In an 8-week greenhouse experiment, Bacopa monnieri (water hyssop) and Leersia oryzoides (rice cutgrass) were compared for nutrient assimilation as well as soil and water chemistry under variable flooding regimes using a nutrient solution rich in nitrogen (N) and phosphorus (P). Soil redox potential decreased in flooded treatments; however, mesocosms containing B. monnieri remained aerobic for ...

Water extractable nitrate nitrogen, phosphate phosphorus and iron(II) in relation to the total amount of these essential elements were analyzed in fruits and seeds of medicinal plants. Water extraction was chosen to simulate in the analytical procedure the way plant samples are prepared and used by people. The total amounts of nitrogen, phosphorus and phosphate phosphorus were determined in the...

During an attempt to crystallize potassium manganese diiron phosphate KMnFe(2)(PO(4))(3) by the flux method, a new phase, potassium dimanganese iron triphosphate, K(0.53)Mn(2.37)Fe(1.24)(PO(4))(3), was isolated. This phase, whose composition was confirmed by ICP analysis, is isotypic with the alluaudite-like phosphates, thus it exhibits the (A2)(A'2)(A1)(A'1)(A''1)(M1)(M2)(2)(PO(4))(3) general ...

Biochar has received increased attention in environmental applications recent years. Therefore, three pilot-scale denitrifying bioreactors, one filled with woodchips only and the other two enriched 10% 20% by volume of biochar from deciduous wood, were tested under field conditions for removal nitrate (NO3-N) phosphate (PO4-P) tile drainage water Lithuania over a 3-year period. The experiment s...

Agricultural management affects soil fertility through the frequency and type of agronomic practices such as mechanical operations, rate fertilizers, crop rotations, residue management. This study evaluated evolution chemical properties (pH; electrical conductivity; organic carbon, SOC; total Kjeldahl nitrogen, TKN; available phosphorous, PO4-P) over time in two farming systems, organically con...

The North Pacific Ocean is located at the end of thermohaline circulation deep water. This study reports on basin-scale full-depth sectional distributions total dissolvable (td), dissolved (d), and labile particulate (lp) Cd, Ni, Zn, Cu along three transects: GEOTRACES transects GP18 (165°E) GP02 (47°N), 160°W. We find that scavenging an important factor significantly affects dZn, dNi, dCu, whi...

BACKGROUND The chronic hyperglycemia of diabetes has been associated with an imbalance of some trace metal elements in the blood sample of type 2 diabetes patients. AIM To evaluate the status of serum ferritin and some selected metal elements among type 2 diabetes mellitus (T2DM) patients. METHODS Facility-based comparative cross-sectional study was conducted from February 15, 2015 to Octob...

Proximal convoluted (S2) and straight (S3) renal tubule segments were studied to determine the effect of Ca on lumen-to-bath phosphate flux (JlbPO4). Increasing bath and perfusate Ca from 1.8 to 3.6 mM enhanced JlbPO4 from 3.3 +/- 0.7 to 6.6 +/- 0.6 pmol/mm per min in S2 segments (P less than 0.001) but had no effect in S3 segments. Decreasing bath and perfusate Ca from 1.8 to 0.2 mM reduced Jl...