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Joost
Joost

... LEO is an in between world: detailed measurements, simplicity and control of the lab experiment and the size of field experiments ...
0231 EN
0231 EN

... Since the adoption of the 2002 Communication2, an effort has been made to ensure that recently adopted environment policy initiatives on waste, water, air, climate change, chemicals, flooding, biodiversity and environmental liability will contribute to improving soil protection. In particular, the D ...
Weathering, soil formation and initial ecosystem evolution on a
Weathering, soil formation and initial ecosystem evolution on a

... the mechanisms and rates of mineral dissolution have been studied extensively, there are still large discrepancies between dissolution rates observed in the laboratory and in the field. The reasons are related e.g. to different surface areas of minerals in the field, the formation of secondary precipi ...
Advice Summary - Product No. 65193, Application No. 50378
Advice Summary - Product No. 65193, Application No. 50378

... Published (public domain) information and thirteen reports from small plot replicated trials conducted in Spain, Costa Rica and South Africa—in both covered and field cropping situations including a number of different fruit and vegetable crops—were provided in support of the proposed registration. ...
A Biotic Revolution - Perfect Blend Biotic Fertilizers
A Biotic Revolution - Perfect Blend Biotic Fertilizers

... What are mycorrhizal fungi? Mycorrhizae is a root fungus that establishes colonies in and around plant roots, sending out thousands of tiny tubes into the surrounding soils to find and uptake plant nutrients. These hollow tubes, known as hyphae, are primary conduits of minerals, soil-contained amino ...
Soil acidity
Soil acidity

... It is primarily the ionic form of nutrients that plants are able to take up into their roots. Many of these nutrients are taken up in the cationic forms, so it is important that the soil be able to supply these. Most soils have at least some ability to hold onto these ions at the negatively charged ...
Stress-strain behaviour of agricultural soils
Stress-strain behaviour of agricultural soils

... WP 5. Stress-strain behaviour simulated with DEM (Jean-Yves Delenne) Objectives and approach: (i) To implement the mechanical strength as a probabilitydistribution function in DEM, and (ii) to simulate traffic on the idealized discrete elements soil. Experiments of WP3 and WP4 will be used to parame ...
Revised Short Version: Using a Flower to Combat Desertification
Revised Short Version: Using a Flower to Combat Desertification

... of Turkey, close to the Syrian and Iraqi borders. Local agriculture is dominated by cotton mono-cropping, which accounts for 70% of agricultural production, but requires frequent irrigation (seven to eight times a year). This leads to increased salinity and the loss of nutrients in an already water- ...
Fertilizers & Nutrients
Fertilizers & Nutrients

... Organic vs. Inorganic • Advantages of Inorganic Fertilizers • Can make desired ratio of nutrients. ...
Resume - AgriStaffing.com
Resume - AgriStaffing.com

... Carried out series of greenhouse experiments to evaluate effects of potential bacterial antagonists on control of bottom rot disease caused by R. solani AG1-IB on lettuce Isolated bacterium that could be considered as strong biocontrol agent and used for suppression of this pathogen Assessed the env ...
fly ash amendment of sandy soils to improve water and
fly ash amendment of sandy soils to improve water and

... when irrigated every 3rd or 4th d. Irrigation at 40% replacement of net evaporation summed and applied every 3rd d did not adversely impact on turf growth or quality and so may be a suitable watering schedule for maintenance of turf, with minimal risks of deep drainage. In summary, amendment of sand ...
Nitrogen Deposition Effects on Coastal Sage Vegetation of Southern California 1 Abstract
Nitrogen Deposition Effects on Coastal Sage Vegetation of Southern California 1 Abstract

... plots (data not shown, but small-podded mustard increased from 17 to 29 percent after N fertilization on unburned plots). None of the other introduced grasses and none of the native species responded significantly at Box Springs Mountain in the burned plots (table 1). The introduced grasses included ...
Vegetation and Soil analysis ‎
Vegetation and Soil analysis ‎

... This is the largest eco-region of the Arabian Peninsula, stretching from the Yemeni border to the Arabian Gulf and from Oman to Jordan and Iraq. Within this area lies a vast wilderness of sand. It is probably the biggest continuous body of sand anywhere in the world, with an area of over 500,000 km2 ...
Crop Protection Research Institute PESTICIDE USE AND
Crop Protection Research Institute PESTICIDE USE AND

... has exceeded 80%. Furthermore, less than 0.1% of tallgrass prairie remains where soils and topography has been conducive to crop production. Consequently, a major factor affecting grassland birds over millions of hectares of the United States is that the modern agricultural landscape now typically o ...
Interpreting Nitrate Concentration in Tile Drainage Water
Interpreting Nitrate Concentration in Tile Drainage Water

... Tile Spacing: Since inter-tile spacing alters the rate of water movement through the soil, it should also affect water quality. A study at the WQFS compared the impact of the recommended tile spacing (66 feet) with a narrower spacing (33 feet) and a wider spacing (100 feet). The recommended spacing ...
Chemical weathering
Chemical weathering

... Different regions have different climates that affect soil development. Parent rock affects soil formation and type of vegetation that grows in a region. Time affects soil development because the longer the weathering has occurred, the less the soil resembles the parent rock. Soil on steep slopes de ...
Effect of Compost and Nitrogen Fertilization on Yield and Nutrients
Effect of Compost and Nitrogen Fertilization on Yield and Nutrients

... (200 kg Nfed-1). Under saline conditions, when compost was added, rice yield was increased compared with control (without compost). Rice in the value of each of straw, grain and 1000 grain weight was about 15.7, 29.8 and 33%, respectively [1]. The data representing N, P, K, Fe, Zn and Mn uptake of s ...
AWG 2010 Spring Meeting Western Washington University May 15
AWG 2010 Spring Meeting Western Washington University May 15

... China has an exponentially growing population, which is causing their available land space to shrink quickly. They are experiencing water shortages, desertification, lack of arable land to farm on, and a huge grain shortage. Due to all these things, China has been forced to start importing a mass qu ...
The development of sheet erosion on intensively used soils
The development of sheet erosion on intensively used soils

... order gullies are concave and cut into the straight slopes. In the Zavolzhie region, concave slopes prevail although both straight and convex forms occur at lower levels as a result of dissection. At their foot the convex slopes are replaced by straight slopes of 10-30' which are associated with the ...
Networks for Research Collaboration In the Dryland West Asia
Networks for Research Collaboration In the Dryland West Asia

... a responseto fertilizer is likely. Fertilizer P rates of 10 to 20 kg ha-~ were recommended, depending on the extent of deficiency. Althoughsimilar criteria have beendevelopedfor nitrate, the test is less reliable thanfor P, since it is influenced by the cropping system, nitrate mobility with varying ...
Does diversity beget diversity? A case study of crops
Does diversity beget diversity? A case study of crops

... conventional cutoff of p = 0.05. The core richness of monocultures is not related to crop species identity if crop mass is factored (Analysis of covariance, Table 2). The total weed richness of monocultures is significantly related to the identity of the crop (Fig. 3, Table 2: ANOVA). The non-legumi ...
Contaminated Soil Management WM-7
Contaminated Soil Management WM-7

... from contaminated soil and highly acidic or alkaline soils by conducting pre-construction surveys, inspecting excavations regularly, and remediating contaminated soil promptly. Suitable Applications Contaminated soil management is implemented on construction projects in highly urbanized or industria ...
IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT)
IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT)

... important due to the past intensive development and exploitation led to the numerous land degradation. Soils have special characters which are important in land management. Soil is one of the important resources which have numerous important functions in ecosystem. Soils are important substrates for ...
this PDF file - Spanish Journal of Soil Science
this PDF file - Spanish Journal of Soil Science

... field  in  different  countries  is  the  most  frequently  cited  indication  of  such  a  crisis  (Baveye  2006; Hartemink et al. 2008). The disappearance of the term “soil” from many subjects and  departments,  together  with  the  merging  of  soil  science  with  other  more  general  or  more  ...
Phytophthora Root and Stem Rot (PRR) of Soybean
Phytophthora Root and Stem Rot (PRR) of Soybean

... the potential for damage. Studies in Iowa have shown that reduced tillage practices, especially no-till, can increase the potential for damage by maintaining a high concentration of the resting spores of the fungus in the soil layers where the root systems of the new soybean crop will grow. The dise ...
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Cover crop

A cover crop is a crop planted primarily to manage soil erosion, soil fertility, soil quality, water, weeds, pests, diseases, biodiversity and wildlife in an agroecosystem (Lu et al. 2000), an ecological system managed and largely shaped by humans across a range of intensities to produce food, feed, or fiber. Currently, not many countries are known for using the cover crop method.Cover crops are of interest in sustainable agriculture as many of them improve the sustainability of agroecosystem attributes and may also indirectly improve qualities of neighboring natural ecosystems. Farmers choose to grow and manage specific cover crop types based on their own needs and goals, influenced by the biological, environmental, social, cultural, and economic factors of the food system in which farmers operate (Snapp et al. 2005).
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