Acacia koa forests benefit from phosphorus fertilisation, but it is unknown if fertilisation is a short or long term effect on P availability. Past research suggests that P cycling in soils with high P sorption capacity, such as Andisols, was through organic pathways.We studied leaf P and soil P fractions in a tropical forest Andisol for 3 years after fertilisation with triple super phosphate. ...

The phosphorus compounds of cotton embryos, particularly ribonucleic (RNA) and deoxyribonucleic (DNA) acid, and their metabolism during germination have not been intensively investigated with modern methods of analysis. In the period 1913 to 1918 Anderson (1) and Rather (9) elucidated the true nature of phytic acid, the principal form of seed phosphorus. Although Anderson obtained the hexaphosp...

Increased inputs of phosphorus (P) and heavy metals to agricultural soils have caused considerable concern. Information on accumulation and chemical forms of the elements in soils is needed as a guide for the judicious application of agricultural chemicals and organic manures. The focus of this study was to assess accumulation of P and heavy metals among various fractions of a sandy soil with a...

Continued fractions in R have a single definition and algorithms for approximating them are well known. There also exists a well known result which states that √ m, m ∈ Q, always has a periodic continued fraction representation. In Qp, the field of p-adics, however, there are competing and non-equivalent definitions of continued fractions and no single algorithm exists which always produces a p...

We report a P nuclear magnetic resonance (P-NMR) investigation of buffalo milk, milk ultrafiltrate, and phospholipids from milk fat; for comparison corresponding data were also acquired for cow milk samples. In buffalo milk samples, we identified glycerophosphorylcoline, glycerophosphorylethanolamine and inorganic orthophosphate resonances, together with a broad peak assigned to serylphosphate ...

Understanding the soil phosphorus (P) cycle is a prerequisite for sustainable management of land resources. The sequential-extraction method was used to determine P fractions in 513 soils Larix principis-rupprechtii Mayr. plantations. With these data, this study applied structural equation modeling evaluate interaction between various fractions. Quantitative analysis conducted on importance dif...

Low nocturnal temperature (LNT) is a major constraint for protected tomato production in China during winter and spring, which leads to phosphorus (P) deficiency symptoms. The soil P fractions reflect availability. foliar root the adaptation strategies of tomatoes LNT. However, relationship between plant under LNT not well understood. Therefore, we conducted 40-day indoor incubation experiment ...