A synthetic review of feedbacks and drivers of shrub encroachment
... shrubs as the dominant vegetation (van de Koppel et al., 2002). However, livestock will often consume and transport viable shrub seeds (Archer 1989, Brown and Archer 1999, Fredrickson et al., 2006), thus serving as a vector and a facilitator for the establishment of the seeds of shrub species in the ...
... shrubs as the dominant vegetation (van de Koppel et al., 2002). However, livestock will often consume and transport viable shrub seeds (Archer 1989, Brown and Archer 1999, Fredrickson et al., 2006), thus serving as a vector and a facilitator for the establishment of the seeds of shrub species in the ...
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” ...
L-14 Land Degradation and a Monitoring Framework in
... functions and services (including those of agro-ecosystems and urban systems) which support society and development. Since it is a process, its assessment and monitoring should be viewed with time-factor in mind. Many studies which: 1) make one-time measurements and 2) compare results of one-time me ...
... functions and services (including those of agro-ecosystems and urban systems) which support society and development. Since it is a process, its assessment and monitoring should be viewed with time-factor in mind. Many studies which: 1) make one-time measurements and 2) compare results of one-time me ...
chickpea nitrogen fixation increases production of subsequent
... harvested and removed and therefore the residual effect must largely be derived from the under ground plant biomass and the leaf fall during crop growth. Several researchers have shown that in most cases legumes generally leave 17 - 23 kg N ha-1 in the form of nitrate in soil (Rao et al., 1987; Herr ...
... harvested and removed and therefore the residual effect must largely be derived from the under ground plant biomass and the leaf fall during crop growth. Several researchers have shown that in most cases legumes generally leave 17 - 23 kg N ha-1 in the form of nitrate in soil (Rao et al., 1987; Herr ...
Agroecology and the Search for a Truly Sustainable Agriculture
... concentrated resources for specialist crop herbivores and have increased the areas available for immigration of pests. This simplification has also reduced environmental opportunities for natural enemies. Consequently, pest outbreaks often occur when large numbers of immigrant pests, inhibited popul ...
... concentrated resources for specialist crop herbivores and have increased the areas available for immigration of pests. This simplification has also reduced environmental opportunities for natural enemies. Consequently, pest outbreaks often occur when large numbers of immigrant pests, inhibited popul ...
Fertilizer Primer - College of Agricultural and Life Sciences
... Apply fertilizers uniformly and accurately to avoid uneven plant growth, increase fertilizer effectiveness, and reduce risks to the environment, including contamination of surface and ground waters. (Note: If you are applying anhydrous ammonia you need to follow specific safety guidelines as this is ...
... Apply fertilizers uniformly and accurately to avoid uneven plant growth, increase fertilizer effectiveness, and reduce risks to the environment, including contamination of surface and ground waters. (Note: If you are applying anhydrous ammonia you need to follow specific safety guidelines as this is ...
Land Degradation - SAARC Agriculture Centre
... different land use systems. Present paper reports the extent, type and severity of land degradation in south Asian countries. Impact of land degradation contributing factors including population and poverty, climate change and natural hazards, agriculture globalization, overgrazing and livestock, su ...
... different land use systems. Present paper reports the extent, type and severity of land degradation in south Asian countries. Impact of land degradation contributing factors including population and poverty, climate change and natural hazards, agriculture globalization, overgrazing and livestock, su ...
绵羊口液对羊草（Leymus chinensis）再生生长的作用 及其生理机制
... changes surface structure, affecting transfer of heat and water between soil and the atmosphere Direct effects on germination and establishment and indirect effects on resource availability and ...
... changes surface structure, affecting transfer of heat and water between soil and the atmosphere Direct effects on germination and establishment and indirect effects on resource availability and ...
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. ...
Biodiversity Guide Farmers and Certifiers - WFA - NOFA-NY
... a good farm must be one where the wild fauna and flora have lost acreage without losing their existence.”—Aldo Leopold ...
... a good farm must be one where the wild fauna and flora have lost acreage without losing their existence.”—Aldo Leopold ...
2009. Phytotechnology Technical and Regulatory Guidance and
... including but not limited to warranties of the accuracy or completeness of information contained in the product or the suitability of the information contained in the product for any particular purpose. The technical implications of any information or guidance contained in ITRC products may vary wid ...
... including but not limited to warranties of the accuracy or completeness of information contained in the product or the suitability of the information contained in the product for any particular purpose. The technical implications of any information or guidance contained in ITRC products may vary wid ...
Similar biotic factors affect early establishment and abundance of an
... sucrose at a rate of 1,000 g C per m2 in three equal applications during the course of the growing season). Application of sucrose, which is 46% C in a molecular form readily available to microbes, results in immobilization of plant-available N in the soil solution. These rates are consistent with o ...
... sucrose at a rate of 1,000 g C per m2 in three equal applications during the course of the growing season). Application of sucrose, which is 46% C in a molecular form readily available to microbes, results in immobilization of plant-available N in the soil solution. These rates are consistent with o ...
Similar biotic factors affect early establishment and abundance of an
... sucrose at a rate of 1,000 g C per m2 in three equal applications during the course of the growing season). Application of sucrose, which is 46% C in a molecular form readily available to microbes, results in immobilization of plant-available N in the soil solution. These rates are consistent with o ...
... sucrose at a rate of 1,000 g C per m2 in three equal applications during the course of the growing season). Application of sucrose, which is 46% C in a molecular form readily available to microbes, results in immobilization of plant-available N in the soil solution. These rates are consistent with o ...
linking fungal diversity and community dynamics to terrestrial
... studies showing prevalent stimulation of fungal decomposer activities in soils by adding recalcitrant organic compounds or lignocellulose-rich plant materials (Paterson et al., 2008; Rousk et al., 2010a). Several studies have also indicated an inverse relationship between fungal biomass and pH (Båa ...
... studies showing prevalent stimulation of fungal decomposer activities in soils by adding recalcitrant organic compounds or lignocellulose-rich plant materials (Paterson et al., 2008; Rousk et al., 2010a). Several studies have also indicated an inverse relationship between fungal biomass and pH (Båa ...
Phosphites as Fertilizers - Alabama Cooperative Extension System
... polyphosphate liquid fertilizer sold most often as 10-34-0) CaHPO4 + Ca (H2PO4)2 . . . calcium phosphates, a primary component of triple superphosphate or concentrated superphosphate (0-45-0) Analytical techniques used in soil testing and in fertilizer regulatory laboratory are specifically selected ...
... polyphosphate liquid fertilizer sold most often as 10-34-0) CaHPO4 + Ca (H2PO4)2 . . . calcium phosphates, a primary component of triple superphosphate or concentrated superphosphate (0-45-0) Analytical techniques used in soil testing and in fertilizer regulatory laboratory are specifically selected ...
Soil detritivore functioning in heterogeneously contaminated soils
... four locations with four distinct contamination profiles in the field were monitored for three years (Chapter 3). The results showed that the earthworm species Aporrectodea caliginosa had higher biomass in clean locations, whereas Allolobophora chlorotica showed higher biomass in more humid and more ...
... four locations with four distinct contamination profiles in the field were monitored for three years (Chapter 3). The results showed that the earthworm species Aporrectodea caliginosa had higher biomass in clean locations, whereas Allolobophora chlorotica showed higher biomass in more humid and more ...
interaksi ekologis dalam manajemen agroekosistem
... parameters. Transects help to ensure that all relevant information is collected and clearly organised for each agroecological zone; they also assist in the analysis by facilitating comparisons and identifying important relationships among the zones. ...
... parameters. Transects help to ensure that all relevant information is collected and clearly organised for each agroecological zone; they also assist in the analysis by facilitating comparisons and identifying important relationships among the zones. ...
Plant Diversity Surpasses Plant Functional Groups and Plant
... complex plant communities [29]. Acknowledging the mixed evidence on the correlation between above- and belowground density and diversity, Hooper et al. [10] highlighted the need to acquire a mechanistic understanding of this relationship and ascribed this topic top research priority. Most previous s ...
... complex plant communities [29]. Acknowledging the mixed evidence on the correlation between above- and belowground density and diversity, Hooper et al. [10] highlighted the need to acquire a mechanistic understanding of this relationship and ascribed this topic top research priority. Most previous s ...
No-till farming
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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.