Results 91 to 100 of about 9,076 (227)

Laser-induced fluorescence of organic matter from a Brazilian oxisol under sewage sludge applications. [PDF]

open access: yes, 2015
A aplicação do lodo de esgoto é utilizada como alternativa de conservação e manutenção da fertilidade dos solos sem prejudicar o ecossistema. O objetivo do presente trabalho foi avaliar a influência da aplicação de lodo de esgoto sobre a matéria orgânica
BERTON, R.   +6 more
core  

Soil organic matter as a function of nitrogen fertilization in crop successions Matéria orgânica do solo em função de adubação nitrogenada em sucessões de culturas

open access: yesScientia Agricola, 2005
The interdependence between the C and N cycles is reflected by the levels of soil organic matter (SOM). SOM and organic C levels in water soluble (C-WS) humic acids (C-HA), fulvic acids (C-FA), and humin fractions (C-H) were evaluated through the classic
Renato Yagi   +4 more
doaj   +1 more source

ВПЛИВ КОМПЛЕКСНИХ МІКРОДОБРИВ НА ОСНОВНІ БІОМЕТРИЧНІ ПАРАМЕТРИ ГІБРИДІВ КУКУРУДЗИ [PDF]

open access: yes, 2014
Кукурудза завжди займала провідне місце у зерновому і кормовому балансах України. Вітчизняний науковий досвід показує, що за потенціалом продуктивності зерна та зеленої маси, кормовою й енергетичною цінністю ця культура фактично не має собі рівних і є ...
Гож, О. А.   +2 more
core  

Unexpected 13C-enrichment of organic components from wheat crop soils: evidence for the in situ origin of soil organic matter [PDF]

open access: yes, 1995
International audienceVarious organic constituents extracted from wheat and from soil organic matter have been analyzed for their carbon content, their absolute concentration and their stable carbon isotope ratios.
Balesdent, Jérôme   +6 more
core   +3 more sources

Pemanfaatan Biomassa dan Limbah Peternakan untuk Pembutan Pupuk Organik Berasam Humat Tinggi [PDF]

open access: yes, 2015
Fertilizers used by farmers today is artificial fertilizers (inorganic). The use of artificial fertilizer would cause the soil structure damaged due to artificial fertilizer will only provide nutrients to plants without regard to the soil fertility ...
Hidayah, F. F. (Fitria)
core  

Use of Palm Oil Mill Effluent (Pome) and Peat to Reduce Ammonia Volatilisation from Fertiliser Urea [PDF]

open access: yes, 1997
Ammonia (NH3) volatilization is a major pathway of nitrogen loss which limits the efficiency of urea as a fertilizer when surface-applied to soils. High pH and low cation exchange capacity in soils have been identified as the principal causes ofNH3 ...
Balasundram, Siva Kumar
core  

Organic matter fractions and soil fertility under the influence of liming, vermicompost and cattle manure

open access: yesScientia Agricola, 2003
This work evaluates effects of cattle manure vermicompost in association with liming on soil fertility indexes. The experiment was carried out in greenhouse conditions, in pots containing samples of a Typic Hapludox, medium-textured soil.
Yagi Renato   +3 more
doaj  

Organic Matter Unstability (Ripening) Evaluation in Histosolsof South-west Shahrekord

open access: yesمجله آب و خاک, 2015
Purpose of this research was evaluationof organic matter unstability (ripening) of Histosolsof south-west Shahrekord,using humusunstability indices, including ratios of humic acid (HA) to fulvic acid (FA), sum of organic material types, soluble in alkali
J. Givi, F. Raeisi, F. Dehghani
doaj   +1 more source

Pengaruh elemen gamifikasi terhadap motivasi pelajar menggunakan aplikasi quizizz [PDF]

open access: yes, 2019
Pelajar generasi abad ke 21 sekarang lebih berminat belajar menggunakan gadjet atau alat-alat komunikasi canggih tanpa wayar yang berasaskan teknologi.
Abd Nasir, Nurathirah
core  

Humine : Bildung und Wertschöpfung

open access: yes, 2018
Dissertation, RWTH Aachen University, 2018; Aachen 1 Online-Ressource (xix, 116) : Illustrationen (2018).
openaire   +2 more sources

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