reaction ‘‘runs away’’ at hi ...
... ambient CO2 of about 380 ppmV) and oxygen is 210,000 ppmV. In such atmospheres with a O2:CO2 ratio 800, C3 plants have a tendency to make ‘‘mistakes,’’ and the oxygenconsuming reaction takes place. This problem is exacerbated by high temperatures. In effect, the oxygen reaction ‘‘runs away’’ at hi ...
Chronic nitrogen deposition alters the structure and function of
... respiration and accelerate nutrient leaching in laboratory microcosms (Heneghan and Bolger 1996). However, our knowledge is incomplete regarding the in situ response of soil fauna to anthropogenic N deposition and potential feedbacks that could modify rates of litter decomposition. Previous studies ...
... respiration and accelerate nutrient leaching in laboratory microcosms (Heneghan and Bolger 1996). However, our knowledge is incomplete regarding the in situ response of soil fauna to anthropogenic N deposition and potential feedbacks that could modify rates of litter decomposition. Previous studies ...
Humus Information Sheet - oly-wa.us
... Humus is a natural body; it is a composite entity just as are plant. animal and microbial substances; it is even much more complex chemically , since all of these materials contribute to its formation. Humus possesses certain specific physical. chemical and biological properties which make it distin ...
... Humus is a natural body; it is a composite entity just as are plant. animal and microbial substances; it is even much more complex chemically , since all of these materials contribute to its formation. Humus possesses certain specific physical. chemical and biological properties which make it distin ...
POCKET GOPHERS Their Ecology and Management What do they look like?
... pulling plants down through the soil into the burrow. Leaves and stems are eaten during the ...
... pulling plants down through the soil into the burrow. Leaves and stems are eaten during the ...
FEEDBACK IN THE PLANT-SOIL SYSTEM Joan G
... factors (e.g., temperature sensitivity) and combine these models with mechanistic formulations to describe processes of interest (productivity, biomass, nutrient availability). Others focus on formulations resulting from microbial physiology (e.g., growth based on assimilation efficiencies, stoichio ...
... factors (e.g., temperature sensitivity) and combine these models with mechanistic formulations to describe processes of interest (productivity, biomass, nutrient availability). Others focus on formulations resulting from microbial physiology (e.g., growth based on assimilation efficiencies, stoichio ...
GM Potatoes Cyst Eelworm Repellant
... The follow measures can be used in combination to minimize the threat of yield loss due to PCN and negate the need for GM potatoes: Good hygiene To reduce the spread of PCN cysts, potato clamps should be made on the land which had grown the crop. Soil from potato washing should only be tipped on the ...
... The follow measures can be used in combination to minimize the threat of yield loss due to PCN and negate the need for GM potatoes: Good hygiene To reduce the spread of PCN cysts, potato clamps should be made on the land which had grown the crop. Soil from potato washing should only be tipped on the ...
James Eldridge BC Fossorial Native Mammals
... centre of each pit encountered on the belt transect were measured, and the type of animal responsible for its creation was determined, based on shape, depth and excavation angle. Pits constructed by bilbies and bettongs were pooled because they could not be distinguished easily from each other due t ...
... centre of each pit encountered on the belt transect were measured, and the type of animal responsible for its creation was determined, based on shape, depth and excavation angle. Pits constructed by bilbies and bettongs were pooled because they could not be distinguished easily from each other due t ...
Plant functional traits and soil carbon sequestration in contrasting
... few examples that included both aboveground and belowground structures indicate that shoot and root decomposability traits might not be directly related (Wardle et al. 1998; Craine et al. 2005). Plants may even combine leaf traits typical for fast-growing ÔcompetitorsÕ with root traits typical for s ...
... few examples that included both aboveground and belowground structures indicate that shoot and root decomposability traits might not be directly related (Wardle et al. 1998; Craine et al. 2005). Plants may even combine leaf traits typical for fast-growing ÔcompetitorsÕ with root traits typical for s ...
Plant communities as drivers of soil respiration
... in nitrogen (N) but poorer in C rich structural compounds, which is more easily broken down by soil microbes and hence respired as R (Fig. 1). Slow growing plants not only acquire less C via photosynthesis but release less over time in recalcitrant litter forms that suppress decomposition and R (Fig ...
... in nitrogen (N) but poorer in C rich structural compounds, which is more easily broken down by soil microbes and hence respired as R (Fig. 1). Slow growing plants not only acquire less C via photosynthesis but release less over time in recalcitrant litter forms that suppress decomposition and R (Fig ...
General enquiries on this form should be made to:
... high for species recorded at each site. A more sophisticated capability for scenario testing will follow as models improve and are better integrated. 10. The relevance of the initial model tests to achievement of Habitat Action Plan targets and expected change in UK and country-level indicators of b ...
... high for species recorded at each site. A more sophisticated capability for scenario testing will follow as models improve and are better integrated. 10. The relevance of the initial model tests to achievement of Habitat Action Plan targets and expected change in UK and country-level indicators of b ...
Plant functional traits and soil carbon sequestration in contrasting
... few examples that included both aboveground and belowground structures indicate that shoot and root decomposability traits might not be directly related (Wardle et al. 1998; Craine et al. 2005). Plants may even combine leaf traits typical for fast-growing ÔcompetitorsÕ with root traits typical for s ...
... few examples that included both aboveground and belowground structures indicate that shoot and root decomposability traits might not be directly related (Wardle et al. 1998; Craine et al. 2005). Plants may even combine leaf traits typical for fast-growing ÔcompetitorsÕ with root traits typical for s ...
perennial pepperweed Lepidium latifolium L.
... effective herbicides cannot be applied near or over water. No biological control agents have been introduced to control perennial pepperweed because there are several important cultivated crops in the same family (canola, mustard, cabbage, and kale) as well as several threatened and endangered, nati ...
... effective herbicides cannot be applied near or over water. No biological control agents have been introduced to control perennial pepperweed because there are several important cultivated crops in the same family (canola, mustard, cabbage, and kale) as well as several threatened and endangered, nati ...
Weathering and Soils Weathering and Soils
... rock and sediments over time. -Most rocks, like granite, form under earth’s surface. -The rocks uplift and eventually make their way to earth’s surface. -Conditions on the surface are much different from inside earth. -Rocks are not used to these conditions, become unstable, and break down. There ar ...
... rock and sediments over time. -Most rocks, like granite, form under earth’s surface. -The rocks uplift and eventually make their way to earth’s surface. -Conditions on the surface are much different from inside earth. -Rocks are not used to these conditions, become unstable, and break down. There ar ...
Interactive comment on “Effect of charcoal amendments and a deep
... but cropping and degradation severity has. To my point of view there are many shortcomings which should be addressed. From the fact that runoff was higher for the lupine crops in 2013, the authors conclude that root morphology, root depths and tillage practice affect runoff. Although this is seem li ...
... but cropping and degradation severity has. To my point of view there are many shortcomings which should be addressed. From the fact that runoff was higher for the lupine crops in 2013, the authors conclude that root morphology, root depths and tillage practice affect runoff. Although this is seem li ...
soil amending attributes of seaweed
... However, grains with higher test weights (an indication of quality) have been recorded. Graziers have also reported livestock preference for seaweed treated pastures. 4. Increased resistance to insects and disease – There is experimental evidence which indicates the presence of antioxins in seaweed ...
... However, grains with higher test weights (an indication of quality) have been recorded. Graziers have also reported livestock preference for seaweed treated pastures. 4. Increased resistance to insects and disease – There is experimental evidence which indicates the presence of antioxins in seaweed ...
Does organic farming reduce environmental impacts?
... different studies was wide due to differences in the systems compared and research methods used. The only impacts that were found to differ significantly between the systems were soil organic matter content, nitrogen leaching, nitrous oxide emissions per unit of field area, energy use and land use. ...
... different studies was wide due to differences in the systems compared and research methods used. The only impacts that were found to differ significantly between the systems were soil organic matter content, nitrogen leaching, nitrous oxide emissions per unit of field area, energy use and land use. ...
Biochar in Agricultural Systems
... manure that has a moisture content of around 95 percent must have the solids separated from the liquids before combustion is possible. Biochar is not the same as activated carbon, which is a compound used for purifying liquids and gases due to its high absorption capacity. Biochar would need to go t ...
... manure that has a moisture content of around 95 percent must have the solids separated from the liquids before combustion is possible. Biochar is not the same as activated carbon, which is a compound used for purifying liquids and gases due to its high absorption capacity. Biochar would need to go t ...
Living apart together Veen, Geertje Franciska
... feedback effects, because a stimulation of soil nutrient cycling will result in more positive plant-soil feedback, and vice versa. Thus, herbivores can modify plant-soil feedback interactions via the indirect pathway of soil nutrient cycling, which has important consequences for plant growth on the ...
... feedback effects, because a stimulation of soil nutrient cycling will result in more positive plant-soil feedback, and vice versa. Thus, herbivores can modify plant-soil feedback interactions via the indirect pathway of soil nutrient cycling, which has important consequences for plant growth on the ...
No-till farming
No-till farming (also called zero tillage or direct drilling) is a way of growing crops or pasture from year to year without disturbing the soil through tillage. No-till is an agricultural technique which increases the amount of water that infiltrates into the soil and increases organic matter retention and cycling of nutrients in the soil. In many agricultural regions it can reduce or eliminate soil erosion. It increases the amount and variety of life in and on the soil, including disease-causing organisms and disease suppression organisms. The most powerful benefit of no-tillage is improvement in soil biological fertility, making soils more resilient. Farm operations are made much more efficient, particularly improved time of sowing and better trafficability of farm operations.