Manure Management in the (Sub-)Tropics - Wageningen UR E
... N is contained in the organic matter, while the ammoniacal N is present as either ammonium (NH4+) or as free ammonia (NH3). Exposed to open air, NH4+ is transformed into gaseous NH3 that is usually lost into the ...
... N is contained in the organic matter, while the ammoniacal N is present as either ammonium (NH4+) or as free ammonia (NH3). Exposed to open air, NH4+ is transformed into gaseous NH3 that is usually lost into the ...
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 ...
THE RELATION BETWEEN THE VALUES pH, V AND S (HUMUS
... figures given for V and S(humus) are not exact and are to be regarded as merely a first approximation. As soon as time allows the exchangeable Mg, K and Na will be determined. If possible the various values S and V will then also be given separately for the humus* and the clay*substance. The figures ...
... figures given for V and S(humus) are not exact and are to be regarded as merely a first approximation. As soon as time allows the exchangeable Mg, K and Na will be determined. If possible the various values S and V will then also be given separately for the humus* and the clay*substance. The figures ...
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 ...
Erosion and Sediment Control - International Erosion Control
... Sediment control measures aim to trap and retain sediment displaced by up-slope erosion processes. ...
... Sediment control measures aim to trap and retain sediment displaced by up-slope erosion processes. ...
11 The Functional Role of Soil Seed Banks in Natural Communities
... Leubner-Metzger, 2006). Seeds in the soil seed bank may occur in or on the soil, but in many situations, there is a continuity between seeds at the surface, partly buried and completely buried seeds (Thompson, 2000; Benvenuti, 2007). In practice, it is rarely possible to properly separate buried see ...
... Leubner-Metzger, 2006). Seeds in the soil seed bank may occur in or on the soil, but in many situations, there is a continuity between seeds at the surface, partly buried and completely buried seeds (Thompson, 2000; Benvenuti, 2007). In practice, it is rarely possible to properly separate buried see ...
invasive ecology of exotic old world bluestem
... dissertation represents this collaborative effort which we published in the journal, Biological Invasions in 2012. This dissertation also benefited from the helpful feedback provided by persons of the Ecosystem Ecology Group at the University of Kentucky (Dr. Mary Arthur’s lab group, Dr. Rebecca McC ...
... dissertation represents this collaborative effort which we published in the journal, Biological Invasions in 2012. This dissertation also benefited from the helpful feedback provided by persons of the Ecosystem Ecology Group at the University of Kentucky (Dr. Mary Arthur’s lab group, Dr. Rebecca McC ...
Review article Annual intercrops: an alternative pathway for
... widely recognized that much of this may have come at the price of sustainability (Tilman et al., 2002; Lichtfouse et al., 2009). This is because modern farming systems imply the simplification of the structure of the environment over vast areas, replacing natural plant diversity with only a limited ...
... widely recognized that much of this may have come at the price of sustainability (Tilman et al., 2002; Lichtfouse et al., 2009). This is because modern farming systems imply the simplification of the structure of the environment over vast areas, replacing natural plant diversity with only a limited ...
An efficient microbiological growth medium for screening phosphate
... A novel defined microbiological growth medium, National Botanical Research Institute's phosphate growth medium (NBRIP), which is more efficient than Pikovskaya medium (PVK), was developed for screening phosphate solubilizing microorganisms. In plate assay the efficiency of NBRIP was comparable to PV ...
... A novel defined microbiological growth medium, National Botanical Research Institute's phosphate growth medium (NBRIP), which is more efficient than Pikovskaya medium (PVK), was developed for screening phosphate solubilizing microorganisms. In plate assay the efficiency of NBRIP was comparable to PV ...
Chapter V Vascular plant litter input in subarctic
... The consequences of shifts in the soil invertebrate community structure might affect decomposition rates, since soil invertebrates are functionally dissimilar in their preferences and activities with respect to consumption of both litter and litter-dwelling microbes (Faber and Verhoef 1991; Setälä e ...
... The consequences of shifts in the soil invertebrate community structure might affect decomposition rates, since soil invertebrates are functionally dissimilar in their preferences and activities with respect to consumption of both litter and litter-dwelling microbes (Faber and Verhoef 1991; Setälä e ...
The Physical Environment of Rupestrian Grasslands (Campos
... factor), drainage and landscape stability and evolution. Landforms (geomorphological attributes) affect the RGC at continental scales (high landsurfaces), regional scales (regional landforms, such as escarpments, valleys, slopes) and local scales (soil depth, stoniness, rockiness, drainage). The mos ...
... factor), drainage and landscape stability and evolution. Landforms (geomorphological attributes) affect the RGC at continental scales (high landsurfaces), regional scales (regional landforms, such as escarpments, valleys, slopes) and local scales (soil depth, stoniness, rockiness, drainage). The mos ...
The role of diversity in savannas: modelling plant functional diversity
... describes the soil composition with respect to grain sizes, is a first order determinant for the potential of soils to take up water (infiltration) as well as to hold plant available water (Fernandez-Illescas et al., 2001). For example, local patches of coarse textured soil allow more water to infil ...
... describes the soil composition with respect to grain sizes, is a first order determinant for the potential of soils to take up water (infiltration) as well as to hold plant available water (Fernandez-Illescas et al., 2001). For example, local patches of coarse textured soil allow more water to infil ...
Factors influencing restoration success of abandoned agricultural
... Carla Mae Gray, B.A., University of North Carolina, Wilmington M.A., Appalachian State University Thesis Chairperson: Gabrielle L. Katz Abandonment of agricultural fields is a common occurrence worldwide. Natural recovery, or succession, often occurs following land abandonment. However, in arid regi ...
... Carla Mae Gray, B.A., University of North Carolina, Wilmington M.A., Appalachian State University Thesis Chairperson: Gabrielle L. Katz Abandonment of agricultural fields is a common occurrence worldwide. Natural recovery, or succession, often occurs following land abandonment. However, in arid regi ...
Mycorrhizae – symbiotic mediators of rhizosphere and
... cellular components. These hyphae sometimes coalesce into macroscopic structures called rhizomorphs that attach the mycelium to sporocarps or can be morphologically similar to xylem and serve in water uptake (Duddridge et al. 1980). The external mycelium of EM fungi may be more extensive than that o ...
... cellular components. These hyphae sometimes coalesce into macroscopic structures called rhizomorphs that attach the mycelium to sporocarps or can be morphologically similar to xylem and serve in water uptake (Duddridge et al. 1980). The external mycelium of EM fungi may be more extensive than that o ...
managing pulses to minimize frost damage
... Flowering time: Long-season pulse varieties or species may escape frost because they flower later in the growing season, when frost incidence can be lower (eg chickpeas). Delayed sowing of later flowering varieties or species, rather than sowing them first, further reduces frost risk or exposure. Cr ...
... Flowering time: Long-season pulse varieties or species may escape frost because they flower later in the growing season, when frost incidence can be lower (eg chickpeas). Delayed sowing of later flowering varieties or species, rather than sowing them first, further reduces frost risk or exposure. Cr ...
Organic Production Systems Guidelines
... HACCP system, can provide important food health and safety assurances, whilst ensuring other product quality requirements such as taste, appearance and presentation are maintained in every consignment. For organic products to remain distinguished in consumer perceptions, the spectrum and integrity o ...
... HACCP system, can provide important food health and safety assurances, whilst ensuring other product quality requirements such as taste, appearance and presentation are maintained in every consignment. For organic products to remain distinguished in consumer perceptions, the spectrum and integrity o ...
Schedonorus pratensis
... assumed to have effects on litter decomposition and nutrient cycling (Saikkonen et al. 2015). There ...
... assumed to have effects on litter decomposition and nutrient cycling (Saikkonen et al. 2015). There ...
Backyard Magic
... kitchen wastes. Giving back some of the nourishment they took from the earth made good common sense, and it still does! In today’s New Brunswick, composting is a traditional idea with a broad new appeal. It’s making a strong comeback in all parts of the Province, as people look for positive things ...
... kitchen wastes. Giving back some of the nourishment they took from the earth made good common sense, and it still does! In today’s New Brunswick, composting is a traditional idea with a broad new appeal. It’s making a strong comeback in all parts of the Province, as people look for positive things ...
Method of using an apparatus containing a paddle for
... bacteria that utilizes hydrocarbons as their sole metabolic carbon source or as a cometabolite. The bacteria produce enzymes, which catalytically crack the covalent carbon-hydrogen bonds of hydrocarbons so that the smaller resulting molecules may pass through the cell wall of the bacterial organism ...
... bacteria that utilizes hydrocarbons as their sole metabolic carbon source or as a cometabolite. The bacteria produce enzymes, which catalytically crack the covalent carbon-hydrogen bonds of hydrocarbons so that the smaller resulting molecules may pass through the cell wall of the bacterial organism ...
Food Web Responses to Augmenting
... first on fibrous roots and later on the cortex of major roots. Wounding of the major roots by these insects facilitates infection by Phytophthora spp. The resulting pest-disease complex can kill trees, and orchards are sometimes abandoned within several years after the insect is first detected. Mana ...
... first on fibrous roots and later on the cortex of major roots. Wounding of the major roots by these insects facilitates infection by Phytophthora spp. The resulting pest-disease complex can kill trees, and orchards are sometimes abandoned within several years after the insect is first detected. Mana ...
Using turnips to reduce soil K loading on the effluent block
... paddocks is sensitive to the proportion of the diet that is turnips, their K concentration and very sensitive to the time required for the cows to graze the turnips and time they spend on the pasture. The most efficient transfer of K is achieved if the turnip grazing time, and time in yards and race ...
... paddocks is sensitive to the proportion of the diet that is turnips, their K concentration and very sensitive to the time required for the cows to graze the turnips and time they spend on the pasture. The most efficient transfer of K is achieved if the turnip grazing time, and time in yards and race ...
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 ...
Ecological Focus Area choices and their potential impacts on
... The literature shows that under the current EFA rules and conventional farming practices it is unlikely that most nitrogen-fixing crops grown on EFAs will provide significant benefits for biodiversity. The main exception to this being extensively managed nitrogen-fixing forage and green manure crops ...
... The literature shows that under the current EFA rules and conventional farming practices it is unlikely that most nitrogen-fixing crops grown on EFAs will provide significant benefits for biodiversity. The main exception to this being extensively managed nitrogen-fixing forage and green manure crops ...
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.