Results 91 to 100 of about 47,096,289 (234)

Fracionamento do fósforo e avaliação de extratores do P-disponível em solos da Ilha de Fernando de Noronha Phosphorus fractionation and evaluation of available-P extractors in soils of Fernando de Noronha Island

Revista Brasileira de Engenharia Agrícola e Ambiental, 2005
Os solos de Fernando de Noronha, PE, possuem alta fertilidade natural e elevados teores de fósforo (P) em decorrência do material de origem vulcânica e da deposição de guano.
Alexandre T. da Rocha, Gustavo P. Duda, Clístenes W. A. Nascimento, Mateus R. Ribeiro   +3 more
doaj   +1 more source

Fractions avec une longueur, égalité, simplification

, 2009
Ensino Fundamental Final::MatemáticaL’objet présente la simplification des fractions en faisant usage de sa représentation graphique sur la ligne, où la fraction correspond à la longueur d'un segment [AB].
Dassonval, Roland
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Influence of drought stress on phosphorus dynamics and maize growth in tropical ecosystems

BMC Plant Biology
Drought has a significant impact on ecosystem functions, especially on the biogeochemical cycling of phosphorus (P), which is a crucial nutrient for plant growth and productivity. Despite its importance, the effects of different drought scenarios on soil
Mohsin Mahmood, Junjie Wang, Sajid Mehmood, Waqas Ahmed, Anam Ayyoub, Mahmoud F. Seleiman, Ahmed Salah Elrys, Ahmed S. M. Elnahal, Adnan Mustafa, Xiuwen Wei, Weidong Li   +10 more
doaj   +1 more source

Coniferous-broadleaf mixed plantations reshape phosphorus-solubilizing bacterial communities and enhance soil phosphorus bioavailability in subtropical forests

Forestry Research
Mixed-species plantations are proven to enhance phosphorus (P) availability in subtropical forest ecosystems. However, the effect of coniferous-broadleaf mixed plantations on soil P cycling dynamics remains poorly understood.
Yuting Zhang, Qiyan Liu, Kai Ding, Qinglin Sun, Meng Lu, Yifan Zhou, Qi Yang, Zaikang Tong, Junhong Zhang   +8 more
doaj   +1 more source

Lipschitz Regularity of Fractional p-Laplacian

Annals of PDE
31 pages, 1 ...
Biswas, Anup, Topp, Erwin
openaire   +2 more sources

Soil Phosphorus Fractions: Effects of Silicate Amendments and Phosphorus Sources in Brazilian Tropical Soils

Journal of Sustainable Agriculture and Environment
This study evaluated the effects of alternative phosphorus (P) sources and soil pH amendments on P fractions and soil chemical properties in two contrasting Brazilian tropical soils.
Lucas Jónatan Rodrigues da Silva, Ana Paula Rodrigues da Silva, Tainah Caroline Arruda Alves deLima, João Arthur Antonangelo, Dirceu Maximino Fernandes, Leonardo Theodoro Büll   +5 more
doaj   +1 more source

Antioxidant activity and total phenolic contentof ethyl acetate extract and fractions of Lantana camara L.leaf [PDF]

, 2020
Antioxidant activity and total phenolic contentof ethyl acetate extract and fractions of Lantana camara L ...
suryati, suryati
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A generalization of the field of fractions of an integral domain [PDF]

, 1970
In this paper the author deals with the problem of constructing the field of fractions of an integral domain and a generalization of one of the methods of construction used to construct a ring of left quotients for an arbitrary ring.
Michaud, Robert Eugene, NC DOCKS at The University of North Carolina at Greensboro   +1 more
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Dynamic Transformation of Different Phosphorus Fertilizer Sources and Their P Availability in Acidic and Calcareous Soils

Agriculture
Phosphorus (P) is a vital non-renewable macronutrient that is frequently immobilized by chemical fixation in acidic and calcareous soils. However, the specific transformation processes of different P sources across these different soil types remain ...
Nyein Nyein Thu, Long Zhou, Yi Zheng, Li Tang   +3 more
doaj   +1 more source

Body fractions: A physical approach to fraction learning [PDF]

, 2011
Many students experience great difficulty understanding the meaning of fractions (Anthony & Walshaw, 2007; Behr, Lesh, Post & Silver, 1983; Davis, Hunting & Pearn, 1993; Lamon, 2007; Verschaffel, Greer & Torbeyns, 2006; Young-Loveridge, Taylor, Hawera ...
Mills, Judith Patricia, Mills, Judith
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