Results 91 to 100 of about 155,696 (253)
Les cultures intermédiaires pièges à nitrate (CIPAN) et engrais verts : protection de l'environnement et intérêt agronomique [PDF]
Biotechnologie, Agronomie, Société et Environnement, 2010 Autumn cover crops and green manures: environment protection and agronomic interest. Due to the evolution of the environmental policy, practice of green manure cropping has been replaced by autumn cover crops in order to take up nitrate residues of the ...
Destain JP., Reuter V., Goffart JP.
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Notes on Seychelles mosses : 5., mosses of Frégate Island [PDF]
, 2000 In May 1997, the first collections of bryophytes were made on Frégate island, Seychelles. A list of collections is provided.
O’Shea, Brian J.
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Soil management in organic fruit growing [PDF]
, 2000 In the EU-standards you will find a period of three years for converting your orchard from conventional into organic. But conversion of your way of thinking about the orchard system and conversion of your root system and soil will take double time.
Bloksma, Joke
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Приложение на диелектричната спектроскопия за анализ на въздушно изсушени почви
Почвознание, агрохимия и екология, 2013 Measurements of the electric conductivity, σ, and relative dielectric permittivity, εr, were conducted (0.1 Hz – 15 MHz) on 40 air-dried soil probes that were subsequently analyzed for pH, iron and heavy metal concentrations and organic matter.
ЛИЛКО ДОСПАТЛИЕВ +4 more
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Съдържание на хумус в почвите от Силистренска област
Почвознание, агрохимия и екология, 2011 The summarized data about the humus content and humus horizons depth in soils located in the Silistra district are shown in the present paper. The major data from soil map in а scale 1: 10 000 аrе also use to divide soils into soil agrogroups аnd ...
Венета Кръстева +2 more
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Bioagro, 2009 La pulpa de café (PC) es un subproducto con un alto potencial de contaminación de suelos y aguas si no se trata adecuadamente. Se caracterizaron química y biológicamente composts a base de PC en la zona productora de Caspito, municipio Andrés Eloy Blanco,
Francis Pierre +3 more
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Stability of salts and complexes of humic acids [PDF]
, 2009 Základem práce je studium vlivu přítomnosti kovů inkorporovaných do struktury huminových látek při tepelné zátěži za přítomnosti vzdušného kyslíku.
Nováčková, Kristýna
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DOC trail: soil organic matter quality and soil aggregate stability in organic and conventional soils [PDF]
, 2000 Conclusion Soil organic matter quality is affected by the agricultural systems of the DOC trial. System effects on the chemical composition, however, were smaller than those on the living organisms in soil and their functions.
Eyhorn, Frank +4 more
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Secondary succession of overgrazed Pannonian sandy grasslands [PDF]
, 2008 We assessed vegetation changes on acidic sandy soils in permanent plots to follow secondary succession after cessation of intensive goose breeding in E Hungary.We also aimed to estimate the time required for vegetation regeneration and indicate ...
Matus, Gábor +3 more
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