Results 111 to 120 of about 47,096,289 (234)

Utilization and fate of phosphorus of different sources applied to cohesive soil of Amazonian periphery

Scientia Agricola
In the Amazonian region, P is often a primary factor limiting sustainable agrosystems. We compared the efficiencies of local aluminous phosphate (ALP) and single superphosphate (SSP) under a cover of leguminous residues to determine the fate of P sources
Marta Jordana Arruda Coelho, Alana das Chagas Ferreira Aguiar, Virley Gardeny Lima Sena, Emanoel Gomes de Moura   +3 more
doaj   +1 more source

Meanings of fractions as demonstrated by future primary teachers in the initial phase of teacher education [PDF]

, 2012
Fractions are a fundamental content of primary-level education and must therefore be included in the training courses for primary school teachers. Experts argue that deep understanding is required to improve primary school teachers’ knowledge of this ...
Gómez, Pedro, Castro-Rodríguez, Elena, Rico, Luis   +2 more
core  

Quaternionic p -adic continued fractions

Communications in Algebra
20 pages, comments are welcome!
Laura Capuano, Marzio Mula, Lea Terracini   +2 more
openaire   +3 more sources

Characteristics of soil inorganic phosphorus and bioavailable phosphorus fractions in karst ecosystems, influenced by land use types and hydrothermal conditions

Guangxi Zhiwu
In order to gain an understanding of the characteristics of soil inorganic phosphorus and bioavailable phosphorus fractions affected by land use types and hydrothermal conditions in karst ecosystems, the characteristics of soil inorganic phosphorus and ...
YANG Qian1, ZHANG Wei2,4, LIANG Yueming3, WANG Kelin2,4, HU Peilei2,4, PAN Fujing1*
doaj   +1 more source

On fractional (p,q) $(p,q)$-calculus

Advances in Difference Equations, 2020
Abstract In this paper, the new concepts of (p,q) $(p,q)$-difference operators are introduced. The properties of fractional (p,q) $(p,q)$-calculus in the sense of a (p,q) $(p,q)$-difference operator are introduced and developed.
Jarunee Soontharanon, Thanin Sitthiwirattham   +1 more
openaire   +1 more source

Optimizing rice yield and phosphorus use efficiency through root morphology and soil phosphorus management in agricultural soils

Annals of Agricultural Sciences
Phosphorus (P) fertilizer is a significant cost in crop production. Understanding the mechanisms behind P fertilizer–soil–crop interactions can enhance phosphorus use efficiency (PUE) and increasing yield.
Peng Wei, Feng Shi, Xiaoxuan Wang, Shiyu Peng, Rushan Chai, Liangliang Zhang, Chaochun Zhang, Laichao Luo, Kadambot H.M. Siddique   +8 more
doaj   +1 more source

Fractional powers on noncommutative $L_p$ for $p<1$

, 2018
We prove that the homogeneous functional calculus associated to $x\mapsto |x|^\theta$ or $x\mapsto {\rm sgn}\, (x) |x|^{\theta}$ for ...
openaire   +3 more sources

Correction: Identification of soil P fractions that are associated with P loss from surface runoff under various cropping systems and fertilizer rates on sloped farmland. [PDF]

PLoS One, 2018
Li X, Wang B, Yang T, Zhu D, Nie Z, Xu J.   +5 more
europepmc   +1 more source

Effects of goat manure and inorganic phosphate addition on soil inorganic and microbial biomass phosphorus fractions under laboratory incubation conditions

, 2009
Changes in inorganic phosphorus (P) and soil microbial biomass P following the addition of goat manure and different amounts of inorganic P to an Umbric Ferralsol were assessed over 12 weeks under laboratory incubation conditions using a sequential ...
Mnkeni, P. N. S., Brookes, P. C., Gichangi, E. M.   +2 more
core   +1 more source

Identification of soil P fractions that are associated with P loss from surface runoff under various cropping systems and fertilizer rates on sloped farmland. [PDF]

PLoS One, 2017
Li X, Wang B, Yang T, Zhu D, Nie Z, Xu J.   +5 more
europepmc   +1 more source