Results 21 to 30 of about 80,658 (272)

The soil N cycle: new insights and key challenges [PDF]

SOIL, 2015
The study of soil N cycling processes has been, is, and will be at the centre of attention in soil science research. The importance of N as a nutrient for all biota; the ever-increasing rates of its anthropogenic input in terrestrial (agro)ecosystems ...
J. W. van Groenigen, D. Huygens, P. Boeckx, Th. W. Kuyper, I. M. Lubbers, T. Rütting, P. M. Groffman   +6 more
doaj   +1 more source

Environmental Evaluation of Potentially toxic Elements Pollution in Sediments of Waterways of Saadabad Region, South of Kashan

Journal of Economic Geology, 2021
Introduction Soil and sediments are considered to be the main places for absorption of heavy metals in contaminated environments (Priju and Narayana, 2007; Øygard and Gjengedal, 2009; Ahmed and Al-Hajri, 2009).
Rezvan Mehvari , Seyed Hassan Tabatabaei
doaj   +1 more source

Managing soil fertility in organic farming systems [PDF]

, 2002
Complex relationships exist between different components of the organic farm and the quantity and quality of the end products depend on the functioning of the whole system.
Abawi, Altieri, Atkinson, Atkinson, Atkinson, Aulakh, Balloni, Bannerjee, Barnes, Baumann, Belesky, Berry, Bethlenfalvy, Breland, Bulson, Carruthers, Chan, Clark, Clement, Dale, Davies, Davies, Dewes, Djurhuus, Doran, Douds, Drinkwater, Edwards, Flieβbach, Foulkes, Frederiksson, Grace, Handayanto, Hansen, Haynes, Hetrick, Hetrick, Hogh-Jensen, Hornby, Hu, Inderjit, Jarvis, Jawson, Jenkinson, Jenkinson, Jensen, Jones, Karasawa, Kearney, Kessel, Kim, Knudsen, Kristensen, Lampkin, Ledgard, Liebman, Liebman, Lotz, Mader, Mc Gonigle, Mueller, NIAB, Nicholson, Nix, Olofsdotter, Phelan, Poutala, Rahn, Rahn, Rajan, Rayns, SAC, Sanchez, Schmidt, Scullion, Silgram, Soil Association, Spiertz, Stein-Bachinger, Stockdale, Stockdale, Stockdale, Swift, Sylvester-Bradley, Taylor, Teasdale, Theunissen, Tisdall, Toosey, Torbet, Torstensson, UKROFS, Vanlauwe, Wander, Watson, Watson, Watson, Weinhold, Wells, Whitmore, Wild, Willey, Willson, Wolfe, Wolfe, Workneh, Wyland   +106 more
core   +1 more source

Soil Scientific Research Methods Used in Archaeology – Promising Soil Biochemistry: a Mini-review

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2015
This work seeks to review soil scientific methods that have been used and are still being used in archaeology. This review paper aims at emphasising the importance of soil science practice to archaeology thus adding a scientific analytical nature to the ...
Valerie Vranová, Theodore Danso Marfo, Klement Rejšek   +2 more
doaj   +1 more source

Catch crop strategy and nitrate leaching following grazed grass-clover [PDF]

, 2007
Cultivation of grassland presents a high risk of nitrate leaching. This study aimed to determine if leaching could be reduced by growing spring barley (Hordeum vulgare L.) as a green crop for silage with undersown Italian ryegrass (Lolium multiflorum Lam.)
Andersen A., Best E.K., Davies D.B., Djurhuus J., Eriksen J., Hansen B., Jacobsen A., Karlsson-Strese E.-M., Kyllingsbaek A., Macduff J.H., Madsen H.B., Nielsen K.A., Nielsen K.A., Shepherd M.A., Simmelsgaard S.E., Tersbol M., Thomsen I.K., Trinsoutrot I.   +17 more
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A sensitivity analysis of the prediction of the nitrogen fertilizer requirement of cauliflower crops using the HRI WELL_N computer model [PDF]

, 2001
HRI WELL_N is an easy to use computer model, which has been used by farmers and growers since 1994 to predict crop nitrogen (N) requirements for a wide range of agricultural and horticultural crops.
Draycott, A. Philip (Arthur Philip), Lillywhite, Robert, Mead, A. (Andrew), Rahn, C. (Clive), Salo, T.   +4 more
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Soil biological quality of grassland fertilized with adjusted cattle manure slurries in comparison with organic and inorganic fertilizers [PDF]

, 2009
We studied the effect of five fertilizers (including two adjusted manure slurries) and an untreated control on soil biota and explored the effect on the ecosystem services they provided.
Bloem, J., Boer, Herman, de, Brussaard, L., Eekeren, N.J.M., van, Goede, R.G.M., de, Rutgers, M., Schouten, T.   +6 more
core   +2 more sources

Influence of Inorganic Fertilizers and Organic Amendments on Plant Nutrients and Soil Enzyme Activities under Incubation

International Journal of Bio-Resource and Stress Management, 2023
An incubation experiment was carried out in the department of Soil Science and Agricultural Chemistry, ANGRAU, Hyderabad, India during 2013−14 with 12 treatments including control to study the mineralization pattern and timely release of nutrients (N, P,
R. Srinivasan, K. Jeevan Rao, S. K. Reza, Shelton Padua, D. Dinesh, S. Dharumarajan   +5 more
doaj  

Nutrient supply from organic amendments applied to unvegetated soil, lettuce and orchardgrass [PDF]

, 2006
Organic sources of nutrients are increasingly being used in horticultural and certified organic production. The nutrient-supplying potentials of poultry manure compost (PM), feather meal (FM), alfalfa meal (AA) and vermicastings (VC) and an unamended ...
Astatkie, T., Hammermeister, A.M., Jeliazkova, E.A., Martin, R.C., Warman, P.R.   +4 more
core   +1 more source

Sources of nitrogen for winter wheat in organic cropping systems [PDF]

, 2013
In organic cropping systems, legumes, cover crops, residue incorporation, and manure application are used to maintain soil fertility, but the contributions of these management practices to soil nitrogen (N) supply remain obscure.
Amato, Anderson, Askegaard, Askegaard, Bent T. Christensen, Biederbeck, Buchmann, Carpenter-Boggs, Cavigelli, Chirinda, Christensen, Christensen, Christensen, Christensen, Constantin, Cookson, Djurhuus, Doltra, Franzluebbers, Gregorich, Hanselman, ICROFS, Jørgen E. Olesen, Kallenbach, Kanazawa, Keeney, Keeney, Luxhøi, Mulvaney, Myrold, Olesen, Olesen, Olesen, Olesen, Per Schjønning, Petersen, Petersen, Petersen, Raison, Ros, Schjønning, Schomberg, Six, Søren Christensen, Søren O. Petersen, Thomsen, Thomsen, Thomsen, Trinsoutrot, Wallenstein, Walley, Wander, Whalen, Yu   +53 more
core   +1 more source