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1
REDUCTION OF ENVIRONMENTAL POLLUTION THROUGH DECREASE OF NITROGEN CONTENT OF PIG FEEDS
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REDUCTION OF ENVIRONMENTAL POLLUTION THROUGH DECREASE OF NITROGEN CONTENT OF PIG FEEDS

Ilchev, A., Thracian University, Stara Zagora (Bulgaria) ; Ganchev, G., Thracian University, Stara Zagora (Bulgaria) ; Bivolarski, B., Thracian University, Stara Zagora (Bulgaria) ; Ilcheva, D., Thracian University, Stara Zagora (Bulgaria)

Journal of Mountain Agriculture on the Balkan (Bulgaria), 2011, Vol.14 (3), p.376-389

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2
Effect of long-term green fallow on inorganic nitrogen content in the soil
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Artigo
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Effect of long-term green fallow on inorganic nitrogen content in the soil

Ondriçik, P. (Slovak Agricultural Univ., Nitra (Slovakia))

Journal of Central European agriculture, 2002-12, Vol.3 (3), p.247-254 [Periódico revisado por pares]

University of Zagreb, Faculty of Agriculture

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3
Accumulation of nicotine and other nitrogen content matters in Burley tobacco
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Artigo
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Accumulation of nicotine and other nitrogen content matters in Burley tobacco

Stoilova, A., Institute of Tobacco and Tobacco Products, Plovdiv (Bulgaria)

Научни Трудове, Аграрен Университет, Пловдив (България), 2007, Vol.7 (1), p.19-22

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4
Relationship between the optical characteristics of beans leaves and the yield
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Artigo
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Relationship between the optical characteristics of beans leaves and the yield

Ilieva, V ; Kostadinova, L. (Institut po Pochvoznanie i Agroekologiya "N. Pushkarov", Sofia (Bulgaria))

Biotechnology, biotechnological equipment, 1996, Vol.10 (1), p.65-68 [Periódico revisado por pares]

Taylor & Francis

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5
Nitrification ability of long-acting nitrogen fertilizers
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Artigo
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Nitrification ability of long-acting nitrogen fertilizers

Slavov, D. (Institut po Tsvetarstvo, Negovan (Bulgaria))

Pocvoznanie, agrohimi i ekologi, 2000, Vol.35 (5)

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6
Dynamics of the content of nitrogen and some ashy elements in the leaves of two wild plum varieties
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Artigo
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Dynamics of the content of nitrogen and some ashy elements in the leaves of two wild plum varieties

Vitanova, I ; Bozhkova, V. (Opitna Stantsiya po Slivata, Dryanovo (Bulgaria))

Rasteniev"dni Nauki (Bulgaria), 1999, Vol.36 (7-8)

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7
Effect of different systems of tillage on the content and removal of nitrogen phosphorus and potassium from calcareous chernozem
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Artigo
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Effect of different systems of tillage on the content and removal of nitrogen phosphorus and potassium from calcareous chernozem

Stamboliev, M ; Khristov, I. (Kompleksna Opitna Stantsiya, Lom (Bulgaria))

Pocvoznanie, agrohimi i ekologi, 1999, Vol.34 (6)

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8
Study on the zeolite substrates mikroflora
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Artigo
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Study on the zeolite substrates mikroflora

Manolov, I. (Vissh Selskostopanski Institut, Plovdiv (Bulgaria)) ; Stoilov, G ; Najdenov, M

Pocvoznanie, agrohimi i ekologi, 2000, Vol.35 (6)

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9
Means for removal of negative effects of high amount nitrogen fertilizers in lettuce
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Artigo
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Means for removal of negative effects of high amount nitrogen fertilizers in lettuce

Mitreva, N ; Mitova, I. (Institut po Pochvoznanie "N. Pushkarov", Sofia (Bulgaria))

Pocvoznanie, agrohimi i ekologi, 2001, Vol.36 (1)

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10
Content, removal and balance of nutrients in maize, grown in a crop rotation link with wheat and after itself
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Artigo
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Content, removal and balance of nutrients in maize, grown in a crop rotation link with wheat and after itself

Nankov, M ; Glogova, L. (Institut po Tsarevitsato,3230 Knezha (Bulgaria)) ; Atanasov, P ; Velchev, V

Rastenievd́ni nauki, 2001, Vol.37 (3-4)

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